security warning -- POSSIBLE BREAKIN ATTEMPT!

[fbsd]

This is just ssh doing it's job.
It's normal.
This subject has been covered many times.
Please review the list archives for details.

-----Original Message-----
From: owner-freebsd-questions at freebsd.org
[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Rodrigo
Mufalani
Sent: Friday, April 28, 2006 3:08 PM
To: freebsd-questions at freebsd.org
Subject: security warning -- POSSIBLE BREAKIN ATTEMPT!


Hi,

   I see this messages on my server:

   What signicate this? Possible invasion?


Apr 27 12:56:46 ns23 sshd[80291]: reverse mapping checking
getaddrinfo for
81-196-24-250.rdsnet.ro failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 12:56:46 ns23 sshd[80292]: reverse mapping checking
getaddrinfo for
81-196-24-250.rdsnet.ro failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 12:56:50 ns23 sshd[80299]: reverse mapping checking
getaddrinfo for
81-196-24-250.rdsnet.ro failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 12:56:52 ns23 sshd[80298]: reverse mapping checking
getaddrinfo for
81-196-24-250.rdsnet.ro failed - POSSIBLE BREAKIN ATTEMPT!
...
...
...
211-20-134-200.hinet-ip.hinet.net failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 16:27:31 ns23 sshd[93265]: reverse mapping checking
getaddrinfo for
211-20-134-200.hinet-ip.hinet.net failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 16:27:33 ns23 sshd[93267]: reverse mapping checking
getaddrinfo for
211-20-134-200.hinet-ip.hinet.net failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 16:27:34 ns23 sshd[93269]: reverse mapping checking
getaddrinfo for
211-20-134-200.hinet-ip.hinet.net failed - POSSIBLE BREAKIN ATTEMPT!
Apr 27 16:27:36 ns23 sshd[93274]: reverse mapping checking
getaddrinfo for
211-20-134-200.hinet-ip.hinet.net failed - POSSIBLE BREAKIN ATTEMPT!
...
...
...








Atenciosamente,

Rodrigo Mufalani
DBA - MXM Sistemas
tel.: 32332300
www.mxm.com.br
rodrigo.pinto at mxm.com.br






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