Mailinglist Archive: opensuse (4348 mails)

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Re: [SLE] SuSe Firewalling and protecting against hackers
  • From: jaakko tamminen <jaakko.tamminen@xxxxxxxxxx>
  • Date: Tue, 1 Oct 2002 16:51:58 +0300
  • Message-id: <200210011651.58450.jaakko.tamminen@xxxxxxxxxx>

In Your previous e-mail You said:
> > > FW_DEV_EXT="eth1"
So the external interface is devined... Maybe You need to run "SuSEconfig" as
root, and then try again.

If You want to stop the firewall, it is best done with "SuSEfirewall stop".
There is nothing against that You "flush" them manually with "-F" option, but
the script is only one simple command. It actually uses the "-F" for clearing
the firewall rules.

If You want to check the firewall, one good place is,
select "shields up", then again find "shields up", then select "test my
shields", wait for output, and run also "probe my ports".

This will give You quite good indication of Your protection level.

But to go more deep into protecting Your system, this is just the beginning...



On Tuesday 01 October 2002 13:27, PUTH CHAN CHOTH wrote:
> Dear Gurus,
> When I do what I said and then I fire the following command:
> $ /sbin/SuSEfirewall start
> and it says:
> The firewall script needs to know the external (internet) interface!
> SuSEfirewall: clearing rules now ... done
> How to clear the firewall, I means when I use ipchains I fire the command:
> $ipchains -F
> $ipchains -X
> But what about SuSe is it
> $ /sbin/SuSEfirewall stop
> How can I know that when I use this firewall and my ports are not open to
> the outside world again? Thank you so much for your assistance.
> Regards,
> Choth

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