iptables in linux

Roger arelem at bigpond.com
Sun Nov 13 00:52:58 UTC 2011

On Sat, 2011-11-12 at 20:37 +0100, Heinz Diehl wrote:
> 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" :-)
 I read about this and am concerned that if my computer dies and I
replace mb or other components, the RSA key could be different and I
won't be able to log in with the previous RSA.
Not understanding the process made me a bit nervous.

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