Re: [tlug] Does Linux need, or have, a firewall?

[Joe Larabell <larabell@???>]

On Wed, 22 Feb 2006, Dave Gutteridge wrote:

>     Thank you for the command. I have included the results below. It 
> doesn't say anything about aMule on port 80.

Sure it does:

> dave@example.com:~$ sudo lsof -i
> COMMAND     PID     USER   FD   TYPE DEVICE SIZE NODE NAME
> amule     11136     dave   11u  IPv4  21058       TCP 
> 192.168.0.102:59362->83.149.123.189:www (ESTABLISHED)

It shows aMule is making an outgoing connection on port 80 (www) to 
83.149.123.189. The firestarter screenshot confirms the direction of the 
connection.

> amule     11136     dave    9u  IPv4  17501       TCP *:4662 (LISTEN)

It also looks like aMule is listening on 4662, just like you expect.

I haven't used firestarter but, IIRC, it's just a GUI shell over iptables. 
In which case, maybe the output from the command 'iptables -L' would give 
a better idea of what's currently allowed and what's not.

--
Joe Larabell -- Synopsys VCS Support      US: larabell@example.com
http://wwwin.synopsys.com/~larabell/   Japan: larabell@?jp