Checking Ports (Firewall)

Andre Truter andre.truter at
Sat Mar 26 06:33:24 UTC 2005

On Fri, 25 Mar 2005 14:24:42 -0800, Daniel Robitaille
<robitaille at> wrote:
> > thanks Andre for this deeper elaborations.
> > i feel much better right now riding my loptop with Ubuntu Linux.
> > as firewall i ru Firestarter. i do not much about that app.
> > how to check up all the ports of one's machine, 'cause you said ports are
> > a much more interesting target for someone to attack?
> > or do we say: this job is done well enough by the Firestarter?
> nmap is a good application to use to check the ports on a machine on a network.

You can also try Nessus (

In most cases a Firwall application on Linux is just a configuration
tool to generate the loadiing scripts for Iptables.
Iptables is doing the actual firewalling and it is pretty good at it.

I use Firewall Builder ( for my home
firewall, it makes things easy.

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Andre Truter | Software Engineer | Registered Linux user #185282
ICQ #40935899 | AIM: trusoftzaf |

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