mirror of
https://github.com/angristan/wireguard-install.git
synced 2024-06-01 03:00:47 +00:00
86 lines
3.0 KiB
Bash
86 lines
3.0 KiB
Bash
#!/bin/bash
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if [ "$EUID" -ne 0 ]; then
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echo "You need to run this script as root"
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exit 1
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fi
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# Detect public IPv4 address and pre-fill for the user
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SERVER_PUB_IPV4=$(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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read -rp "IPv4 or IPv6 public address: " -e -i "$SERVER_PUB_IPV4" SERVER_PUB_IP
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# Detect public interface and pre-fill for the user
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SERVER_PUB_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
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read -rp "Public interface: " -e -i "$SERVER_PUB_NIC" SERVER_PUB_NIC
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SERVER_WG_NIC="wg0"
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read -rp "WireGuard interface name: " -e -i "$SERVER_WG_NIC" SERVER_WG_NIC
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SERVER_WG_IPV4="10.66.66.1"
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read -rp "Server's WireGuard IPv4 " -e -i "$SERVER_WG_IPV4" SERVER_WG_IPV4
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SERVER_WG_IPV6="fd42:42:42::1"
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read -rp "Server's WireGuard IPv6 " -e -i "$SERVER_WG_IPV6" SERVER_WG_IPV6
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SERVER_PORT=1194
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read -rp "Server's WireGuard port " -e -i "$SERVER_PORT" SERVER_PORT
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CLIENT_WG_IPV4="10.66.66.2"
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read -rp "Client's WireGuard IPv4 " -e -i "$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 "$CLIENT_DNS_2" CLIENT_DNS_2
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# Install WireGuard on Ubuntu
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add-apt-repository -y ppa:wireguard/wireguard
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apt-get install -y wireguard
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# Generate key pair for the server
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SERVER_PRIV_KEY=$(wg genkey)
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SERVER_PUB_KEY=$(echo "$SERVER_PRIV_KEY" | wg pubkey)
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# Generate key pair for the server
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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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# Add server interface
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echo "[Interface]
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Address = $SERVER_WG_IPV4/24,$SERVER_WG_IPV6/64
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ListenPort = $SERVER_PORT
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PrivateKey = $SERVER_PRIV_KEY
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PostUp = iptables -t nat -A POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6tables -t nat -A POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE
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PostDown = iptables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6tables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE" > /etc/wireguard/$SERVER_WG_NIC.conf
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# Add the client as a peer to the server
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echo "[Peer]
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PublicKey = $CLIENT_PUB_KEY
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AllowedIPs = $CLIENT_WG_IPV4/32,$CLIENT_WG_IPV6/128" >> /etc/wireguard/$SERVER_WG_NIC.conf
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# Create client file with interface
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echo "[Interface]
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PrivateKey = $CLIENT_PRIV_KEY
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Address = $CLIENT_IPV4/24,$CLIENT_IPV6/64
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DNS = $CLIENT_DNS_1,$CLIENT_DNS_2" > ~/$SERVER_WG_NIC-client.conf
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# Add the server as a peer to the client
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echo "[Peer]
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PublicKey = $SERVER_PUB_KEY
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Endpoint = $SERVER_PUB_IPV4:1194
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AllowedIPs = 0.0.0.0/0,::/0" >> ~/$SERVER_WG_NIC-client.conf
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# Enable routing on the server
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echo "net.ipv4.ip_forward = 1
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net.ipv6.conf.all.forwarding = 1" > /etc/sysctl.d/wg.conf
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sysctl --system
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systemctl start "wg-quick@$SERVER_WG_NIC"
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systemctl enable "wg-quick@$SERVER_WG_NIC"
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