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WIP: Read parameters from user, add DNS

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angristan 2019-05-05 13:05:47 +02:00
parent f1b289b6b2
commit c2c27d46eb
2 changed files with 40 additions and 8 deletions
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4
README.md
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@ -1,3 +1,3 @@
# Wireguard installer # WireGuard installer
WIP. Easily set up a dual-stack WireGuard VPN on a Linux server. See the issues for the WIP.

44
wireguard-install.sh
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#!/bin/bash #!/bin/bash
if [ "$EUID" -ne 0 ]; then
echo "You need to run this script as root"
exit 1
fi
# Detect public IPv4 address and pre-fill for the user
SERVER_PUB_IPV4=$(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)
read -rp "IPv4 or IPv6 public address: " -e -i "$SERVER_PUB_IPV4" SERVER_PUB_IP
# Detect public interface and pre-fill for the user
SERVER_PUB_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)"
read -rp "Public interface: " -e -i "$SERVER_PUB_NIC" SERVER_PUB_NIC
SERVER_WG_NIC="wg0" SERVER_WG_NIC="wg0"
SERVER_PUB_NIC="ens3" read -rp "WireGuard interface name: " -e -i "$SERVER_WG_NIC" SERVER_WG_NIC
SERVER_WG_IPV4="10.66.66.1" SERVER_WG_IPV4="10.66.66.1"
read -rp "Server's WireGuard IPv4 " -e -i "$SERVER_WG_IPV4" SERVER_WG_IPV4
SERVER_WG_IPV6="fd42:42:42::1" SERVER_WG_IPV6="fd42:42:42::1"
#SERVER_PUB_IPV4="" read -rp "Server's WireGuard IPv6 " -e -i "$SERVER_WG_IPV6" SERVER_WG_IPV6
SERVER_PORT=1194 SERVER_PORT=1194
read -rp "Server's WireGuard port " -e -i "$SERVER_PORT" SERVER_PORT
CLIENT_IPV4="10.66.66.2" CLIENT_WG_IPV4="10.66.66.2"
CLIENT_IPV6="fd42:42:42::2" read -rp "Client's WireGuard IPv4 " -e -i "$CLIENT_WG_IPV4" CLIENT_WG_IPV4
CLIENT_WG_IPV6="fd42:42:42::2"
read -rp "Client's WireGuard IPv6 " -e -i "$CLIENT_WG_IPV6" CLIENT_WG_IPV6
# Adguard DNS by default
CLIENT_DNS_1="176.103.130.130"
read -rp "First DNS resolver to use for the client: " -e -i "$CLIENT_DNS_1" CLIENT_DNS_1
CLIENT_DNS_2="176.103.130.131"
read -rp "Second DNS resolver to use for the client: " -e -i "$CLIENT_DNS_2" CLIENT_DNS_2
# Install WireGuard on Ubuntu
add-apt-repository -y ppa:wireguard/wireguard add-apt-repository -y ppa:wireguard/wireguard
apt-get install -y wireguard apt-get install -y wireguard
# Generate key pair for the server
SERVER_PRIV_KEY=$(wg genkey) SERVER_PRIV_KEY=$(wg genkey)
SERVER_PUB_KEY=$(echo "$SERVER_PRIV_KEY" | wg pubkey) SERVER_PUB_KEY=$(echo "$SERVER_PRIV_KEY" | wg pubkey)
# Generate key pair for the server
CLIENT_PRIV_KEY=$(wg genkey) CLIENT_PRIV_KEY=$(wg genkey)
CLIENT_PUB_KEY=$(echo "$CLIENT_PRIV_KEY" | wg pubkey) CLIENT_PUB_KEY=$(echo "$CLIENT_PRIV_KEY" | wg pubkey)
@ -30,12 +61,13 @@ PostDown = iptables -t nat -D POSTROUTING -o $SERVER_PUB_NIC -j MASQUERADE; ip6t
# Add the client as a peer to the server # Add the client as a peer to the server
echo "[Peer] echo "[Peer]
PublicKey = $CLIENT_PUB_KEY PublicKey = $CLIENT_PUB_KEY
AllowedIPs = $CLIENT_IPV4/32,$CLIENT_IPV6/128" >> /etc/wireguard/$SERVER_WG_NIC.conf AllowedIPs = $CLIENT_WG_IPV4/32,$CLIENT_WG_IPV6/128" >> /etc/wireguard/$SERVER_WG_NIC.conf
# Create client file with interface # Create client file with interface
echo "[Interface] echo "[Interface]
PrivateKey = $CLIENT_PRIV_KEY PrivateKey = $CLIENT_PRIV_KEY
Address = $CLIENT_IPV4/24,$CLIENT_IPV6/64" > ~/$SERVER_WG_NIC-client.conf Address = $CLIENT_IPV4/24,$CLIENT_IPV6/64
DNS = $CLIENT_DNS_1,$CLIENT_DNS_2" > ~/$SERVER_WG_NIC-client.conf
# Add the server as a peer to the client # Add the server as a peer to the client
echo "[Peer] echo "[Peer]