Well the PTR record for 66.181.224.56 reports host-66-181-224-56.jwu.edu however there are no corresponding A Records for that. Its getting paranoid because it 'thinks' that someone *might* be spoofing one side of the DNS (I,e presenting a fake hostname etc) -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Dineshwar Kumar Sent: 22 May 2007 10:22 To: Redhat-Help Subject: it this is ssh issue ? Hi all, i got this entry on my server log, do anyone have idea about it. is this is ssh issue or DNS related problem? i try a lot in our lab but unable to get this error agian. I my sshd_config file UseDNS option is enable, but it won't any help May 15 10:08:57 pub01 sshd[14316]: Accepted publickey for jwuser from 66.181.224.56 port 35375 ssh2 May 15 10:08:58 pub01 sshd[14316]: reverse mapping checking getaddrinfo for host-66-181-224-56.jwu.edu failed - POSSIBLE BREAKIN ATTEMPT! May 15 10:10:02 pub01 sshd[14430]: Accepted publickey for jwuser from 66.181.224.56 port 35530 ssh2 May 15 10:10:02 pub01 sshd[14430]: reverse mapping checking getaddrinfo for host-66-181-224-56.jwu.edu failed - POSSIBLE BREAKIN ATTEMPT! With Thanks, -- Dineshwar Kumar New Delhi 9891188600 -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list