possible breakin attempt?

Anthony Philipp philipp1 at uiuc.edu
Tue Oct 18 10:19:40 PDT 2005


Hello,

In my daily emails from my box I noticed this:

Oct 17 16:13:03 lupin sshd[51861]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:05 lupin sshd[51863]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:08 lupin sshd[51865]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:21 lupin sshd[51869]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:21 lupin sshd[51867]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:30 lupin sshd[51873]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:32 lupin sshd[51875]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:34 lupin sshd[51871]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:37 lupin sshd[51877]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:37 lupin sshd[51879]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:40 lupin sshd[51881]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:43 lupin sshd[51883]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!
Oct 17 16:13:55 lupin sshd[51885]: reverse mapping checking getaddrinfo for 211-234-119-139.kidc.net failed - POSSIBLE BREAKIN ATTEMPT!

I was just wondering exactly how dangerous this is, and what I can
do about it. 

Thanks for any additional help!

Anthony


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