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Updated old docs articles

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Julien Dessaux 2022-05-01 17:24:13 +02:00
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content/docs/gentoo/wireguard.md
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@ -11,9 +11,27 @@ tags:
This article explains how to configure wireguard on Gentoo.
## Configuration example
## Installation
Here is a `/etc/wireguard/wg0.conf` configuration example to create a tunnel listening on udp port 342 and a remote peers :
```sh
emerge net-vpn/wireguard-tools -q
```
You will also need to set `CONFIG_WIREGUARD=y` in your kernel configuration.
## Generating keys
The private and public keys for a host can be generated with the following commands:
```sh
PRIVATE_KEY=`wg genkey`
PUBLIC_KEY=`printf $PRIVATE_KEY|wg pubkey`
echo private_key: $PRIVATE_KEY
echo public_key: $PUBLIC_KEY
```
## Configuration
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:
```cfg
[Interface]
PrivateKey = MzrfXLmSfTaCpkJWKwNlCSD20eDq7fo18aJ3Dl1D0gA=
@ -27,7 +45,9 @@ 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 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 :
```sh
@ -39,11 +59,6 @@ rc-update add wg-quick.wg0 default
## 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