feat: add vpn server setup scripts
continuous-integration/drone/push Build is passing
Details
continuous-integration/drone/push Build is passing
Details
parent
ddd4d4cd43
commit
83c29825f9
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#!/bin/bash
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#
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# https://github.com/Nyr/openvpn-install
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#
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# Copyright (c) 2013 Nyr. Released under the MIT License.
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# Detect Debian users running the script with "sh" instead of bash
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if readlink /proc/$$/exe | grep -q "dash"; then
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echo 'This installer needs to be run with "bash", not "sh".'
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exit
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fi
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# Discard stdin. Needed when running from an one-liner which includes a newline
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read -N 999999 -t 0.001
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# Detect OpenVZ 6
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if [[ $(uname -r | cut -d "." -f 1) -eq 2 ]]; then
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echo "The system is running an old kernel, which is incompatible with this installer."
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exit
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fi
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# Detect OS
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# $os_version variables aren't always in use, but are kept here for convenience
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if grep -qs "ubuntu" /etc/os-release; then
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os="ubuntu"
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os_version=$(grep 'VERSION_ID' /etc/os-release | cut -d '"' -f 2 | tr -d '.')
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group_name="nogroup"
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elif [[ -e /etc/debian_version ]]; then
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os="debian"
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os_version=$(grep -oE '[0-9]+' /etc/debian_version | head -1)
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group_name="nogroup"
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elif [[ -e /etc/almalinux-release || -e /etc/rocky-release || -e /etc/centos-release ]]; then
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os="centos"
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os_version=$(grep -shoE '[0-9]+' /etc/almalinux-release /etc/rocky-release /etc/centos-release | head -1)
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group_name="nobody"
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elif [[ -e /etc/fedora-release ]]; then
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os="fedora"
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os_version=$(grep -oE '[0-9]+' /etc/fedora-release | head -1)
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group_name="nobody"
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else
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echo "This installer seems to be running on an unsupported distribution.
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Supported distros are Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora."
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exit
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fi
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if [[ "$os" == "ubuntu" && "$os_version" -lt 1804 ]]; then
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echo "Ubuntu 18.04 or higher is required to use this installer.
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This version of Ubuntu is too old and unsupported."
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exit
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fi
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if [[ "$os" == "debian" && "$os_version" -lt 9 ]]; then
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echo "Debian 9 or higher is required to use this installer.
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This version of Debian is too old and unsupported."
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exit
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fi
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if [[ "$os" == "centos" && "$os_version" -lt 7 ]]; then
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echo "CentOS 7 or higher is required to use this installer.
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This version of CentOS is too old and unsupported."
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exit
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fi
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# Detect environments where $PATH does not include the sbin directories
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if ! grep -q sbin <<< "$PATH"; then
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echo '$PATH does not include sbin. Try using "su -" instead of "su".'
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exit
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fi
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if [[ "$EUID" -ne 0 ]]; then
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echo "This installer needs to be run with superuser privileges."
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exit
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fi
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if [[ ! -e /dev/net/tun ]] || ! ( exec 7<>/dev/net/tun ) 2>/dev/null; then
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echo "The system does not have the TUN device available.
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TUN needs to be enabled before running this installer."
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exit
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fi
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new_client () {
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# Generates the custom client.ovpn
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{
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cat /etc/openvpn/server/client-common.txt
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echo "<ca>"
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cat /etc/openvpn/server/easy-rsa/pki/ca.crt
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echo "</ca>"
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echo "<cert>"
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sed -ne '/BEGIN CERTIFICATE/,$ p' /etc/openvpn/server/easy-rsa/pki/issued/"$client".crt
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echo "</cert>"
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echo "<key>"
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cat /etc/openvpn/server/easy-rsa/pki/private/"$client".key
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echo "</key>"
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echo "<tls-crypt>"
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sed -ne '/BEGIN OpenVPN Static key/,$ p' /etc/openvpn/server/tc.key
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echo "</tls-crypt>"
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} > ~/"$client".ovpn
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}
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if [[ ! -e /etc/openvpn/server/server.conf ]]; then
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# Detect some Debian minimal setups where neither wget nor curl are installed
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if ! hash wget 2>/dev/null && ! hash curl 2>/dev/null; then
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echo "Wget is required to use this installer."
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read -n1 -r -p "Press any key to install Wget and continue..."
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apt-get update
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apt-get install -y wget
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fi
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clear
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echo 'Welcome to this OpenVPN road warrior installer!'
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# If system has a single IPv4, it is selected automatically. Else, ask the user
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if [[ $(ip -4 addr | grep inet | grep -vEc '127(\.[0-9]{1,3}){3}') -eq 1 ]]; then
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ip=$(ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}')
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else
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number_of_ip=$(ip -4 addr | grep inet | grep -vEc '127(\.[0-9]{1,3}){3}')
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echo
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echo "Which IPv4 address should be used?"
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ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | nl -s ') '
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read -p "IPv4 address [1]: " ip_number
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until [[ -z "$ip_number" || "$ip_number" =~ ^[0-9]+$ && "$ip_number" -le "$number_of_ip" ]]; do
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echo "$ip_number: invalid selection."
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read -p "IPv4 address [1]: " ip_number
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done
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[[ -z "$ip_number" ]] && ip_number="1"
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ip=$(ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | sed -n "$ip_number"p)
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fi
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# If $ip is a private IP address, the server must be behind NAT
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if echo "$ip" | grep -qE '^(10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.|192\.168)'; then
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echo
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echo "This server is behind NAT. What is the public IPv4 address or hostname?"
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# Get public IP and sanitize with grep
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get_public_ip=$(grep -m 1 -oE '^[0-9]{1,3}(\.[0-9]{1,3}){3}$' <<< "$(wget -T 10 -t 1 -4qO- "http://ip1.dynupdate.no-ip.com/" || curl -m 10 -4Ls "http://ip1.dynupdate.no-ip.com/")")
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read -p "Public IPv4 address / hostname [$get_public_ip]: " public_ip
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# If the checkip service is unavailable and user didn't provide input, ask again
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until [[ -n "$get_public_ip" || -n "$public_ip" ]]; do
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echo "Invalid input."
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read -p "Public IPv4 address / hostname: " public_ip
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done
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[[ -z "$public_ip" ]] && public_ip="$get_public_ip"
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fi
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# If system has a single IPv6, it is selected automatically
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if [[ $(ip -6 addr | grep -c 'inet6 [23]') -eq 1 ]]; then
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ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}')
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fi
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# If system has multiple IPv6, ask the user to select one
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if [[ $(ip -6 addr | grep -c 'inet6 [23]') -gt 1 ]]; then
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number_of_ip6=$(ip -6 addr | grep -c 'inet6 [23]')
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echo
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echo "Which IPv6 address should be used?"
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ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | nl -s ') '
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read -p "IPv6 address [1]: " ip6_number
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until [[ -z "$ip6_number" || "$ip6_number" =~ ^[0-9]+$ && "$ip6_number" -le "$number_of_ip6" ]]; do
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echo "$ip6_number: invalid selection."
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read -p "IPv6 address [1]: " ip6_number
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done
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[[ -z "$ip6_number" ]] && ip6_number="1"
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ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | sed -n "$ip6_number"p)
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fi
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echo
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echo "Which protocol should OpenVPN use?"
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echo " 1) UDP (recommended)"
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echo " 2) TCP"
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read -p "Protocol [1]: " protocol
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until [[ -z "$protocol" || "$protocol" =~ ^[12]$ ]]; do
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echo "$protocol: invalid selection."
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read -p "Protocol [1]: " protocol
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done
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case "$protocol" in
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1|"")
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protocol=udp
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;;
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2)
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protocol=tcp
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;;
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esac
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echo
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echo "What port should OpenVPN listen to?"
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read -p "Port [1194]: " port
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until [[ -z "$port" || "$port" =~ ^[0-9]+$ && "$port" -le 65535 ]]; do
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echo "$port: invalid port."
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read -p "Port [1194]: " port
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done
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[[ -z "$port" ]] && port="1194"
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echo
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echo "Select a DNS server for the clients:"
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echo " 1) Current system resolvers"
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echo " 2) Google"
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echo " 3) 1.1.1.1"
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echo " 4) OpenDNS"
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echo " 5) Quad9"
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echo " 6) AdGuard"
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read -p "DNS server [1]: " dns
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until [[ -z "$dns" || "$dns" =~ ^[1-6]$ ]]; do
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echo "$dns: invalid selection."
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read -p "DNS server [1]: " dns
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done
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echo
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echo "Enter a name for the first client:"
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read -p "Name [client]: " unsanitized_client
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# Allow a limited set of characters to avoid conflicts
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client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
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[[ -z "$client" ]] && client="client"
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echo
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echo "OpenVPN installation is ready to begin."
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# Install a firewall if firewalld or iptables are not already available
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if ! systemctl is-active --quiet firewalld.service && ! hash iptables 2>/dev/null; then
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if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
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firewall="firewalld"
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# We don't want to silently enable firewalld, so we give a subtle warning
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# If the user continues, firewalld will be installed and enabled during setup
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echo "firewalld, which is required to manage routing tables, will also be installed."
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elif [[ "$os" == "debian" || "$os" == "ubuntu" ]]; then
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# iptables is way less invasive than firewalld so no warning is given
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firewall="iptables"
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fi
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fi
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read -n1 -r -p "Press any key to continue..."
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# If running inside a container, disable LimitNPROC to prevent conflicts
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if systemd-detect-virt -cq; then
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mkdir /etc/systemd/system/openvpn-server@server.service.d/ 2>/dev/null
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echo "[Service]
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LimitNPROC=infinity" > /etc/systemd/system/openvpn-server@server.service.d/disable-limitnproc.conf
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fi
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if [[ "$os" = "debian" || "$os" = "ubuntu" ]]; then
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apt-get update
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apt-get install -y openvpn openssl ca-certificates $firewall
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elif [[ "$os" = "centos" ]]; then
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yum install -y epel-release
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yum install -y openvpn openssl ca-certificates tar $firewall
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else
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# Else, OS must be Fedora
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dnf install -y openvpn openssl ca-certificates tar $firewall
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fi
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# If firewalld was just installed, enable it
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if [[ "$firewall" == "firewalld" ]]; then
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systemctl enable --now firewalld.service
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fi
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# Get easy-rsa
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easy_rsa_url='https://github.com/OpenVPN/easy-rsa/releases/download/v3.0.8/EasyRSA-3.0.8.tgz'
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mkdir -p /etc/openvpn/server/easy-rsa/
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{ wget -qO- "$easy_rsa_url" 2>/dev/null || curl -sL "$easy_rsa_url" ; } | tar xz -C /etc/openvpn/server/easy-rsa/ --strip-components 1
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chown -R root:root /etc/openvpn/server/easy-rsa/
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cd /etc/openvpn/server/easy-rsa/
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# Create the PKI, set up the CA and the server and client certificates
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./easyrsa init-pki
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./easyrsa --batch build-ca nopass
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-server-full server nopass
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EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
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EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
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# Move the stuff we need
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cp pki/ca.crt pki/private/ca.key pki/issued/server.crt pki/private/server.key pki/crl.pem /etc/openvpn/server
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# CRL is read with each client connection, while OpenVPN is dropped to nobody
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chown nobody:"$group_name" /etc/openvpn/server/crl.pem
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# Without +x in the directory, OpenVPN can't run a stat() on the CRL file
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chmod o+x /etc/openvpn/server/
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# Generate key for tls-crypt
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openvpn --genkey --secret /etc/openvpn/server/tc.key
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# Create the DH parameters file using the predefined ffdhe2048 group
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echo '-----BEGIN DH PARAMETERS-----
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MIIBCAKCAQEA//////////+t+FRYortKmq/cViAnPTzx2LnFg84tNpWp4TZBFGQz
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+8yTnc4kmz75fS/jY2MMddj2gbICrsRhetPfHtXV/WVhJDP1H18GbtCFY2VVPe0a
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87VXE15/V8k1mE8McODmi3fipona8+/och3xWKE2rec1MKzKT0g6eXq8CrGCsyT7
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YdEIqUuyyOP7uWrat2DX9GgdT0Kj3jlN9K5W7edjcrsZCwenyO4KbXCeAvzhzffi
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7MA0BM0oNC9hkXL+nOmFg/+OTxIy7vKBg8P+OxtMb61zO7X8vC7CIAXFjvGDfRaD
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ssbzSibBsu/6iGtCOGEoXJf//////////wIBAg==
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-----END DH PARAMETERS-----' > /etc/openvpn/server/dh.pem
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# Generate server.conf
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echo "local $ip
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port $port
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proto $protocol
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dev tun
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ca ca.crt
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cert server.crt
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key server.key
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dh dh.pem
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auth SHA512
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tls-crypt tc.key
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topology subnet
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server 10.8.0.0 255.255.255.0" > /etc/openvpn/server/server.conf
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# IPv6
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if [[ -z "$ip6" ]]; then
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echo 'push "redirect-gateway def1 bypass-dhcp"' >> /etc/openvpn/server/server.conf
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else
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echo 'server-ipv6 fddd:1194:1194:1194::/64' >> /etc/openvpn/server/server.conf
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echo 'push "redirect-gateway def1 ipv6 bypass-dhcp"' >> /etc/openvpn/server/server.conf
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fi
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echo 'ifconfig-pool-persist ipp.txt' >> /etc/openvpn/server/server.conf
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# DNS
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case "$dns" in
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1|"")
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# Locate the proper resolv.conf
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# Needed for systems running systemd-resolved
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if grep -q '^nameserver 127.0.0.53' "/etc/resolv.conf"; then
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resolv_conf="/run/systemd/resolve/resolv.conf"
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else
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resolv_conf="/etc/resolv.conf"
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fi
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# Obtain the resolvers from resolv.conf and use them for OpenVPN
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grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | while read line; do
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echo "push \"dhcp-option DNS $line\"" >> /etc/openvpn/server/server.conf
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done
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;;
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2)
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||||||
|
echo 'push "dhcp-option DNS 8.8.8.8"' >> /etc/openvpn/server/server.conf
|
||||||
|
echo 'push "dhcp-option DNS 8.8.4.4"' >> /etc/openvpn/server/server.conf
|
||||||
|
;;
|
||||||
|
3)
|
||||||
|
echo 'push "dhcp-option DNS 1.1.1.1"' >> /etc/openvpn/server/server.conf
|
||||||
|
echo 'push "dhcp-option DNS 1.0.0.1"' >> /etc/openvpn/server/server.conf
|
||||||
|
;;
|
||||||
|
4)
|
||||||
|
echo 'push "dhcp-option DNS 208.67.222.222"' >> /etc/openvpn/server/server.conf
|
||||||
|
echo 'push "dhcp-option DNS 208.67.220.220"' >> /etc/openvpn/server/server.conf
|
||||||
|
;;
|
||||||
|
5)
|
||||||
|
echo 'push "dhcp-option DNS 9.9.9.9"' >> /etc/openvpn/server/server.conf
|
||||||
|
echo 'push "dhcp-option DNS 149.112.112.112"' >> /etc/openvpn/server/server.conf
|
||||||
|
;;
|
||||||
|
6)
|
||||||
|
echo 'push "dhcp-option DNS 94.140.14.14"' >> /etc/openvpn/server/server.conf
|
||||||
|
echo 'push "dhcp-option DNS 94.140.15.15"' >> /etc/openvpn/server/server.conf
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
echo "keepalive 10 120
|
||||||
|
cipher AES-256-CBC
|
||||||
|
user nobody
|
||||||
|
group $group_name
|
||||||
|
persist-key
|
||||||
|
persist-tun
|
||||||
|
verb 3
|
||||||
|
crl-verify crl.pem" >> /etc/openvpn/server/server.conf
|
||||||
|
if [[ "$protocol" = "udp" ]]; then
|
||||||
|
echo "explicit-exit-notify" >> /etc/openvpn/server/server.conf
|
||||||
|
fi
|
||||||
|
# Enable net.ipv4.ip_forward for the system
|
||||||
|
echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-openvpn-forward.conf
|
||||||
|
# Enable without waiting for a reboot or service restart
|
||||||
|
echo 1 > /proc/sys/net/ipv4/ip_forward
|
||||||
|
if [[ -n "$ip6" ]]; then
|
||||||
|
# Enable net.ipv6.conf.all.forwarding for the system
|
||||||
|
echo "net.ipv6.conf.all.forwarding=1" >> /etc/sysctl.d/99-openvpn-forward.conf
|
||||||
|
# Enable without waiting for a reboot or service restart
|
||||||
|
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
|
||||||
|
fi
|
||||||
|
if systemctl is-active --quiet firewalld.service; then
|
||||||
|
# Using both permanent and not permanent rules to avoid a firewalld
|
||||||
|
# reload.
|
||||||
|
# We don't use --add-service=openvpn because that would only work with
|
||||||
|
# the default port and protocol.
|
||||||
|
firewall-cmd --add-port="$port"/"$protocol"
|
||||||
|
firewall-cmd --zone=trusted --add-source=10.8.0.0/24
|
||||||
|
firewall-cmd --permanent --add-port="$port"/"$protocol"
|
||||||
|
firewall-cmd --permanent --zone=trusted --add-source=10.8.0.0/24
|
||||||
|
# Set NAT for the VPN subnet
|
||||||
|
firewall-cmd --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
|
||||||
|
firewall-cmd --permanent --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
|
||||||
|
if [[ -n "$ip6" ]]; then
|
||||||
|
firewall-cmd --zone=trusted --add-source=fddd:1194:1194:1194::/64
|
||||||
|
firewall-cmd --permanent --zone=trusted --add-source=fddd:1194:1194:1194::/64
|
||||||
|
firewall-cmd --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
|
||||||
|
firewall-cmd --permanent --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
# Create a service to set up persistent iptables rules
|
||||||
|
iptables_path=$(command -v iptables)
|
||||||
|
ip6tables_path=$(command -v ip6tables)
|
||||||
|
# nf_tables is not available as standard in OVZ kernels. So use iptables-legacy
|
||||||
|
# if we are in OVZ, with a nf_tables backend and iptables-legacy is available.
|
||||||
|
if [[ $(systemd-detect-virt) == "openvz" ]] && readlink -f "$(command -v iptables)" | grep -q "nft" && hash iptables-legacy 2>/dev/null; then
|
||||||
|
iptables_path=$(command -v iptables-legacy)
|
||||||
|
ip6tables_path=$(command -v ip6tables-legacy)
|
||||||
|
fi
|
||||||
|
echo "[Unit]
|
||||||
|
Before=network.target
|
||||||
|
[Service]
|
||||||
|
Type=oneshot
|
||||||
|
ExecStart=$iptables_path -t nat -A POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip
|
||||||
|
ExecStart=$iptables_path -I INPUT -p $protocol --dport $port -j ACCEPT
|
||||||
|
ExecStart=$iptables_path -I FORWARD -s 10.8.0.0/24 -j ACCEPT
|
||||||
|
ExecStart=$iptables_path -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||||||
|
ExecStop=$iptables_path -t nat -D POSTROUTING -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to $ip
|
||||||
|
ExecStop=$iptables_path -D INPUT -p $protocol --dport $port -j ACCEPT
|
||||||
|
ExecStop=$iptables_path -D FORWARD -s 10.8.0.0/24 -j ACCEPT
|
||||||
|
ExecStop=$iptables_path -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" > /etc/systemd/system/openvpn-iptables.service
|
||||||
|
if [[ -n "$ip6" ]]; then
|
||||||
|
echo "ExecStart=$ip6tables_path -t nat -A POSTROUTING -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to $ip6
|
||||||
|
ExecStart=$ip6tables_path -I FORWARD -s fddd:1194:1194:1194::/64 -j ACCEPT
|
||||||
|
ExecStart=$ip6tables_path -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||||||
|
ExecStop=$ip6tables_path -t nat -D POSTROUTING -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to $ip6
|
||||||
|
ExecStop=$ip6tables_path -D FORWARD -s fddd:1194:1194:1194::/64 -j ACCEPT
|
||||||
|
ExecStop=$ip6tables_path -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" >> /etc/systemd/system/openvpn-iptables.service
|
||||||
|
fi
|
||||||
|
echo "RemainAfterExit=yes
|
||||||
|
[Install]
|
||||||
|
WantedBy=multi-user.target" >> /etc/systemd/system/openvpn-iptables.service
|
||||||
|
systemctl enable --now openvpn-iptables.service
|
||||||
|
fi
|
||||||
|
# If SELinux is enabled and a custom port was selected, we need this
|
||||||
|
if sestatus 2>/dev/null | grep "Current mode" | grep -q "enforcing" && [[ "$port" != 1194 ]]; then
|
||||||
|
# Install semanage if not already present
|
||||||
|
if ! hash semanage 2>/dev/null; then
|
||||||
|
if [[ "$os_version" -eq 7 ]]; then
|
||||||
|
# Centos 7
|
||||||
|
yum install -y policycoreutils-python
|
||||||
|
else
|
||||||
|
# CentOS 8 or Fedora
|
||||||
|
dnf install -y policycoreutils-python-utils
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
semanage port -a -t openvpn_port_t -p "$protocol" "$port"
|
||||||
|
fi
|
||||||
|
# If the server is behind NAT, use the correct IP address
|
||||||
|
[[ -n "$public_ip" ]] && ip="$public_ip"
|
||||||
|
# client-common.txt is created so we have a template to add further users later
|
||||||
|
echo "client
|
||||||
|
dev tun
|
||||||
|
proto $protocol
|
||||||
|
remote $ip $port
|
||||||
|
resolv-retry infinite
|
||||||
|
nobind
|
||||||
|
persist-key
|
||||||
|
persist-tun
|
||||||
|
remote-cert-tls server
|
||||||
|
auth SHA512
|
||||||
|
cipher AES-256-CBC
|
||||||
|
ignore-unknown-option block-outside-dns
|
||||||
|
block-outside-dns
|
||||||
|
verb 3" > /etc/openvpn/server/client-common.txt
|
||||||
|
# Enable and start the OpenVPN service
|
||||||
|
systemctl enable --now openvpn-server@server.service
|
||||||
|
# Generates the custom client.ovpn
|
||||||
|
new_client
|
||||||
|
echo
|
||||||
|
echo "Finished!"
|
||||||
|
echo
|
||||||
|
echo "The client configuration is available in:" ~/"$client.ovpn"
|
||||||
|
echo "New clients can be added by running this script again."
|
||||||
|
else
|
||||||
|
clear
|
||||||
|
echo "OpenVPN is already installed."
|
||||||
|
echo
|
||||||
|
echo "Select an option:"
|
||||||
|
echo " 1) Add a new client"
|
||||||
|
echo " 2) Revoke an existing client"
|
||||||
|
echo " 3) Remove OpenVPN"
|
||||||
|
echo " 4) Exit"
|
||||||
|
read -p "Option: " option
|
||||||
|
until [[ "$option" =~ ^[1-4]$ ]]; do
|
||||||
|
echo "$option: invalid selection."
|
||||||
|
read -p "Option: " option
|
||||||
|
done
|
||||||
|
case "$option" in
|
||||||
|
1)
|
||||||
|
echo
|
||||||
|
echo "Provide a name for the client:"
|
||||||
|
read -p "Name: " unsanitized_client
|
||||||
|
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
|
||||||
|
while [[ -z "$client" || -e /etc/openvpn/server/easy-rsa/pki/issued/"$client".crt ]]; do
|
||||||
|
echo "$client: invalid name."
|
||||||
|
read -p "Name: " unsanitized_client
|
||||||
|
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
|
||||||
|
done
|
||||||
|
cd /etc/openvpn/server/easy-rsa/
|
||||||
|
EASYRSA_CERT_EXPIRE=3650 ./easyrsa build-client-full "$client" nopass
|
||||||
|
# Generates the custom client.ovpn
|
||||||
|
new_client
|
||||||
|
echo
|
||||||
|
echo "$client added. Configuration available in:" ~/"$client.ovpn"
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
2)
|
||||||
|
# This option could be documented a bit better and maybe even be simplified
|
||||||
|
# ...but what can I say, I want some sleep too
|
||||||
|
number_of_clients=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep -c "^V")
|
||||||
|
if [[ "$number_of_clients" = 0 ]]; then
|
||||||
|
echo
|
||||||
|
echo "There are no existing clients!"
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "Select the client to revoke:"
|
||||||
|
tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
|
||||||
|
read -p "Client: " client_number
|
||||||
|
until [[ "$client_number" =~ ^[0-9]+$ && "$client_number" -le "$number_of_clients" ]]; do
|
||||||
|
echo "$client_number: invalid selection."
|
||||||
|
read -p "Client: " client_number
|
||||||
|
done
|
||||||
|
client=$(tail -n +2 /etc/openvpn/server/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | sed -n "$client_number"p)
|
||||||
|
echo
|
||||||
|
read -p "Confirm $client revocation? [y/N]: " revoke
|
||||||
|
until [[ "$revoke" =~ ^[yYnN]*$ ]]; do
|
||||||
|
echo "$revoke: invalid selection."
|
||||||
|
read -p "Confirm $client revocation? [y/N]: " revoke
|
||||||
|
done
|
||||||
|
if [[ "$revoke" =~ ^[yY]$ ]]; then
|
||||||
|
cd /etc/openvpn/server/easy-rsa/
|
||||||
|
./easyrsa --batch revoke "$client"
|
||||||
|
EASYRSA_CRL_DAYS=3650 ./easyrsa gen-crl
|
||||||
|
rm -f /etc/openvpn/server/crl.pem
|
||||||
|
cp /etc/openvpn/server/easy-rsa/pki/crl.pem /etc/openvpn/server/crl.pem
|
||||||
|
# CRL is read with each client connection, when OpenVPN is dropped to nobody
|
||||||
|
chown nobody:"$group_name" /etc/openvpn/server/crl.pem
|
||||||
|
echo
|
||||||
|
echo "$client revoked!"
|
||||||
|
else
|
||||||
|
echo
|
||||||
|
echo "$client revocation aborted!"
|
||||||
|
fi
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
3)
|
||||||
|
echo
|
||||||
|
read -p "Confirm OpenVPN removal? [y/N]: " remove
|
||||||
|
until [[ "$remove" =~ ^[yYnN]*$ ]]; do
|
||||||
|
echo "$remove: invalid selection."
|
||||||
|
read -p "Confirm OpenVPN removal? [y/N]: " remove
|
||||||
|
done
|
||||||
|
if [[ "$remove" =~ ^[yY]$ ]]; then
|
||||||
|
port=$(grep '^port ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
|
||||||
|
protocol=$(grep '^proto ' /etc/openvpn/server/server.conf | cut -d " " -f 2)
|
||||||
|
if systemctl is-active --quiet firewalld.service; then
|
||||||
|
ip=$(firewall-cmd --direct --get-rules ipv4 nat POSTROUTING | grep '\-s 10.8.0.0/24 '"'"'!'"'"' -d 10.8.0.0/24' | grep -oE '[^ ]+$')
|
||||||
|
# Using both permanent and not permanent rules to avoid a firewalld reload.
|
||||||
|
firewall-cmd --remove-port="$port"/"$protocol"
|
||||||
|
firewall-cmd --zone=trusted --remove-source=10.8.0.0/24
|
||||||
|
firewall-cmd --permanent --remove-port="$port"/"$protocol"
|
||||||
|
firewall-cmd --permanent --zone=trusted --remove-source=10.8.0.0/24
|
||||||
|
firewall-cmd --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
|
||||||
|
firewall-cmd --permanent --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.8.0.0/24 ! -d 10.8.0.0/24 -j SNAT --to "$ip"
|
||||||
|
if grep -qs "server-ipv6" /etc/openvpn/server/server.conf; then
|
||||||
|
ip6=$(firewall-cmd --direct --get-rules ipv6 nat POSTROUTING | grep '\-s fddd:1194:1194:1194::/64 '"'"'!'"'"' -d fddd:1194:1194:1194::/64' | grep -oE '[^ ]+$')
|
||||||
|
firewall-cmd --zone=trusted --remove-source=fddd:1194:1194:1194::/64
|
||||||
|
firewall-cmd --permanent --zone=trusted --remove-source=fddd:1194:1194:1194::/64
|
||||||
|
firewall-cmd --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
|
||||||
|
firewall-cmd --permanent --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:1194:1194:1194::/64 ! -d fddd:1194:1194:1194::/64 -j SNAT --to "$ip6"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
systemctl disable --now openvpn-iptables.service
|
||||||
|
rm -f /etc/systemd/system/openvpn-iptables.service
|
||||||
|
fi
|
||||||
|
if sestatus 2>/dev/null | grep "Current mode" | grep -q "enforcing" && [[ "$port" != 1194 ]]; then
|
||||||
|
semanage port -d -t openvpn_port_t -p "$protocol" "$port"
|
||||||
|
fi
|
||||||
|
systemctl disable --now openvpn-server@server.service
|
||||||
|
rm -f /etc/systemd/system/openvpn-server@server.service.d/disable-limitnproc.conf
|
||||||
|
rm -f /etc/sysctl.d/99-openvpn-forward.conf
|
||||||
|
if [[ "$os" = "debian" || "$os" = "ubuntu" ]]; then
|
||||||
|
rm -rf /etc/openvpn/server
|
||||||
|
apt-get remove --purge -y openvpn
|
||||||
|
else
|
||||||
|
# Else, OS must be CentOS or Fedora
|
||||||
|
yum remove -y openvpn
|
||||||
|
rm -rf /etc/openvpn/server
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "OpenVPN removed!"
|
||||||
|
else
|
||||||
|
echo
|
||||||
|
echo "OpenVPN removal aborted!"
|
||||||
|
fi
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
4)
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
|
@ -0,0 +1,692 @@
|
||||||
|
#!/bin/bash
|
||||||
|
#
|
||||||
|
# https://github.com/Nyr/wireguard-install
|
||||||
|
#
|
||||||
|
# Copyright (c) 2020 Nyr. Released under the MIT License.
|
||||||
|
|
||||||
|
|
||||||
|
# Detect Debian users running the script with "sh" instead of bash
|
||||||
|
if readlink /proc/$$/exe | grep -q "dash"; then
|
||||||
|
echo 'This installer needs to be run with "bash", not "sh".'
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Discard stdin. Needed when running from an one-liner which includes a newline
|
||||||
|
read -N 999999 -t 0.001
|
||||||
|
|
||||||
|
# Detect OpenVZ 6
|
||||||
|
if [[ $(uname -r | cut -d "." -f 1) -eq 2 ]]; then
|
||||||
|
echo "The system is running an old kernel, which is incompatible with this installer."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Detect OS
|
||||||
|
# $os_version variables aren't always in use, but are kept here for convenience
|
||||||
|
if grep -qs "ubuntu" /etc/os-release; then
|
||||||
|
os="ubuntu"
|
||||||
|
os_version=$(grep 'VERSION_ID' /etc/os-release | cut -d '"' -f 2 | tr -d '.')
|
||||||
|
elif [[ -e /etc/debian_version ]]; then
|
||||||
|
os="debian"
|
||||||
|
os_version=$(grep -oE '[0-9]+' /etc/debian_version | head -1)
|
||||||
|
elif [[ -e /etc/almalinux-release || -e /etc/rocky-release || -e /etc/centos-release ]]; then
|
||||||
|
os="centos"
|
||||||
|
os_version=$(grep -shoE '[0-9]+' /etc/almalinux-release /etc/rocky-release /etc/centos-release | head -1)
|
||||||
|
elif [[ -e /etc/fedora-release ]]; then
|
||||||
|
os="fedora"
|
||||||
|
os_version=$(grep -oE '[0-9]+' /etc/fedora-release | head -1)
|
||||||
|
else
|
||||||
|
echo "This installer seems to be running on an unsupported distribution.
|
||||||
|
Supported distros are Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ "$os" == "ubuntu" && "$os_version" -lt 1804 ]]; then
|
||||||
|
echo "Ubuntu 18.04 or higher is required to use this installer.
|
||||||
|
This version of Ubuntu is too old and unsupported."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ "$os" == "debian" && "$os_version" -lt 10 ]]; then
|
||||||
|
echo "Debian 10 or higher is required to use this installer.
|
||||||
|
This version of Debian is too old and unsupported."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ "$os" == "centos" && "$os_version" -lt 7 ]]; then
|
||||||
|
echo "CentOS 7 or higher is required to use this installer.
|
||||||
|
This version of CentOS is too old and unsupported."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Detect environments where $PATH does not include the sbin directories
|
||||||
|
if ! grep -q sbin <<< "$PATH"; then
|
||||||
|
echo '$PATH does not include sbin. Try using "su -" instead of "su".'
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
systemd-detect-virt -cq
|
||||||
|
is_container="$?"
|
||||||
|
|
||||||
|
if [[ "$os" == "fedora" && "$os_version" -eq 31 && $(uname -r | cut -d "." -f 2) -lt 6 && ! "$is_container" -eq 0 ]]; then
|
||||||
|
echo 'Fedora 31 is supported, but the kernel is outdated.
|
||||||
|
Upgrade the kernel using "dnf upgrade kernel" and restart.'
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ "$EUID" -ne 0 ]]; then
|
||||||
|
echo "This installer needs to be run with superuser privileges."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
|
||||||
|
if [[ "$is_container" -eq 0 ]]; then
|
||||||
|
if [ "$(uname -m)" != "x86_64" ]; then
|
||||||
|
echo "In containerized systems, this installer supports only the x86_64 architecture.
|
||||||
|
The system runs on $(uname -m) and is unsupported."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
# TUN device is required to use BoringTun if running inside a container
|
||||||
|
if [[ ! -e /dev/net/tun ]] || ! ( exec 7<>/dev/net/tun ) 2>/dev/null; then
|
||||||
|
echo "The system does not have the TUN device available.
|
||||||
|
TUN needs to be enabled before running this installer."
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
new_client_dns () {
|
||||||
|
echo "Select a DNS server for the client:"
|
||||||
|
echo " 1) Current system resolvers"
|
||||||
|
echo " 2) Google"
|
||||||
|
echo " 3) 1.1.1.1"
|
||||||
|
echo " 4) OpenDNS"
|
||||||
|
echo " 5) Quad9"
|
||||||
|
echo " 6) AdGuard"
|
||||||
|
read -p "DNS server [1]: " dns
|
||||||
|
until [[ -z "$dns" || "$dns" =~ ^[1-6]$ ]]; do
|
||||||
|
echo "$dns: invalid selection."
|
||||||
|
read -p "DNS server [1]: " dns
|
||||||
|
done
|
||||||
|
# DNS
|
||||||
|
case "$dns" in
|
||||||
|
1|"")
|
||||||
|
# Locate the proper resolv.conf
|
||||||
|
# Needed for systems running systemd-resolved
|
||||||
|
if grep -q '^nameserver 127.0.0.53' "/etc/resolv.conf"; then
|
||||||
|
resolv_conf="/run/systemd/resolve/resolv.conf"
|
||||||
|
else
|
||||||
|
resolv_conf="/etc/resolv.conf"
|
||||||
|
fi
|
||||||
|
# Extract nameservers and provide them in the required format
|
||||||
|
dns=$(grep -v '^#\|^;' "$resolv_conf" | grep '^nameserver' | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | xargs | sed -e 's/ /, /g')
|
||||||
|
;;
|
||||||
|
2)
|
||||||
|
dns="8.8.8.8, 8.8.4.4"
|
||||||
|
;;
|
||||||
|
3)
|
||||||
|
dns="1.1.1.1, 1.0.0.1"
|
||||||
|
;;
|
||||||
|
4)
|
||||||
|
dns="208.67.222.222, 208.67.220.220"
|
||||||
|
;;
|
||||||
|
5)
|
||||||
|
dns="9.9.9.9, 149.112.112.112"
|
||||||
|
;;
|
||||||
|
6)
|
||||||
|
dns="94.140.14.14, 94.140.15.15"
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
}
|
||||||
|
|
||||||
|
new_client_setup () {
|
||||||
|
# Given a list of the assigned internal IPv4 addresses, obtain the lowest still
|
||||||
|
# available octet. Important to start looking at 2, because 1 is our gateway.
|
||||||
|
octet=2
|
||||||
|
while grep AllowedIPs /etc/wireguard/wg0.conf | cut -d "." -f 4 | cut -d "/" -f 1 | grep -q "$octet"; do
|
||||||
|
(( octet++ ))
|
||||||
|
done
|
||||||
|
# Don't break the WireGuard configuration in case the address space is full
|
||||||
|
if [[ "$octet" -eq 255 ]]; then
|
||||||
|
echo "253 clients are already configured. The WireGuard internal subnet is full!"
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
key=$(wg genkey)
|
||||||
|
psk=$(wg genpsk)
|
||||||
|
# Configure client in the server
|
||||||
|
cat << EOF >> /etc/wireguard/wg0.conf
|
||||||
|
# BEGIN_PEER $client
|
||||||
|
[Peer]
|
||||||
|
PublicKey = $(wg pubkey <<< $key)
|
||||||
|
PresharedKey = $psk
|
||||||
|
AllowedIPs = 10.7.0.$octet/32$(grep -q 'fddd:2c4:2c4:2c4::1' /etc/wireguard/wg0.conf && echo ", fddd:2c4:2c4:2c4::$octet/128")
|
||||||
|
# END_PEER $client
|
||||||
|
EOF
|
||||||
|
# Create client configuration
|
||||||
|
cat << EOF > ~/"$client".conf
|
||||||
|
[Interface]
|
||||||
|
Address = 10.7.0.$octet/24$(grep -q 'fddd:2c4:2c4:2c4::1' /etc/wireguard/wg0.conf && echo ", fddd:2c4:2c4:2c4::$octet/64")
|
||||||
|
DNS = $dns
|
||||||
|
PrivateKey = $key
|
||||||
|
|
||||||
|
[Peer]
|
||||||
|
PublicKey = $(grep PrivateKey /etc/wireguard/wg0.conf | cut -d " " -f 3 | wg pubkey)
|
||||||
|
PresharedKey = $psk
|
||||||
|
AllowedIPs = 0.0.0.0/0, ::/0
|
||||||
|
Endpoint = $(grep '^# ENDPOINT' /etc/wireguard/wg0.conf | cut -d " " -f 3):$(grep ListenPort /etc/wireguard/wg0.conf | cut -d " " -f 3)
|
||||||
|
PersistentKeepalive = 25
|
||||||
|
EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
if [[ ! -e /etc/wireguard/wg0.conf ]]; then
|
||||||
|
# Detect some Debian minimal setups where neither wget nor curl are installed
|
||||||
|
if ! hash wget 2>/dev/null && ! hash curl 2>/dev/null; then
|
||||||
|
echo "Wget is required to use this installer."
|
||||||
|
read -n1 -r -p "Press any key to install Wget and continue..."
|
||||||
|
apt-get update
|
||||||
|
apt-get install -y wget
|
||||||
|
fi
|
||||||
|
clear
|
||||||
|
echo 'Welcome to this WireGuard road warrior installer!'
|
||||||
|
# If system has a single IPv4, it is selected automatically. Else, ask the user
|
||||||
|
if [[ $(ip -4 addr | grep inet | grep -vEc '127(\.[0-9]{1,3}){3}') -eq 1 ]]; then
|
||||||
|
ip=$(ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}')
|
||||||
|
else
|
||||||
|
number_of_ip=$(ip -4 addr | grep inet | grep -vEc '127(\.[0-9]{1,3}){3}')
|
||||||
|
echo
|
||||||
|
echo "Which IPv4 address should be used?"
|
||||||
|
ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | nl -s ') '
|
||||||
|
read -p "IPv4 address [1]: " ip_number
|
||||||
|
until [[ -z "$ip_number" || "$ip_number" =~ ^[0-9]+$ && "$ip_number" -le "$number_of_ip" ]]; do
|
||||||
|
echo "$ip_number: invalid selection."
|
||||||
|
read -p "IPv4 address [1]: " ip_number
|
||||||
|
done
|
||||||
|
[[ -z "$ip_number" ]] && ip_number="1"
|
||||||
|
ip=$(ip -4 addr | grep inet | grep -vE '127(\.[0-9]{1,3}){3}' | cut -d '/' -f 1 | grep -oE '[0-9]{1,3}(\.[0-9]{1,3}){3}' | sed -n "$ip_number"p)
|
||||||
|
fi
|
||||||
|
# If $ip is a private IP address, the server must be behind NAT
|
||||||
|
if echo "$ip" | grep -qE '^(10\.|172\.1[6789]\.|172\.2[0-9]\.|172\.3[01]\.|192\.168)'; then
|
||||||
|
echo
|
||||||
|
echo "This server is behind NAT. What is the public IPv4 address or hostname?"
|
||||||
|
# Get public IP and sanitize with grep
|
||||||
|
get_public_ip=$(grep -m 1 -oE '^[0-9]{1,3}(\.[0-9]{1,3}){3}$' <<< "$(wget -T 10 -t 1 -4qO- "http://ip1.dynupdate.no-ip.com/" || curl -m 10 -4Ls "http://ip1.dynupdate.no-ip.com/")")
|
||||||
|
read -p "Public IPv4 address / hostname [$get_public_ip]: " public_ip
|
||||||
|
# If the checkip service is unavailable and user didn't provide input, ask again
|
||||||
|
until [[ -n "$get_public_ip" || -n "$public_ip" ]]; do
|
||||||
|
echo "Invalid input."
|
||||||
|
read -p "Public IPv4 address / hostname: " public_ip
|
||||||
|
done
|
||||||
|
[[ -z "$public_ip" ]] && public_ip="$get_public_ip"
|
||||||
|
fi
|
||||||
|
# If system has a single IPv6, it is selected automatically
|
||||||
|
if [[ $(ip -6 addr | grep -c 'inet6 [23]') -eq 1 ]]; then
|
||||||
|
ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}')
|
||||||
|
fi
|
||||||
|
# If system has multiple IPv6, ask the user to select one
|
||||||
|
if [[ $(ip -6 addr | grep -c 'inet6 [23]') -gt 1 ]]; then
|
||||||
|
number_of_ip6=$(ip -6 addr | grep -c 'inet6 [23]')
|
||||||
|
echo
|
||||||
|
echo "Which IPv6 address should be used?"
|
||||||
|
ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | nl -s ') '
|
||||||
|
read -p "IPv6 address [1]: " ip6_number
|
||||||
|
until [[ -z "$ip6_number" || "$ip6_number" =~ ^[0-9]+$ && "$ip6_number" -le "$number_of_ip6" ]]; do
|
||||||
|
echo "$ip6_number: invalid selection."
|
||||||
|
read -p "IPv6 address [1]: " ip6_number
|
||||||
|
done
|
||||||
|
[[ -z "$ip6_number" ]] && ip6_number="1"
|
||||||
|
ip6=$(ip -6 addr | grep 'inet6 [23]' | cut -d '/' -f 1 | grep -oE '([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}' | sed -n "$ip6_number"p)
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "What port should WireGuard listen to?"
|
||||||
|
read -p "Port [51820]: " port
|
||||||
|
until [[ -z "$port" || "$port" =~ ^[0-9]+$ && "$port" -le 65535 ]]; do
|
||||||
|
echo "$port: invalid port."
|
||||||
|
read -p "Port [51820]: " port
|
||||||
|
done
|
||||||
|
[[ -z "$port" ]] && port="51820"
|
||||||
|
echo
|
||||||
|
echo "Enter a name for the first client:"
|
||||||
|
read -p "Name [client]: " unsanitized_client
|
||||||
|
# Allow a limited set of characters to avoid conflicts
|
||||||
|
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
|
||||||
|
[[ -z "$client" ]] && client="client"
|
||||||
|
echo
|
||||||
|
new_client_dns
|
||||||
|
# Set up automatic updates for BoringTun if the user is fine with that
|
||||||
|
if [[ "$is_container" -eq 0 ]]; then
|
||||||
|
echo
|
||||||
|
echo "BoringTun will be installed to set up WireGuard in the system."
|
||||||
|
read -p "Should automatic updates be enabled for it? [Y/n]: " boringtun_updates
|
||||||
|
until [[ "$boringtun_updates" =~ ^[yYnN]*$ ]]; do
|
||||||
|
echo "$remove: invalid selection."
|
||||||
|
read -p "Should automatic updates be enabled for it? [Y/n]: " boringtun_updates
|
||||||
|
done
|
||||||
|
[[ -z "$boringtun_updates" ]] && boringtun_updates="y"
|
||||||
|
if [[ "$boringtun_updates" =~ ^[yY]$ ]]; then
|
||||||
|
if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
|
||||||
|
cron="cronie"
|
||||||
|
elif [[ "$os" == "debian" || "$os" == "ubuntu" ]]; then
|
||||||
|
cron="cron"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "WireGuard installation is ready to begin."
|
||||||
|
# Install a firewall if firewalld or iptables are not already available
|
||||||
|
if ! systemctl is-active --quiet firewalld.service && ! hash iptables 2>/dev/null; then
|
||||||
|
if [[ "$os" == "centos" || "$os" == "fedora" ]]; then
|
||||||
|
firewall="firewalld"
|
||||||
|
# We don't want to silently enable firewalld, so we give a subtle warning
|
||||||
|
# If the user continues, firewalld will be installed and enabled during setup
|
||||||
|
echo "firewalld, which is required to manage routing tables, will also be installed."
|
||||||
|
elif [[ "$os" == "debian" || "$os" == "ubuntu" ]]; then
|
||||||
|
# iptables is way less invasive than firewalld so no warning is given
|
||||||
|
firewall="iptables"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
read -n1 -r -p "Press any key to continue..."
|
||||||
|
# Install WireGuard
|
||||||
|
# If not running inside a container, set up the WireGuard kernel module
|
||||||
|
if [[ ! "$is_container" -eq 0 ]]; then
|
||||||
|
if [[ "$os" == "ubuntu" ]]; then
|
||||||
|
# Ubuntu
|
||||||
|
apt-get update
|
||||||
|
apt-get install -y wireguard qrencode $firewall
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -ge 11 ]]; then
|
||||||
|
# Debian 11 or higher
|
||||||
|
apt-get update
|
||||||
|
apt-get install -y wireguard qrencode $firewall
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -eq 10 ]]; then
|
||||||
|
# Debian 10
|
||||||
|
if ! grep -qs '^deb .* buster-backports main' /etc/apt/sources.list /etc/apt/sources.list.d/*.list; then
|
||||||
|
echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
|
||||||
|
fi
|
||||||
|
apt-get update
|
||||||
|
# Try to install kernel headers for the running kernel and avoid a reboot. This
|
||||||
|
# can fail, so it's important to run separately from the other apt-get command.
|
||||||
|
apt-get install -y linux-headers-"$(uname -r)"
|
||||||
|
# There are cleaner ways to find out the $architecture, but we require an
|
||||||
|
# specific format for the package name and this approach provides what we need.
|
||||||
|
architecture=$(dpkg --get-selections 'linux-image-*-*' | cut -f 1 | grep -oE '[^-]*$' -m 1)
|
||||||
|
# linux-headers-$architecture points to the latest headers. We install it
|
||||||
|
# because if the system has an outdated kernel, there is no guarantee that old
|
||||||
|
# headers were still downloadable and to provide suitable headers for future
|
||||||
|
# kernel updates.
|
||||||
|
apt-get install -y linux-headers-"$architecture"
|
||||||
|
apt-get install -y wireguard qrencode $firewall
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 8 ]]; then
|
||||||
|
# CentOS 8
|
||||||
|
dnf install -y epel-release elrepo-release
|
||||||
|
dnf install -y kmod-wireguard wireguard-tools qrencode $firewall
|
||||||
|
mkdir -p /etc/wireguard/
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 7 ]]; then
|
||||||
|
# CentOS 7
|
||||||
|
yum install -y epel-release https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm
|
||||||
|
yum install -y yum-plugin-elrepo
|
||||||
|
yum install -y kmod-wireguard wireguard-tools qrencode $firewall
|
||||||
|
mkdir -p /etc/wireguard/
|
||||||
|
elif [[ "$os" == "fedora" ]]; then
|
||||||
|
# Fedora
|
||||||
|
dnf install -y wireguard-tools qrencode $firewall
|
||||||
|
mkdir -p /etc/wireguard/
|
||||||
|
fi
|
||||||
|
# Else, we are inside a container and BoringTun needs to be used
|
||||||
|
else
|
||||||
|
# Install required packages
|
||||||
|
if [[ "$os" == "ubuntu" ]]; then
|
||||||
|
# Ubuntu
|
||||||
|
apt-get update
|
||||||
|
apt-get install -y qrencode ca-certificates $cron $firewall
|
||||||
|
apt-get install -y wireguard-tools --no-install-recommends
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -ge 11 ]]; then
|
||||||
|
# Debian 11 or higher
|
||||||
|
apt-get update
|
||||||
|
apt-get install -y qrencode ca-certificates $cron $firewall
|
||||||
|
apt-get install -y wireguard-tools --no-install-recommends
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -eq 10 ]]; then
|
||||||
|
# Debian 10
|
||||||
|
if ! grep -qs '^deb .* buster-backports main' /etc/apt/sources.list /etc/apt/sources.list.d/*.list; then
|
||||||
|
echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
|
||||||
|
fi
|
||||||
|
apt-get update
|
||||||
|
apt-get install -y qrencode ca-certificates $cron $firewall
|
||||||
|
apt-get install -y wireguard-tools --no-install-recommends
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 8 ]]; then
|
||||||
|
# CentOS 8
|
||||||
|
dnf install -y epel-release
|
||||||
|
dnf install -y wireguard-tools qrencode ca-certificates tar $cron $firewall
|
||||||
|
mkdir -p /etc/wireguard/
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 7 ]]; then
|
||||||
|
# CentOS 7
|
||||||
|
yum install -y epel-release
|
||||||
|
yum install -y wireguard-tools qrencode ca-certificates tar $cron $firewall
|
||||||
|
mkdir -p /etc/wireguard/
|
||||||
|
elif [[ "$os" == "fedora" ]]; then
|
||||||
|
# Fedora
|
||||||
|
dnf install -y wireguard-tools qrencode ca-certificates tar $cron $firewall
|
||||||
|
mkdir -p /etc/wireguard/
|
||||||
|
fi
|
||||||
|
# Grab the BoringTun binary using wget or curl and extract into the right place.
|
||||||
|
# Don't use this service elsewhere without permission! Contact me before you do!
|
||||||
|
{ wget -qO- https://wg.nyr.be/1/latest/download 2>/dev/null || curl -sL https://wg.nyr.be/1/latest/download ; } | tar xz -C /usr/local/sbin/ --wildcards 'boringtun-*/boringtun' --strip-components 1
|
||||||
|
# Configure wg-quick to use BoringTun
|
||||||
|
mkdir /etc/systemd/system/wg-quick@wg0.service.d/ 2>/dev/null
|
||||||
|
echo "[Service]
|
||||||
|
Environment=WG_QUICK_USERSPACE_IMPLEMENTATION=boringtun
|
||||||
|
Environment=WG_SUDO=1" > /etc/systemd/system/wg-quick@wg0.service.d/boringtun.conf
|
||||||
|
if [[ -n "$cron" ]] && [[ "$os" == "centos" || "$os" == "fedora" ]]; then
|
||||||
|
systemctl enable --now crond.service
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
# If firewalld was just installed, enable it
|
||||||
|
if [[ "$firewall" == "firewalld" ]]; then
|
||||||
|
systemctl enable --now firewalld.service
|
||||||
|
fi
|
||||||
|
# Generate wg0.conf
|
||||||
|
cat << EOF > /etc/wireguard/wg0.conf
|
||||||
|
# Do not alter the commented lines
|
||||||
|
# They are used by wireguard-install
|
||||||
|
# ENDPOINT $([[ -n "$public_ip" ]] && echo "$public_ip" || echo "$ip")
|
||||||
|
|
||||||
|
[Interface]
|
||||||
|
Address = 10.7.0.1/24$([[ -n "$ip6" ]] && echo ", fddd:2c4:2c4:2c4::1/64")
|
||||||
|
PrivateKey = $(wg genkey)
|
||||||
|
ListenPort = $port
|
||||||
|
|
||||||
|
EOF
|
||||||
|
chmod 600 /etc/wireguard/wg0.conf
|
||||||
|
# Enable net.ipv4.ip_forward for the system
|
||||||
|
echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-wireguard-forward.conf
|
||||||
|
# Enable without waiting for a reboot or service restart
|
||||||
|
echo 1 > /proc/sys/net/ipv4/ip_forward
|
||||||
|
if [[ -n "$ip6" ]]; then
|
||||||
|
# Enable net.ipv6.conf.all.forwarding for the system
|
||||||
|
echo "net.ipv6.conf.all.forwarding=1" >> /etc/sysctl.d/99-wireguard-forward.conf
|
||||||
|
# Enable without waiting for a reboot or service restart
|
||||||
|
echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
|
||||||
|
fi
|
||||||
|
if systemctl is-active --quiet firewalld.service; then
|
||||||
|
# Using both permanent and not permanent rules to avoid a firewalld
|
||||||
|
# reload.
|
||||||
|
firewall-cmd --add-port="$port"/udp
|
||||||
|
firewall-cmd --zone=trusted --add-source=10.7.0.0/24
|
||||||
|
firewall-cmd --permanent --add-port="$port"/udp
|
||||||
|
firewall-cmd --permanent --zone=trusted --add-source=10.7.0.0/24
|
||||||
|
# Set NAT for the VPN subnet
|
||||||
|
firewall-cmd --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||||||
|
firewall-cmd --permanent --direct --add-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||||||
|
if [[ -n "$ip6" ]]; then
|
||||||
|
firewall-cmd --zone=trusted --add-source=fddd:2c4:2c4:2c4::/64
|
||||||
|
firewall-cmd --permanent --zone=trusted --add-source=fddd:2c4:2c4:2c4::/64
|
||||||
|
firewall-cmd --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||||||
|
firewall-cmd --permanent --direct --add-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
# Create a service to set up persistent iptables rules
|
||||||
|
iptables_path=$(command -v iptables)
|
||||||
|
ip6tables_path=$(command -v ip6tables)
|
||||||
|
# nf_tables is not available as standard in OVZ kernels. So use iptables-legacy
|
||||||
|
# if we are in OVZ, with a nf_tables backend and iptables-legacy is available.
|
||||||
|
if [[ $(systemd-detect-virt) == "openvz" ]] && readlink -f "$(command -v iptables)" | grep -q "nft" && hash iptables-legacy 2>/dev/null; then
|
||||||
|
iptables_path=$(command -v iptables-legacy)
|
||||||
|
ip6tables_path=$(command -v ip6tables-legacy)
|
||||||
|
fi
|
||||||
|
echo "[Unit]
|
||||||
|
Before=network.target
|
||||||
|
[Service]
|
||||||
|
Type=oneshot
|
||||||
|
ExecStart=$iptables_path -t nat -A POSTROUTING -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to $ip
|
||||||
|
ExecStart=$iptables_path -I INPUT -p udp --dport $port -j ACCEPT
|
||||||
|
ExecStart=$iptables_path -I FORWARD -s 10.7.0.0/24 -j ACCEPT
|
||||||
|
ExecStart=$iptables_path -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||||||
|
ExecStop=$iptables_path -t nat -D POSTROUTING -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to $ip
|
||||||
|
ExecStop=$iptables_path -D INPUT -p udp --dport $port -j ACCEPT
|
||||||
|
ExecStop=$iptables_path -D FORWARD -s 10.7.0.0/24 -j ACCEPT
|
||||||
|
ExecStop=$iptables_path -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" > /etc/systemd/system/wg-iptables.service
|
||||||
|
if [[ -n "$ip6" ]]; then
|
||||||
|
echo "ExecStart=$ip6tables_path -t nat -A POSTROUTING -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to $ip6
|
||||||
|
ExecStart=$ip6tables_path -I FORWARD -s fddd:2c4:2c4:2c4::/64 -j ACCEPT
|
||||||
|
ExecStart=$ip6tables_path -I FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
|
||||||
|
ExecStop=$ip6tables_path -t nat -D POSTROUTING -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to $ip6
|
||||||
|
ExecStop=$ip6tables_path -D FORWARD -s fddd:2c4:2c4:2c4::/64 -j ACCEPT
|
||||||
|
ExecStop=$ip6tables_path -D FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT" >> /etc/systemd/system/wg-iptables.service
|
||||||
|
fi
|
||||||
|
echo "RemainAfterExit=yes
|
||||||
|
[Install]
|
||||||
|
WantedBy=multi-user.target" >> /etc/systemd/system/wg-iptables.service
|
||||||
|
systemctl enable --now wg-iptables.service
|
||||||
|
fi
|
||||||
|
# Generates the custom client.conf
|
||||||
|
new_client_setup
|
||||||
|
# Enable and start the wg-quick service
|
||||||
|
systemctl enable --now wg-quick@wg0.service
|
||||||
|
# Set up automatic updates for BoringTun if the user wanted to
|
||||||
|
if [[ "$boringtun_updates" =~ ^[yY]$ ]]; then
|
||||||
|
# Deploy upgrade script
|
||||||
|
cat << 'EOF' > /usr/local/sbin/boringtun-upgrade
|
||||||
|
#!/bin/bash
|
||||||
|
latest=$(wget -qO- https://wg.nyr.be/1/latest 2>/dev/null || curl -sL https://wg.nyr.be/1/latest 2>/dev/null)
|
||||||
|
# If server did not provide an appropriate response, exit
|
||||||
|
if ! head -1 <<< "$latest" | grep -qiE "^boringtun.+[0-9]+\.[0-9]+.*$"; then
|
||||||
|
echo "Update server unavailable"
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
current=$(boringtun -V)
|
||||||
|
if [[ "$current" != "$latest" ]]; then
|
||||||
|
download="https://wg.nyr.be/1/latest/download"
|
||||||
|
xdir=$(mktemp -d)
|
||||||
|
# If download and extraction are successful, upgrade the boringtun binary
|
||||||
|
if { wget -qO- "$download" 2>/dev/null || curl -sL "$download" ; } | tar xz -C "$xdir" --wildcards "boringtun-*/boringtun" --strip-components 1; then
|
||||||
|
systemctl stop wg-quick@wg0.service
|
||||||
|
rm -f /usr/local/sbin/boringtun
|
||||||
|
mv "$xdir"/boringtun /usr/local/sbin/boringtun
|
||||||
|
systemctl start wg-quick@wg0.service
|
||||||
|
echo "Succesfully updated to $(boringtun -V)"
|
||||||
|
else
|
||||||
|
echo "boringtun update failed"
|
||||||
|
fi
|
||||||
|
rm -rf "$xdir"
|
||||||
|
else
|
||||||
|
echo "$current is up to date"
|
||||||
|
fi
|
||||||
|
EOF
|
||||||
|
chmod +x /usr/local/sbin/boringtun-upgrade
|
||||||
|
# Add cron job to run the updater daily at a random time between 3:00 and 5:59
|
||||||
|
{ crontab -l 2>/dev/null; echo "$(( $RANDOM % 60 )) $(( $RANDOM % 3 + 3 )) * * * /usr/local/sbin/boringtun-upgrade &>/dev/null" ; } | crontab -
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
qrencode -t UTF8 < ~/"$client.conf"
|
||||||
|
echo -e '\xE2\x86\x91 That is a QR code containing the client configuration.'
|
||||||
|
echo
|
||||||
|
# If the kernel module didn't load, system probably had an outdated kernel
|
||||||
|
# We'll try to help, but will not will not force a kernel upgrade upon the user
|
||||||
|
if [[ ! "$is_container" -eq 0 ]] && ! modprobe -nq wireguard; then
|
||||||
|
echo "Warning!"
|
||||||
|
echo "Installation was finished, but the WireGuard kernel module could not load."
|
||||||
|
if [[ "$os" == "ubuntu" && "$os_version" -eq 1804 ]]; then
|
||||||
|
echo 'Upgrade the kernel and headers with "apt-get install linux-generic" and restart.'
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -eq 10 ]]; then
|
||||||
|
echo "Upgrade the kernel with \"apt-get install linux-image-$architecture\" and restart."
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -le 8 ]]; then
|
||||||
|
echo "Reboot the system to load the most recent kernel."
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
echo "Finished!"
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "The client configuration is available in:" ~/"$client.conf"
|
||||||
|
echo "New clients can be added by running this script again."
|
||||||
|
else
|
||||||
|
clear
|
||||||
|
echo "WireGuard is already installed."
|
||||||
|
echo
|
||||||
|
echo "Select an option:"
|
||||||
|
echo " 1) Add a new client"
|
||||||
|
echo " 2) Remove an existing client"
|
||||||
|
echo " 3) Remove WireGuard"
|
||||||
|
echo " 4) Exit"
|
||||||
|
read -p "Option: " option
|
||||||
|
until [[ "$option" =~ ^[1-4]$ ]]; do
|
||||||
|
echo "$option: invalid selection."
|
||||||
|
read -p "Option: " option
|
||||||
|
done
|
||||||
|
case "$option" in
|
||||||
|
1)
|
||||||
|
echo
|
||||||
|
echo "Provide a name for the client:"
|
||||||
|
read -p "Name: " unsanitized_client
|
||||||
|
# Allow a limited set of characters to avoid conflicts
|
||||||
|
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
|
||||||
|
while [[ -z "$client" ]] || grep -q "^# BEGIN_PEER $client$" /etc/wireguard/wg0.conf; do
|
||||||
|
echo "$client: invalid name."
|
||||||
|
read -p "Name: " unsanitized_client
|
||||||
|
client=$(sed 's/[^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-]/_/g' <<< "$unsanitized_client")
|
||||||
|
done
|
||||||
|
echo
|
||||||
|
new_client_dns
|
||||||
|
new_client_setup
|
||||||
|
# Append new client configuration to the WireGuard interface
|
||||||
|
wg addconf wg0 <(sed -n "/^# BEGIN_PEER $client/,/^# END_PEER $client/p" /etc/wireguard/wg0.conf)
|
||||||
|
echo
|
||||||
|
qrencode -t UTF8 < ~/"$client.conf"
|
||||||
|
echo -e '\xE2\x86\x91 That is a QR code containing your client configuration.'
|
||||||
|
echo
|
||||||
|
echo "$client added. Configuration available in:" ~/"$client.conf"
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
2)
|
||||||
|
# This option could be documented a bit better and maybe even be simplified
|
||||||
|
# ...but what can I say, I want some sleep too
|
||||||
|
number_of_clients=$(grep -c '^# BEGIN_PEER' /etc/wireguard/wg0.conf)
|
||||||
|
if [[ "$number_of_clients" = 0 ]]; then
|
||||||
|
echo
|
||||||
|
echo "There are no existing clients!"
|
||||||
|
exit
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "Select the client to remove:"
|
||||||
|
grep '^# BEGIN_PEER' /etc/wireguard/wg0.conf | cut -d ' ' -f 3 | nl -s ') '
|
||||||
|
read -p "Client: " client_number
|
||||||
|
until [[ "$client_number" =~ ^[0-9]+$ && "$client_number" -le "$number_of_clients" ]]; do
|
||||||
|
echo "$client_number: invalid selection."
|
||||||
|
read -p "Client: " client_number
|
||||||
|
done
|
||||||
|
client=$(grep '^# BEGIN_PEER' /etc/wireguard/wg0.conf | cut -d ' ' -f 3 | sed -n "$client_number"p)
|
||||||
|
echo
|
||||||
|
read -p "Confirm $client removal? [y/N]: " remove
|
||||||
|
until [[ "$remove" =~ ^[yYnN]*$ ]]; do
|
||||||
|
echo "$remove: invalid selection."
|
||||||
|
read -p "Confirm $client removal? [y/N]: " remove
|
||||||
|
done
|
||||||
|
if [[ "$remove" =~ ^[yY]$ ]]; then
|
||||||
|
# The following is the right way to avoid disrupting other active connections:
|
||||||
|
# Remove from the live interface
|
||||||
|
wg set wg0 peer "$(sed -n "/^# BEGIN_PEER $client$/,\$p" /etc/wireguard/wg0.conf | grep -m 1 PublicKey | cut -d " " -f 3)" remove
|
||||||
|
# Remove from the configuration file
|
||||||
|
sed -i "/^# BEGIN_PEER $client/,/^# END_PEER $client/d" /etc/wireguard/wg0.conf
|
||||||
|
echo
|
||||||
|
echo "$client removed!"
|
||||||
|
else
|
||||||
|
echo
|
||||||
|
echo "$client removal aborted!"
|
||||||
|
fi
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
3)
|
||||||
|
echo
|
||||||
|
read -p "Confirm WireGuard removal? [y/N]: " remove
|
||||||
|
until [[ "$remove" =~ ^[yYnN]*$ ]]; do
|
||||||
|
echo "$remove: invalid selection."
|
||||||
|
read -p "Confirm WireGuard removal? [y/N]: " remove
|
||||||
|
done
|
||||||
|
if [[ "$remove" =~ ^[yY]$ ]]; then
|
||||||
|
port=$(grep '^ListenPort' /etc/wireguard/wg0.conf | cut -d " " -f 3)
|
||||||
|
if systemctl is-active --quiet firewalld.service; then
|
||||||
|
ip=$(firewall-cmd --direct --get-rules ipv4 nat POSTROUTING | grep '\-s 10.7.0.0/24 '"'"'!'"'"' -d 10.7.0.0/24' | grep -oE '[^ ]+$')
|
||||||
|
# Using both permanent and not permanent rules to avoid a firewalld reload.
|
||||||
|
firewall-cmd --remove-port="$port"/udp
|
||||||
|
firewall-cmd --zone=trusted --remove-source=10.7.0.0/24
|
||||||
|
firewall-cmd --permanent --remove-port="$port"/udp
|
||||||
|
firewall-cmd --permanent --zone=trusted --remove-source=10.7.0.0/24
|
||||||
|
firewall-cmd --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||||||
|
firewall-cmd --permanent --direct --remove-rule ipv4 nat POSTROUTING 0 -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to "$ip"
|
||||||
|
if grep -qs 'fddd:2c4:2c4:2c4::1/64' /etc/wireguard/wg0.conf; then
|
||||||
|
ip6=$(firewall-cmd --direct --get-rules ipv6 nat POSTROUTING | grep '\-s fddd:2c4:2c4:2c4::/64 '"'"'!'"'"' -d fddd:2c4:2c4:2c4::/64' | grep -oE '[^ ]+$')
|
||||||
|
firewall-cmd --zone=trusted --remove-source=fddd:2c4:2c4:2c4::/64
|
||||||
|
firewall-cmd --permanent --zone=trusted --remove-source=fddd:2c4:2c4:2c4::/64
|
||||||
|
firewall-cmd --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||||||
|
firewall-cmd --permanent --direct --remove-rule ipv6 nat POSTROUTING 0 -s fddd:2c4:2c4:2c4::/64 ! -d fddd:2c4:2c4:2c4::/64 -j SNAT --to "$ip6"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
systemctl disable --now wg-iptables.service
|
||||||
|
rm -f /etc/systemd/system/wg-iptables.service
|
||||||
|
fi
|
||||||
|
systemctl disable --now wg-quick@wg0.service
|
||||||
|
rm -f /etc/systemd/system/wg-quick@wg0.service.d/boringtun.conf
|
||||||
|
rm -f /etc/sysctl.d/99-wireguard-forward.conf
|
||||||
|
# Different packages were installed if the system was containerized or not
|
||||||
|
if [[ ! "$is_container" -eq 0 ]]; then
|
||||||
|
if [[ "$os" == "ubuntu" ]]; then
|
||||||
|
# Ubuntu
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
apt-get remove --purge -y wireguard wireguard-tools
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -ge 11 ]]; then
|
||||||
|
# Debian 11 or higher
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
apt-get remove --purge -y wireguard wireguard-tools
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -eq 10 ]]; then
|
||||||
|
# Debian 10
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
apt-get remove --purge -y wireguard wireguard-dkms wireguard-tools
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 8 ]]; then
|
||||||
|
# CentOS 8
|
||||||
|
dnf remove -y kmod-wireguard wireguard-tools
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 7 ]]; then
|
||||||
|
# CentOS 7
|
||||||
|
yum remove -y kmod-wireguard wireguard-tools
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
elif [[ "$os" == "fedora" ]]; then
|
||||||
|
# Fedora
|
||||||
|
dnf remove -y wireguard-tools
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
{ crontab -l 2>/dev/null | grep -v '/usr/local/sbin/boringtun-upgrade' ; } | crontab -
|
||||||
|
if [[ "$os" == "ubuntu" ]]; then
|
||||||
|
# Ubuntu
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
apt-get remove --purge -y wireguard-tools
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -ge 11 ]]; then
|
||||||
|
# Debian 11 or higher
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
apt-get remove --purge -y wireguard-tools
|
||||||
|
elif [[ "$os" == "debian" && "$os_version" -eq 10 ]]; then
|
||||||
|
# Debian 10
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
apt-get remove --purge -y wireguard-tools
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 8 ]]; then
|
||||||
|
# CentOS 8
|
||||||
|
dnf remove -y wireguard-tools
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
elif [[ "$os" == "centos" && "$os_version" -eq 7 ]]; then
|
||||||
|
# CentOS 7
|
||||||
|
yum remove -y wireguard-tools
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
elif [[ "$os" == "fedora" ]]; then
|
||||||
|
# Fedora
|
||||||
|
dnf remove -y wireguard-tools
|
||||||
|
rm -rf /etc/wireguard/
|
||||||
|
fi
|
||||||
|
rm -f /usr/local/sbin/boringtun /usr/local/sbin/boringtun-upgrade
|
||||||
|
fi
|
||||||
|
echo
|
||||||
|
echo "WireGuard removed!"
|
||||||
|
else
|
||||||
|
echo
|
||||||
|
echo "WireGuard removal aborted!"
|
||||||
|
fi
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
4)
|
||||||
|
exit
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
Loading…
Reference in New Issue