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diff --git a/content/docs/openbsd/wireguard.md b/content/docs/openbsd/wireguard.md new file mode 100644 index 0000000..71d670e --- /dev/null +++ b/content/docs/openbsd/wireguard.md @@ -0,0 +1,60 @@ +--- +title: Wireguard +description: How to configure a wireguard endpoint on OpenBSD +--- + +## Introduction + +OpenBSD does things elegantly as usual : where linux distributions have a service, OpenBSD has a simple `/etc/hostname.wg0` file. The interface is therefore managed without any tool other than the standard ifconfig, it's so simple and elegant! + +## Configuration example + +Here is a configuration example to create a tunnel listening on udp port 342 and several peers : +{{< highlight cfg >}} +wgport 342 wgkey '4J7O3IN7+MnyoBpxqDbDZyAQ3LUzmcR2tHLdN0MgnH8=' +10.1.2.1/24 +wgpeer 'LWZO5wmkmzFwohwtvZ2Df6WAvGchcyXpzNEq2m86sSE=' wgaip 10.1.2.2/32 +wgpeer 'SjqCIBpTjtkMvKtkgDFIPJsAmQEK/+H33euekrANJVc=' wgaip 10.1.2.4/32 +wgpeer '4CcAq3xqN496qg2JR/5nYTdJPABry4n2Kon96wz981I=' wgaip 10.1.2.8/32 +wgpeer 'vNNic3jvXfbBahF8XFKnAv9+Cef/iQ6nWxXeOBtehgc=' wgaip 10.1.2.6/32 +{{< /highlight >}} + +Your private key goes on the first line as argument to `wgkey`, the other keys are public keys for each peer. + +## Administration + +Private keys can be generated with the following command : +{{< highlight sh >}} +openssl rand -base64 32 +{{< /highlight >}} + +The tunnel can be managed with the standard `ifconfig` command: +{{< highlight sh >}} +root@yen:~# ifconfig wg0 +wg0: flags=80c3<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1420 + index 4 priority 0 llprio 3 + wgport 342 + wgpubkey R4A01RXXqRJSY9TiKQrZGR85HsFNSXxhRKKEu/bEdTQ= + wgpeer LWZO5wmkmzFwohwtvZ2Df6WAvGchcyXpzNEq2m86sSE= + wgendpoint 90.66.117.156 1024 + tx: 158515972, rx: 151576036 + last handshake: 93 seconds ago + wgaip 10.1.2.2/32 + wgpeer SjqCIBpTjtkMvKtkgDFIPJsAmQEK/+H33euekrANJVc= + wgendpoint 90.66.117.156 51110 + tx: 30969024, rx: 14034688 + last handshake: 9527 seconds ago + wgaip 10.1.2.4/32 + wgpeer 4CcAq3xqN496qg2JR/5nYTdJPABry4n2Kon96wz981I= + wgendpoint 90.66.117.156 46247 + tx: 36877516, rx: 19036472 + last handshake: 23 seconds ago + wgaip 10.1.2.8/32 + wgpeer vNNic3jvXfbBahF8XFKnAv9+Cef/iQ6nWxXeOBtehgc= + wgendpoint 90.66.117.156 1025 + tx: 150787792, rx: 146836696 + last handshake: 43 seconds ago + wgaip 10.1.2.6/32 + groups: wg + inet 10.1.2.1 netmask 0xffffff00 broadcast 10.1.2.255 +{{< /highlight >}} |