OpenBSD

Alright I've decided to make a OpenBsd firewall. Since i'm a linux newb this should be fun (=.

So far I've fully installed OpenBSD and it self boots YAY!

The first problem im running into is configuring interfaces on statup.

I've used the ifconfig commands to setup interfaces but those are erased when system shutsdown.

The openbsd manual says in /ect/hostname.interface file exists for each interface that I have....It doesn't

So i've tried to manually add them using vi (wow hard to get used to vi) so in /ect I created the file Bublitz.vr0

Then added the line in the file
inet (ip) (mask) (broadcast) (description)

On start up this does nothing. I know the system can see my 3 nics cause I can see all three when ifconfig is entered.

Am I missing something?

Yes, "hostname" is not meant to be replaced by your actual hostname. Try creating the file "/etc/hostname.vr0"

Thanks. Yup that was the ticket. Can you put a gateway on a interface, or do you use default routes for that kind of stuff?

Yes, you can execute any command through the hostname.interface scripts.

I.e., to add a route for the 192.168.0/24 network, you can add in your hostname.vr0:

[code:1]! /sbin/route -n add 192.168.0.0/24 192.168.0.5[/code:1]

The route will use the interface that has an address to the specific network automatically.

Whats the ! for ?

Whats the ! for ?

! means (paraphrased) 'execute the following full command outside of the rc init script'


if you only have a default route, you can put it's address in /etc/mygate instead, which is processed by the rc init script.