This script simplifies and automates the creation of Wireguard servers and clients for a road-warrior style VPN configuration. It is intended to be run on the server system.

wireguard-mgr.sh only supports Ubuntu 18.04.

The new-server option will set up a new Wireguard server, with tunnel traffic routed out the system's default gateway. It also starts and enables the Wireguard service with SystemD.

The new-server option requires two arguments:

1. --tunnel-cidr: A CIDR network block that the tunnel will use internally
2. --server-port: The local port on the system that the VPN server will listen on for incoming connections.

Example:

./wireguard-mgr.sh new-server --tunnel-cidr 10.78.0.0/24 --server-port 5555

The new-client option requires no arguments. It instead generates a new client configuration based on the server configuration and any existing client configurations. Due to its automated nature, it requires the server configration to have been generated by wireguard-mgr.sh.

Example:

./wireguard-mgr.sh new-client