Firewalling?

Hi,

I'm using a Debian installation. I prefer to use the command line. I'm
trying to log into one machine using ssh on another. The problem is
that the appropriate port is closed. How do I 'open' it?

What would be a good piece of software to update graphically in KDE in
realtime when ports are being accessed?

On 2004-08-10, Richard Cavell <(E-Mail Removed)> wrote:
> Hi,
>
> I'm using a Debian installation. I prefer to use the command line. I'm
> trying to log into one machine using ssh on another. The problem is
> that the appropriate port is closed. How do I 'open' it?
>
> What would be a good piece of software to update graphically in KDE in
> realtime when ports are being accessed?
>
The point of a firewall is that you CAN'T access a machine over a network
unless the owner wants you to. If you have physical access to the computer
you are trying to connect to, log in locally and open the ssh port. Otherwise,
email or call the owner and have him/her open the port. I assume you wanted
to open the port over the network, but that just can't happen unless you are
able to telnet in or somehow get a command shell.
As for your second question, I don't have KDE installed, nor do I run a
server.
Good luck, and happy hacking


Digi
--
http://nuwen.net/~digi/cluster
Arrakis... Desert Planet... Not one single drop of rain ever falls on Arrakis.

Richard Cavell wrote:
> Hi,
>
> I'm using a Debian installation. I prefer to use the command line. I'm
> trying to log into one machine using ssh on another. The problem is
> that the appropriate port is closed. How do I 'open' it?

If you have administrative access to the machine where the port is
closed then you just have to change the rule that it's not letting
you log into the machine. If you don't have it then it's impossible
to open the port without using hacking techniques, and I'm not talking
about script kiddies techniques...

>
> What would be a good piece of software to update graphically in KDE in
> realtime when ports are being accessed?
>

You can take a look at ntop, it has a nice web interface.
Or you can use a konsole with lsof -i -r 1, it's what I use
when I want to have a look at the connections in an easy way.

--

Jose Maria Lopez Hernandez
Director Tecnico de bgSEC
(E-Mail Removed)
bgSEC Seguridad y Consultoria de Sistemas Informaticos
http://www.bgsec.com
ESPAÑA

The only people for me are the mad ones -- the ones who are mad to live,
mad to talk, mad to be saved, desirous of everything at the same time,
the ones who never yawn or say a commonplace thing, but burn, burn, burn
like fabulous yellow Roman candles.
-- Jack Kerouac, "On the Road"