Block IP

[Ankush Grover]

On 8/31/06, JeeBee <JeeBee at troefpunt.nl> wrote:
> I just had the same problem. I wanted to block an ip that is constantly
> doing a dictionary attack on my system. This is the situation before:
>
> /etc/hosts.allow:
>   ALL : <some trusted domains here>
>   sshd : ALL
> /etc/hosts.deny:
>   ALL : ALL
>
> The only way I could see to add this ip address I want to block is
> to change sshd:ALL in hosts.allow to sshd:ALL EXCEPT 1.2.3.4.
>
> If I sould add sshd:1.2.3.4 to hosts.deny, this would totally be
> ignored.
> Perhaps it would be more neat to remove sshd:ALL from hosts.allow
> and to remove ALL:ALL from hosts.deny.
> Then I could say sshd:1.2.3.4 in hosts.deny.
> However, what more will be allowed then? The ALL:ALL in hosts.deny
> blocks a lot more of course.
>
> Still, I have the feeling that ALL EXCEPT <long lists of untrusted ips
> here> is not the way to go.
> Can anybody tell me how this should be done?
>

Hey,

A script which automatically blocks the offending ips. Please read the
documentation for more information regarding this.

http://denyhosts.sourceforge.net/

Regards

Ankush Grover