How to configure a wireguard endpoint on Gentoo
This article explains how to configure wireguard on Gentoo.
emerge net-vpn/wireguard-tools -q
You will also need to set
CONFIG_WIREGUARD=y in your kernel configuration.
The private and public keys for a host can be generated with the following commands:
PRIVATE_KEY=`wg genkey` PUBLIC_KEY=`printf $PRIVATE_KEY|wg pubkey` echo private_key: $PRIVATE_KEY echo public_key: $PUBLIC_KEY
Here is a configuration example of my
/etc/wireguard/wg0.conf that creates a tunnel listening on udp port 342 and has one remote peer:
[Interface] PrivateKey = MzrfXLmSfTaCpkJWKwNlCSD20eDq7fo18aJ3Dl1D0gA= ListenPort = 342 Address = 10.1.2.7/24 [Peer] PublicKey = R4A01RXXqRJSY9TiKQrZGR85HsFNSXxhRKKEu/bEdTQ= Endpoint = 18.104.22.168:342 AllowedIPs = 10.1.2.9/32 PersistentKeepalive = 60
To implement this example you will need to generate two sets of keys. The configuration for the first server will feature the first server’s private key in the
[Interface] section and the second server’s public key in the
[Peer] section, and vice versa for the configuration of the second server.
This example is from a machine 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
The tunnel can be managed with the
root@hurricane:~# wg interface: wg0 public key: 7fbr/yumFeTzXwxIHnEs462JLFToUyJ7yCOdeDFmP20= private key: (hidden) listening port: 342 peer: R4A01RXXqRJSY9TiKQrZGR85HsFNSXxhRKKEu/bEdTQ= endpoint: 22.214.171.124:342 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