roman dissertori wrote:

> Hello anyone,
>
> I'm using the operating System Linux - RedHat9
> I'm totally a newbie in linux-security and that's why I've got a Problem:
> A month ago, I got hacked by someone 3 times!
> I always had to reinstall my distribution for security reasons.
> Poeple in groups.google suggested to do so after a successful hack.
> I changed the _standard known_ portnumbers and I denied the access for all
> incoming internet connections to the ports 0-1024 and mysql per protocol tcp
> and udp in my ipchains.
> Is that enough or - what should else should I do to prevent him/her from
> hacking into my computer again (and it would be nice if i could trace him
> back and do something about it)
> Any suggestions?
>

Have you installed all the security patches before exposing it to the
Net? Did you change *all* your passwords? How did they hack you?