mirror of
https://github.com/angristan/wireguard-install.git
synced 2024-11-24 05:56:02 +03:00
Refactor script (#92)
- cleaned some minor code - use IPv6 if IPv4 isn't available - add input validations, fixes #86 . - assign secondary DNS to primary DNS value if it's empty. Fixes #68 - use `$SERVER_WG_IPV4` and `$SERVER_WG_IPV6` when suggesting the client IP - save user DNS to `params` file and apply it to all clients, removing support for customizing DNS for individual clients. If this is a problem we can add again the code to allow customization but maybe use the sourced DNS as a suggestion for clients that need a different one - add shellcheck ignores, needed for IDE that have shellcheck support - escaped variables to `"${var}"` style - updated README to reflect changes - fixed the kernel mismatch issue on CentOS by updating the kernel https://github.com/angristan/wireguard-install/issues/95#issuecomment-653696198. Fedora might need this change too - Use `firewall-cmd` only if `firewalld` is running. Fixes #95 - Fix the client's subnet mask. Fixes #87 - Save the client configuration in the correct `$HOME`. Fixes #96 Co-authored-by: Chris Lewicki <chris@lewicki.dev> Co-authored-by: Stanislas <angristan@pm.me>
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@ -37,12 +37,6 @@ chmod +x wireguard-install.sh
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It will install WireGuard (kernel module and tools) on the server, configure it, create a systemd service and a client configuration file.
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It will install WireGuard (kernel module and tools) on the server, configure it, create a systemd service and a client configuration file.
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To generate more client files, run the following:
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```sh
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./wireguard-install.sh add-client
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```
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Make sure you choose different IPs for you clients.
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Make sure you choose different IPs for you clients.
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Contributions are welcome!
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Contributions are welcome!
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@ -1,103 +1,37 @@
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#!/bin/bash
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#!/bin/bash
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function addClient() {
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# Secure WireGuard server installer for Debian, Ubuntu, CentOS, Fedora and Arch Linux
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# Load params
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# https://github.com/angristan/wireguard-install
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source /etc/wireguard/params
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if [[ $SERVER_PUB_IP =~ .*:.* ]]; then
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function isRoot() {
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echo "IPv6 Detected"
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if [ "${EUID}" -ne 0 ]; then
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ENDPOINT="[$SERVER_PUB_IP]:$SERVER_PORT"
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else
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echo "IPv4 Detected"
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ENDPOINT="$SERVER_PUB_IP:$SERVER_PORT"
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fi
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CLIENT_WG_IPV4="10.66.66.2"
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read -rp "Client's WireGuard IPv4: " -e -i "$CLIENT_WG_IPV4" CLIENT_WG_IPV4
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CLIENT_WG_IPV6="fd42:42:42::2"
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read -rp "Client's WireGuard IPv6: " -e -i "$CLIENT_WG_IPV6" CLIENT_WG_IPV6
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# Adguard DNS by default
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CLIENT_DNS_1="176.103.130.130"
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read -rp "First DNS resolver to use for the client: " -e -i "$CLIENT_DNS_1" CLIENT_DNS_1
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CLIENT_DNS_2="176.103.130.131"
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read -rp "Second DNS resolver to use for the client: " -e -i "$CLIENT_DNS_2" CLIENT_DNS_2
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CLIENT_NAME=$(
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head /dev/urandom | tr -dc A-Za-z0-9 | head -c 10
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echo ''
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)
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# Generate key pair for the client
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CLIENT_PRIV_KEY=$(wg genkey)
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CLIENT_PUB_KEY=$(echo "$CLIENT_PRIV_KEY" | wg pubkey)
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CLIENT_PRE_SHARED_KEY=$(wg genpsk)
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# Create client file and add the server as a peer
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echo "[Interface]
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PrivateKey = $CLIENT_PRIV_KEY
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Address = $CLIENT_WG_IPV4/24,$CLIENT_WG_IPV6/64
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DNS = $CLIENT_DNS_1,$CLIENT_DNS_2
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[Peer]
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PublicKey = $SERVER_PUB_KEY
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PresharedKey = $CLIENT_PRE_SHARED_KEY
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Endpoint = $ENDPOINT
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AllowedIPs = 0.0.0.0/0,::/0" >>"$HOME/$SERVER_WG_NIC-client-$CLIENT_NAME.conf"
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# Add the client as a peer to the server
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echo -e "\n[Peer]
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PublicKey = $CLIENT_PUB_KEY
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PresharedKey = $CLIENT_PRE_SHARED_KEY
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AllowedIPs = $CLIENT_WG_IPV4/32,$CLIENT_WG_IPV6/128" >>"/etc/wireguard/$SERVER_WG_NIC.conf"
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systemctl restart "wg-quick@$SERVER_WG_NIC"
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echo -e "\nHere is your client config file as a QR Code:"
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qrencode -t ansiutf8 -l L <"$HOME/$SERVER_WG_NIC-client-$CLIENT_NAME.conf"
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echo "It is also available in $HOME/$SERVER_WG_NIC-client-$CLIENT_NAME.conf"
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}
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if [ "$EUID" -ne 0 ]; then
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echo "You need to run this script as root"
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echo "You need to run this script as root"
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exit 1
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exit 1
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fi
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fi
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}
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if [ "$(systemd-detect-virt)" == "openvz" ]; then
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function checkVirt() {
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if [ "$(systemd-detect-virt)" == "openvz" ]; then
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echo "OpenVZ is not supported"
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echo "OpenVZ is not supported"
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exit
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exit 1
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fi
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fi
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if [ "$(systemd-detect-virt)" == "lxc" ]; then
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if [ "$(systemd-detect-virt)" == "lxc" ]; then
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echo "LXC is not supported (yet)."
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echo "LXC is not supported (yet)."
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echo "WireGuard can technically run in an LXC container,"
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echo "WireGuard can technically run in an LXC container,"
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echo "but the kernel module has to be installed on the host,"
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echo "but the kernel module has to be installed on the host,"
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echo "the container has to be run with some specific parameters"
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echo "the container has to be run with some specific parameters"
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echo "and only the tools need to be installed in the container."
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echo "and only the tools need to be installed in the container."
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exit
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fi
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if [[ $1 == "add-client" ]]; then
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if [[ -e /etc/wireguard/params ]]; then
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addClient
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exit 0
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else
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echo "Please install and configure WireGuard first."
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exit 1
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exit 1
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fi
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fi
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elif [[ -e /etc/wireguard/params ]]; then
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}
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echo "WireGuard is already installed. Run with 'add-client' to add a client."
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exit 1
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fi
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# Check OS version
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function checkOS() {
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if [[ -e /etc/debian_version ]]; then
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# Check OS version
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if [[ -e /etc/debian_version ]]; then
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# shellcheck disable=SC1091
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source /etc/os-release
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source /etc/os-release
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OS=$ID # debian or ubuntu
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OS="${ID}" # debian or ubuntu
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if [[ -e /etc/debian_version ]]; then
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if [[ -e /etc/debian_version ]]; then
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if [[ $ID == "debian" || $ID == "raspbian" ]]; then
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if [[ $ID == "debian" || $ID == "raspbian" ]]; then
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if [[ $VERSION_ID -ne 10 ]]; then
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if [[ $VERSION_ID -ne 10 ]]; then
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@ -106,47 +40,96 @@ if [[ -e /etc/debian_version ]]; then
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fi
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fi
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fi
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fi
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fi
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fi
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elif [[ -e /etc/fedora-release ]]; then
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elif [[ -e /etc/fedora-release ]]; then
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# shellcheck disable=SC1091
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source /etc/os-release
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source /etc/os-release
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OS=$ID
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OS="${ID}"
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elif [[ -e /etc/centos-release ]]; then
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elif [[ -e /etc/centos-release ]]; then
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OS=centos
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OS=centos
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elif [[ -e /etc/arch-release ]]; then
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elif [[ -e /etc/arch-release ]]; then
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OS=arch
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OS=arch
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else
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else
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echo "Looks like you aren't running this installer on a Debian, Ubuntu, Fedora, CentOS or Arch Linux system"
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echo "Looks like you aren't running this installer on a Debian, Ubuntu, Fedora, CentOS or Arch Linux system"
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exit 1
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exit 1
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fi
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fi
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}
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# Detect public IPv4 address and pre-fill for the user
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function initialCheck() {
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SERVER_PUB_IPV4=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
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isRoot
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read -rp "IPv4 or IPv6 public address: " -e -i "$SERVER_PUB_IPV4" SERVER_PUB_IP
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checkVirt
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checkOS
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}
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# Detect public interface and pre-fill for the user
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function installQuestions() {
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SERVER_PUB_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
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echo "Welcome to the WireGuard installer!"
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read -rp "Public interface: " -e -i "$SERVER_PUB_NIC" SERVER_PUB_NIC
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echo "The git repository is available at: https://github.com/angristan/wireguard-install"
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echo ""
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echo "I need to ask you a few questions before starting the setup."
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echo "You can leave the default options and just press enter if you are ok with them."
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echo ""
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SERVER_WG_NIC="wg0"
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# Detect public IPv4 or IPv6 address and pre-fill for the user
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read -rp "WireGuard interface name: " -e -i "$SERVER_WG_NIC" SERVER_WG_NIC
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SERVER_PUB_IP=$(ip -4 addr | sed -ne 's|^.* inet \([^/]*\)/.* scope global.*$|\1|p' | head -1)
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if [[ -z "${SERVER_PUB_IP}" ]]; then
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# Detect public IPv6 address
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SERVER_PUB_IP=$(ip -6 addr | sed -ne 's|^.* inet6 \([^/]*\)/.* scope global.*$|\1|p' | head -1)
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fi
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read -rp "IPv4 or IPv6 public address: " -e -i "${SERVER_PUB_IP}" SERVER_PUB_IP
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SERVER_WG_IPV4="10.66.66.1"
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# Detect public interface and pre-fill for the user
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read -rp "Server's WireGuard IPv4: " -e -i "$SERVER_WG_IPV4" SERVER_WG_IPV4
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SERVER_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
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until [[ "${SERVER_PUB_NIC}" =~ ^[a-zA-Z0-9_]+$ ]]; do
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read -rp "Public interface: " -e -i "${SERVER_NIC}" SERVER_PUB_NIC
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done
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SERVER_WG_IPV6="fd42:42:42::1"
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until [[ "${SERVER_WG_NIC}" =~ ^[a-zA-Z0-9_]+$ ]]; do
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read -rp "Server's WireGuard IPv6: " -e -i "$SERVER_WG_IPV6" SERVER_WG_IPV6
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# shellcheck disable=SC2034
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read -rp "WireGuard interface name: " -e -i wg0 SERVER_WG_NIC
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done
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# Generate random number within private ports range
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until [[ "${SERVER_WG_IPV4}" =~ ^([0-9]{1,3}\.){3} ]]; do
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SERVER_PORT=$(shuf -i49152-65535 -n1)
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read -rp "Server's WireGuard IPv4: " -e -i 10.66.66.1 SERVER_WG_IPV4
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read -rp "Server's WireGuard port: " -e -i "$SERVER_PORT" SERVER_PORT
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done
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# Install WireGuard tools and module
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until [[ "${SERVER_WG_IPV6}" =~ ^([a-f0-9]{1,4}:){3,4}: ]]; do
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if [[ $OS == 'ubuntu' ]]; then
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read -rp "Server's WireGuard IPv6: " -e -i fd42:42:42::1 SERVER_WG_IPV6
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done
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# Generate random number within private ports range
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RANDOM_PORT=$(shuf -i49152-65535 -n1)
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until [[ "${SERVER_PORT}" =~ ^[0-9]+$ ]] && [ "${SERVER_PORT}" -ge 1 ] && [ "${SERVER_PORT}" -le 65535 ]; do
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read -rp "Server's WireGuard port [1-65535]: " -e -i "${RANDOM_PORT}" SERVER_PORT
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done
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# Adguard DNS by default
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until [[ "${CLIENT_DNS_1}" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
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read -rp "First DNS resolver to use for the clients: " -e -i 176.103.130.130 CLIENT_DNS_1
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done
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until [[ "${CLIENT_DNS_2}" =~ ^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$ ]]; do
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read -rp "Second DNS resolver to use for the clients (optional): " -e -i 176.103.130.131 CLIENT_DNS_2
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if [[ "${CLIENT_DNS_2}" == "" ]]; then
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CLIENT_DNS_2="${CLIENT_DNS_1}"
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fi
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done
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echo ""
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echo "Okay, that was all I needed. We are ready to setup your WireGuard server now."
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echo "You will be able to generate a client at the end of the installation."
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read -n1 -r -p "Press any key to continue..."
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}
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function installWireGuard() {
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# Run setup questions first
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installQuestions
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# Install WireGuard tools and module
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if [[ "${OS}" == 'ubuntu' ]]; then
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apt-get install -y software-properties-common
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apt-get install -y software-properties-common
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add-apt-repository -y ppa:wireguard/wireguard
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add-apt-repository -y ppa:wireguard/wireguard
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apt-get update
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apt-get update
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apt-get install -y "linux-headers-$(uname -r)"
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apt-get install -y "linux-headers-$(uname -r)"
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apt-get install -y wireguard iptables resolvconf qrencode
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apt-get install -y wireguard iptables resolvconf qrencode
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elif [[ $OS == 'debian' ]]; then
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elif [[ "${OS}" == 'debian' ]]; then
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if ! grep -rqs "^deb .* buster-backports" /etc/apt/; then
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if ! grep -rqs "^deb .* buster-backports" /etc/apt/; then
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echo "deb http://deb.debian.org/debian buster-backports main" >/etc/apt/sources.list.d/backports.list
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echo "deb http://deb.debian.org/debian buster-backports main" >/etc/apt/sources.list.d/backports.list
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apt-get update
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apt-get update
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@ -154,82 +137,173 @@ elif [[ $OS == 'debian' ]]; then
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apt update
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apt update
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apt-get install -y iptables resolvconf qrencode
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apt-get install -y iptables resolvconf qrencode
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apt-get install -y -t buster-backports wireguard
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apt-get install -y -t buster-backports wireguard
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elif [[ $OS == 'fedora' ]]; then
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elif [[ "${OS}" == 'fedora' ]]; then
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if [[ $VERSION_ID -lt 32 ]]; then
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if [[ "${VERSION_ID}" -lt 32 ]]; then
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dnf install -y dnf-plugins-core
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dnf install -y dnf-plugins-core
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dnf copr enable -y jdoss/wireguard
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dnf copr enable -y jdoss/wireguard
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dnf install -y wireguard-dkms
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dnf install -y wireguard-dkms
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fi
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fi
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dnf install -y wireguard-tools iptables qrencode
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dnf install -y wireguard-tools iptables qrencode
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elif [[ $OS == 'centos' ]]; then
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elif [[ "${OS}" == 'centos' ]]; then
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curl -Lo /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-7/jdoss-wireguard-epel-7.repo
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curl -Lo /etc/yum.repos.d/wireguard.repo https://copr.fedorainfracloud.org/coprs/jdoss/wireguard/repo/epel-7/jdoss-wireguard-epel-7.repo
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yum -y install epel-release
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yum -y install epel-release kernel kernel-devel kernel-headers
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yum -y install wireguard-dkms wireguard-tools iptables qrencode
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yum -y install wireguard-dkms wireguard-tools iptables qrencode
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elif [[ $OS == 'arch' ]]; then
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elif [[ "${OS}" == 'arch' ]]; then
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pacman -S --noconfirm linux-headers
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pacman -S --noconfirm linux-headers
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pacman -S --noconfirm wireguard-tools iptables qrencode
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pacman -S --noconfirm wireguard-tools iptables qrencode
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fi
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fi
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# Make sure the directory exists (this does not seem the be the case on fedora)
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# Make sure the directory exists (this does not seem the be the case on fedora)
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mkdir /etc/wireguard >/dev/null 2>&1
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mkdir /etc/wireguard >/dev/null 2>&1
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chmod 600 -R /etc/wireguard/
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chmod 600 -R /etc/wireguard/
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SERVER_PRIV_KEY=$(wg genkey)
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SERVER_PRIV_KEY=$(wg genkey)
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SERVER_PUB_KEY=$(echo "$SERVER_PRIV_KEY" | wg pubkey)
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SERVER_PUB_KEY=$(echo "${SERVER_PRIV_KEY}" | wg pubkey)
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# Save WireGuard settings
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# Save WireGuard settings
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echo "SERVER_PUB_IP=$SERVER_PUB_IP
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echo "SERVER_PUB_IP=${SERVER_PUB_IP}
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SERVER_PUB_NIC=$SERVER_PUB_NIC
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SERVER_PUB_NIC=${SERVER_PUB_NIC}
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SERVER_WG_NIC=$SERVER_WG_NIC
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SERVER_WG_NIC=${SERVER_WG_NIC}
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SERVER_WG_IPV4=$SERVER_WG_IPV4
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SERVER_WG_IPV4=${SERVER_WG_IPV4}
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SERVER_WG_IPV6=$SERVER_WG_IPV6
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SERVER_WG_IPV6=${SERVER_WG_IPV6}
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SERVER_PORT=$SERVER_PORT
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SERVER_PORT=${SERVER_PORT}
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SERVER_PRIV_KEY=$SERVER_PRIV_KEY
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SERVER_PRIV_KEY=${SERVER_PRIV_KEY}
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SERVER_PUB_KEY=$SERVER_PUB_KEY" >/etc/wireguard/params
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SERVER_PUB_KEY=${SERVER_PUB_KEY}
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CLIENT_DNS_1=${CLIENT_DNS_1}
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CLIENT_DNS_2=${CLIENT_DNS_2}" >/etc/wireguard/params
|
||||||
|
|
||||||
source /etc/wireguard/params
|
# Add server interface
|
||||||
|
echo "[Interface]
|
||||||
|
Address = ${SERVER_WG_IPV4}/24,${SERVER_WG_IPV6}/64
|
||||||
|
ListenPort = ${SERVER_PORT}
|
||||||
|
PrivateKey = ${SERVER_PRIV_KEY}" >"/etc/wireguard/${SERVER_WG_NIC}.conf"
|
||||||
|
|
||||||
# Add server interface
|
if pgrep firewalld; then
|
||||||
echo "[Interface]
|
FIREWALLD_IPV4_ADDRESS=$(echo "${SERVER_WG_IPV4}" | cut -d"." -f1-3)".0"
|
||||||
Address = $SERVER_WG_IPV4/24,$SERVER_WG_IPV6/64
|
# shellcheck disable=SC2001
|
||||||
ListenPort = $SERVER_PORT
|
FIREWALLD_IPV6_ADDRESS=$(echo "${SERVER_WG_IPV6}" | sed 's/:[^:]*$/:0/')
|
||||||
PrivateKey = $SERVER_PRIV_KEY" >"/etc/wireguard/$SERVER_WG_NIC.conf"
|
echo "PostUp = firewall-cmd --add-port ${SERVER_PORT}/udp && firewall-cmd --add-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --add-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'
|
||||||
|
PostDown = firewall-cmd --remove-port ${SERVER_PORT}/udp && firewall-cmd --remove-rich-rule='rule family=ipv4 source address=${FIREWALLD_IPV4_ADDRESS}/24 masquerade' && firewall-cmd --remove-rich-rule='rule family=ipv6 source address=${FIREWALLD_IPV6_ADDRESS}/24 masquerade'" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
|
||||||
|
else
|
||||||
|
echo "PostUp = iptables -A FORWARD -i ${SERVER_WG_NIC} -j ACCEPT; iptables -t nat -A POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE; ip6tables -A FORWARD -i ${SERVER_WG_NIC} -j ACCEPT; ip6tables -t nat -A POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE
|
||||||
|
PostDown = iptables -D FORWARD -i ${SERVER_WG_NIC} -j ACCEPT; iptables -t nat -D POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE; ip6tables -D FORWARD -i ${SERVER_WG_NIC} -j ACCEPT; ip6tables -t nat -D POSTROUTING -o ${SERVER_PUB_NIC} -j MASQUERADE" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
|
||||||
|
fi
|
||||||
|
|
||||||
if [ -x "$(command -v firewall-cmd)" ]; then
|
# Enable routing on the server
|
||||||
FIREWALLD_IPV4_ADDRESS=$(echo "$SERVER_WG_IPV4" | cut -d"." -f1-3)".0"
|
echo "net.ipv4.ip_forward = 1
|
||||||
FIREWALLD_IPV6_ADDRESS=$(echo "$SERVER_WG_IPV6" | sed 's/:[^:]*$/:0/')
|
|
||||||
echo "PostUp = firewall-cmd --add-port $SERVER_PORT/udp && firewall-cmd --add-rich-rule='rule family=ipv4 source address=$FIREWALLD_IPV4_ADDRESS/24 masquerade' && firewall-cmd --add-rich-rule='rule family=ipv6 source address=$FIREWALLD_IPV6_ADDRESS/24 masquerade'
|
|
||||||
PostDown = firewall-cmd --remove-port $SERVER_PORT/udp && firewall-cmd --remove-rich-rule='rule family=ipv4 source address=$FIREWALLD_IPV4_ADDRESS/24 masquerade' && firewall-cmd --remove-rich-rule='rule family=ipv6 source address=$FIREWALLD_IPV6_ADDRESS/24 masquerade'" >>"/etc/wireguard/$SERVER_WG_NIC.conf"
|
|
||||||
else
|
|
||||||
echo "PostUp = iptables -A FORWARD -i $SERVER_WG_NIC -j ACCEPT; iptables -t nat -A POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6tables -A FORWARD -i $SERVER_WG_NIC -j ACCEPT; ip6tables -t nat -A POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE
|
|
||||||
PostDown = iptables -D FORWARD -i $SERVER_WG_NIC -j ACCEPT; iptables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6tables -D FORWARD -i $SERVER_WG_NIC -j ACCEPT; ip6tables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE" >>"/etc/wireguard/$SERVER_WG_NIC.conf"
|
|
||||||
fi
|
|
||||||
|
|
||||||
# Enable routing on the server
|
|
||||||
echo "net.ipv4.ip_forward = 1
|
|
||||||
net.ipv6.conf.all.forwarding = 1" >/etc/sysctl.d/wg.conf
|
net.ipv6.conf.all.forwarding = 1" >/etc/sysctl.d/wg.conf
|
||||||
|
|
||||||
sysctl --system
|
sysctl --system
|
||||||
|
|
||||||
systemctl start "wg-quick@$SERVER_WG_NIC"
|
systemctl start "wg-quick@${SERVER_WG_NIC}"
|
||||||
systemctl enable "wg-quick@$SERVER_WG_NIC"
|
systemctl enable "wg-quick@${SERVER_WG_NIC}"
|
||||||
|
|
||||||
# Check if WireGuard is running
|
# Check if WireGuard is running
|
||||||
systemctl is-active --quiet "wg-quick@$SERVER_WG_NIC"
|
systemctl is-active --quiet "wg-quick@${SERVER_WG_NIC}"
|
||||||
WG_RUNNING=$?
|
WG_RUNNING=$?
|
||||||
|
|
||||||
# Warn user about kernel version mismatch with headers
|
# WireGuard might not work if we updated the kernel. Tell the user to reboot
|
||||||
if [[ $OS =~ (fedora|centos) ]] && [[ $WG_RUNNING -ne 0 ]]; then
|
if [[ "${WG_RUNNING}" -ne 0 ]]; then
|
||||||
echo -e "\nWARNING: WireGuard does not seem to be running."
|
echo -e "\nWARNING: WireGuard does not seem to be running."
|
||||||
echo "Due to kernel mismatch issues on $OS, WireGuard might work if your system is out of date."
|
echo "You can check if WireGuard is running with: systemctl status wg-quick@${SERVER_WG_NIC}"
|
||||||
echo "You can check if WireGuard is running with: systemctl status wg-quick@$SERVER_WG_NIC"
|
echo 'If you get something like "Cannot find device wg0", please reboot!'
|
||||||
echo 'If you get something like "Cannot find device wg0", please run:'
|
|
||||||
if [[ $OS == 'fedora' ]]; then
|
|
||||||
echo "dnf update -y && reboot"
|
|
||||||
elif [[ $OS == 'centos' ]]; then
|
|
||||||
echo "yum update -y && reboot"
|
|
||||||
fi
|
fi
|
||||||
fi
|
|
||||||
|
|
||||||
addClient
|
newClient
|
||||||
|
echo "If you want to add more clients, you simply need to run this script another time!"
|
||||||
|
}
|
||||||
|
|
||||||
|
function newClient() {
|
||||||
|
# Load params
|
||||||
|
# shellcheck disable=SC1091
|
||||||
|
source /etc/wireguard/params
|
||||||
|
|
||||||
|
ENDPOINT="${SERVER_PUB_IP}:${SERVER_PORT}"
|
||||||
|
|
||||||
|
printf "\n"
|
||||||
|
until [[ "${CLIENT_WG_IPV4}" =~ ^([0-9]{1,3}\.?){4}$ ]]; do
|
||||||
|
read -rp "Client's WireGuard IPv4: " -e -i "${SERVER_WG_IPV4::-1}"2 CLIENT_WG_IPV4
|
||||||
|
done
|
||||||
|
|
||||||
|
until [[ "${CLIENT_WG_IPV6}" =~ ^([a-f0-9]{1,4}:?:?){3,5} ]]; do
|
||||||
|
read -rp "Client's WireGuard IPv6 : " -e -i "${SERVER_WG_IPV6::-1}"2 CLIENT_WG_IPV6
|
||||||
|
done
|
||||||
|
|
||||||
|
CLIENT_NAME=$(
|
||||||
|
head /dev/urandom | tr -dc A-Za-z0-9 | head -c 10
|
||||||
|
echo ''
|
||||||
|
)
|
||||||
|
|
||||||
|
# Generate key pair for the client
|
||||||
|
CLIENT_PRIV_KEY=$(wg genkey)
|
||||||
|
CLIENT_PUB_KEY=$(echo "${CLIENT_PRIV_KEY}" | wg pubkey)
|
||||||
|
CLIENT_PRE_SHARED_KEY=$(wg genpsk)
|
||||||
|
|
||||||
|
# Home directory of the user, where the client configuration will be written
|
||||||
|
if [ -e "/home/${CLIENT_NAME}" ]; then # if $1 is a user name
|
||||||
|
HOME_DIR="/home/${CLIENT_NAME}"
|
||||||
|
elif [ "${SUDO_USER}" ]; then # if not, use SUDO_USER
|
||||||
|
HOME_DIR="/home/${SUDO_USER}"
|
||||||
|
else # if not SUDO_USER, use /root
|
||||||
|
HOME_DIR="/root"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Create client file and add the server as a peer
|
||||||
|
echo "[Interface]
|
||||||
|
PrivateKey = ${CLIENT_PRIV_KEY}
|
||||||
|
Address = ${CLIENT_WG_IPV4}/32,${CLIENT_WG_IPV6}/128
|
||||||
|
DNS = ${CLIENT_DNS_1},${CLIENT_DNS_2}
|
||||||
|
|
||||||
|
[Peer]
|
||||||
|
PublicKey = ${SERVER_PUB_KEY}
|
||||||
|
PresharedKey = ${CLIENT_PRE_SHARED_KEY}
|
||||||
|
Endpoint = ${ENDPOINT}
|
||||||
|
AllowedIPs = 0.0.0.0/0,::/0" >>"${HOME_DIR}/${SERVER_WG_NIC}-client-${CLIENT_NAME}.conf"
|
||||||
|
|
||||||
|
# Add the client as a peer to the server
|
||||||
|
echo -e "\n[Peer]
|
||||||
|
PublicKey = ${CLIENT_PUB_KEY}
|
||||||
|
PresharedKey = ${CLIENT_PRE_SHARED_KEY}
|
||||||
|
AllowedIPs = ${CLIENT_WG_IPV4}/32,${CLIENT_WG_IPV6}/128" >>"/etc/wireguard/${SERVER_WG_NIC}.conf"
|
||||||
|
|
||||||
|
systemctl restart "wg-quick@${SERVER_WG_NIC}"
|
||||||
|
|
||||||
|
echo -e "\nHere is your client config file as a QR Code:"
|
||||||
|
|
||||||
|
qrencode -t ansiutf8 -l L <"${HOME_DIR}/${SERVER_WG_NIC}-client-${CLIENT_NAME}.conf"
|
||||||
|
|
||||||
|
echo "It is also available in ${HOME_DIR}/${SERVER_WG_NIC}-client-${CLIENT_NAME}.conf"
|
||||||
|
}
|
||||||
|
|
||||||
|
function manageMenu() {
|
||||||
|
echo "Welcome to WireGuard-install!"
|
||||||
|
echo "The git repository is available at: https://github.com/angristan/wireguard-install"
|
||||||
|
echo ""
|
||||||
|
echo "It looks like WireGuard is already installed."
|
||||||
|
echo ""
|
||||||
|
echo "What do you want to do?"
|
||||||
|
echo " 1) Add a new user"
|
||||||
|
echo " 2) Exit"
|
||||||
|
until [[ "${MENU_OPTION}" =~ ^[1-2]$ ]]; do
|
||||||
|
read -rp "Select an option [1-2]: " MENU_OPTION
|
||||||
|
done
|
||||||
|
case "${MENU_OPTION}" in
|
||||||
|
1)
|
||||||
|
newClient
|
||||||
|
;;
|
||||||
|
2)
|
||||||
|
exit 0
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
}
|
||||||
|
|
||||||
|
# Check for root, virt, OS...
|
||||||
|
initialCheck
|
||||||
|
|
||||||
|
# Check if WireGuard is already installed
|
||||||
|
if [[ -e /etc/wireguard/params ]]; then
|
||||||
|
manageMenu
|
||||||
|
else
|
||||||
|
installWireGuard
|
||||||
|
fi
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user