Create new client for wireguard server

wg-new-client.sh

#!/bin/bash

export CLIENT_NUMBER='3'

export CLIENT_CONFIG_FILE="wg0-client$CLIENT_NUMBER.conf"

export CLIENT_PRIV_KEY="$(wg genkey)"
export CLIENT_PUB_KEY="$(echo $CLIENT_PRIV_KEY | wg pubkey)"
export CLIENT_WG_IPV4="10.66.66.$CLIENT_NUMBER"
export CLIENT_WG_IPV6="fd42:42:42::$CLIENT_NUMBER"
export CLIENT_DNS_1='176.103.130.130'
export CLIENT_DNS_2='176.103.130.131'
export CLIENT_PSK="$(wg genpsk)"

# Add the client as a peer to the server
echo "[Peer]
PublicKey = $CLIENT_PUB_KEY
AllowedIPs = $CLIENT_WG_IPV4/32,$CLIENT_WG_IPV6/128
PresharedKey = $CLIENT_PSK" >> "/etc/wireguard/wg0.conf"

# Create client file with interface
echo "[Interface]
PrivateKey = $CLIENT_PRIV_KEY
Address = $CLIENT_WG_IPV4/24,$CLIENT_WG_IPV6/64
DNS = $CLIENT_DNS_1,$CLIENT_DNS_2" > $CLIENT_CONFIG_FILE

# Add the server as a peer to the client
echo "[Peer]
PublicKey = NfmDJho+dMbB+osSG+kn0gc49XNbyzdj9e7VNYQwt34=
Endpoint = 94.130.187.88:14888
AllowedIPs = 0.0.0.0/0,::/0
PresharedKey = $CLIENT_PSK" >> $CLIENT_CONFIG_FILE


systemctl restart "wg-quick@wg0"

echo "Here is your client config file as a QR Code:"

qrencode -t ansiutf8 -l L < $CLIENT_CONFIG_FILE