Re: Restricting applications/protocols to use specific ports using iptables, is this possible

["Elvir Kuric" <omasnjak@gmail.com>]

On 6/4/07, Marc Haber <mh+netfilter@zugschlus.de> wrote:
> On Mon, Jun 04, 2007 at 01:37:07PM +0200, Elvir Kuric wrote:
> > I am interested in one thing, is possible using iptables software
> > limit particular application/protocol to use/bind to particular ports.
>
> Why do you want to do that?
:) I want to control which ports are open in output chain. Testing, exploring.

I know it is not important which ports are open in output chain,
usually putting output policy to accept.

> > For example I want to send all reqestes from my machine using ports I
> > specify, not random ones,
>
> Why?
>
> >  or accept ping echo-replay on specific ports.
>
> Pleas get your facts straight. ICMP does not have ports.
ICMP was just example, first on my mind in that moment :)

Regards

Elvir Kuric
> Greetings
> Marc
>
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