iptables in linux

Heinz Diehl htd at fritha.org
Sat Nov 12 19:37:36 UTC 2011


On 12.11.2011, Roger wrote: 

> Is there a way to limit:
> -number of log in attempts to 2, 
> -the duration of a log in attempt to 3 seconds or less
> -the number of times a username can be tried, prefer it set at 2 and
> then not again for 24 hours if it fails.
[....]

Switch off login with password and root login, and only allow login
with RSA key. After that, you can safely ignore the "white noise" :-)

  


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