IPFW ruleset not working... advice? WAS Re: Running processes...

[Erik Trulsson]

On Sat, Feb 14, 2004 at 12:47:01PM -0600, Eric F Crist wrote:
> Hello all,
> 
> I've got the following ruleset, but I can't ssh into my server anymore.  What 
> did I miss?

You missed allowing IP packets going from your server to the outside.
You only allow packets from the outside to you.

I also think you might have misplaced the port numbers.
As it is you allow connections *from* port 25 (etc.) on the outside to
any port on your machine. I believe you want it the other way around
(i.e. allowing connections *to* port 25 on your machine from anywhere on
the outside.)

> 
> grog# ipfw show
> 00100   0     0 allow ip from any to any via lo0
> 00200   0     0 deny ip from any to 127.0.0.0/8
> 00300   0     0 deny ip from 127.0.0.0/8 to any
> 00400   7  1562 allow ip from 1.2.3.4/29 to me
> 00500   0     0 allow ip from any 22 to me
> 00600   0     0 allow ip from any 21 to me
> 00700   0     0 allow ip from any 25 to me
> 00800   0     0 allow ip from any 80 to me
> 00900   0     0 allow ip from any 443 to me
> 01000   0     0 allow ip from any 110 to me
> 01100   0     0 allow ip from any 53 to me
> 01200   0     0 allow ip from any 6667 to me
> 01300   0     0 allow ip from any 6668 to me
> 01400   0     0 deny ip from not 1.2.3.4/29 8080 to me
> 65535 101 13960 deny ip from any to any
> 
> Thanks.
> 
> -- 
> Eric F Crist
> AdTech Integrated Systems, Inc
> (612) 998-3588



-- 
<Insert your favourite quote here.>
Erik Trulsson
ertr1013 at student.uu.se