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How to configure a wireguard endpoint on Gentoo
Tags: gentoo linux vpn


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 :

PrivateKey = MzrfXLmSfTaCpkJWKwNlCSD20eDq7fo18aJ3Dl1D0gA=
ListenPort = 342
Address =

Endpoint =
AllowedIPs =
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 :

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


Private keys can be generated with the following command :

openssl rand -base64 32

The tunnel can be managed with the wg command:

root@hurricane:~# wg
interface: wg0
  public key: 7fbr/yumFeTzXwxIHnEs462JLFToUyJ7yCOdeDFmP20=
  private key: (hidden)
  listening port: 342

  allowed ips:
  latest handshake: 57 seconds ago
  transfer: 1003.48 KiB received, 185.89 KiB sent
  persistent keepalive: every 1 minute