On 9 Oct 2008, at 09:06, David Rioja wrote:
> ...
> I've been editing /etc/ssh/sshd_config in order to configure SSH as  
> told in the guide at gentoo.org.

Hi there,

Curiosity caused me to Google the configuration you gave & led me to <http://www.gentoo.org/proj/en/infrastructure/config-ssh.xml 
 >. This is not a guide for end-users - this configuration is  
mandatory ONLY if the machine you're configuring is to be globally  
addressable as hostname.gentoo.org

I might also add that the "ServerKeyBits 2048" line of this  
configuration appears to be rendered redundant by the "Protocol 2"  
line - unless you're an expert I would just stick with the default / 
etc/ssh/sshd_config and only change the parts that you think  
appropriate. (I personally deny root logon & enable X11 forwarding on  
my machines.)

Stroller.