Am 13.11.2011 01:52, schrieb Roger: > 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.
your /home/user/.ssh/id_rsa belongs to you and not to the system this is the only interestig one for login the host-keys are not relevant and only for verify the host to protect against man-in-the-middle-attacks and will NEVER be regenrated nor is it a problem import them on a new machine
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