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WireGuard Configuration Examples ​

Example 1 ​

This example is for the most common use case of WireGuard, which is a peer-server configuration. That means peers will tunnel all traffic to the server, then to the Internet, like a commercial available VPN.

First, we will need to know what is our default network interface, the one that is connected to your local network, or publicly.

bash
ifconfig

Then you should see something like this:

root@iZxpek3vn1di7xZ:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.18.62.60  netmask 255.255.192.0  broadcast 172.18.63.255
        inet6 fe80::216:3eff:fe01:f43c  prefixlen 64  scopeid 0x20<link>
        ether 00:16:3e:01:f4:3c  txqueuelen 1000  (Ethernet)
        RX packets 858900  bytes 668327533 (668.3 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 673313  bytes 409479887 (409.4 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 212734  bytes 11607282 (11.6 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 212734  bytes 11607282 (11.6 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
...

Look for the interface have the IP address you want (inet). In my case it would be eth0.

Now, we can head to WGDashboard and add a configuration. Feel free to change the Configuration Name, Listen Port and IP Address/CIDR as you want

Then we scroll to the bottom and expand Optional Settings. To be able to have our peer's traffic go out from the server, we need to setup iptables rules. In this example, we will need to set PostUp and PostDown

PostUp ​

Bash
iptables -A FORWARD -i wg0 -j ACCEPT; iptables -A FORWARD -o wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE;

PostDown ​

Bash
iptables -D FORWARD -i wg0 -j ACCEPT; iptables -D FORWARD -o wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE;

then click Save. Now you can create peers and your traffic should go through your server.