--- title: Wireguard description: How to configure a wireguard endpoint on Gentoo --- ## Introduction This article explains how to configure wireguard on Gentoo. ## Configuration example Here is a `/etc/wireguard/wg0.conf` configuration example to create a tunnel listening on udp port 342 and a remote peers : ```cfg [Interface] PrivateKey = MzrfXLmSfTaCpkJWKwNlCSD20eDq7fo18aJ3Dl1D0gA= ListenPort = 342 Address = 10.1.2.7/24 [Peer] PublicKey = R4A01RXXqRJSY9TiKQrZGR85HsFNSXxhRKKEu/bEdTQ= Endpoint = 168.119.114.183:342 AllowedIPs = 10.1.2.9/32 PersistentKeepalive = 60 ``` Your private key goes on the first line as argument to `wgkey`, the other keys are public keys for each peer. In this example I setup a client that can be hidden behind nat therefore I configure a `PersistentKeepalive`. If your host has a public IP this line is not needed. To activate the interface configuration, use : ```sh cd /etc/init.d ln -s wg-quick wg-quick.wg0 rc-update add wg-quick.wg0 default /etc/init.d/wg-quick.wg0 start ``` ## Administration Private keys can be generated with the following command : {{< highlight sh >}} openssl rand -base64 32 {{< /highlight >}} The tunnel can be managed with the `wg` command: ```sh root@hurricane:~# wg interface: wg0 public key: 7fbr/yumFeTzXwxIHnEs462JLFToUyJ7yCOdeDFmP20= private key: (hidden) listening port: 342 peer: R4A01RXXqRJSY9TiKQrZGR85HsFNSXxhRKKEu/bEdTQ= endpoint: 168.119.114.183:342 allowed ips: 10.1.2.9/32 latest handshake: 57 seconds ago transfer: 1003.48 KiB received, 185.89 KiB sent persistent keepalive: every 1 minute ```