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Old 10th November 2010, 06:23 PM
LWONG Offline
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Join Date: Nov 2010
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windows_xp_2003ie
Too many SSH Connections and Segfault on message logs

I am experiencing a performance degradation of memory on the linux server and after some troubleshooting the only thing that appears to me as not normal is the spawning of too many SSHD processes every minute and therefore by the end of the day the memory is maxed out and the performance is slow.

I have done some troubleshooting but still no luck. I have uninstalled and re-installed SSH via YUM and no luck. I have modified the configuration file so that ssh do not start when system reboot is started and that did not work, even when ssh is stopped I still continue to see sshd's spawning every minute. I have used the netstat to see if there has been some hacking but from my limited experience it doesn't appear to be, I only see Established processes.

My messages log file does indicate the following error messages:

Nov 10 12:08:01 webserv2 kernel: sshd:[30723]: segfault at 0 ip 08071003 sp bfe6cccc error 6 in sshd:[8071000+2000]
Nov 10 12:09:01 webserv2 kernel: sshd:[30732]: segfault at 0 ip 08071003 sp bff0a56c error 6 in sshd:[8071000+2000]
Nov 10 12:10:01 webserv2 kernel: sshd:[30742]: segfault at 0 ip 08071003 sp bfaa48fc error 6 in sshd:[8071000+2000]
Nov 10 12:11:01 webserv2 kernel: sshd:[30750]: segfault at 0 ip 08071003 sp bfe1cc7c error 6 in sshd:[8071000+2000]
Nov 10 12:12:01 webserv2 kernel: sshd:[30759]: segfault at 0 ip 08071003 sp bff23d7c error 6 in sshd:[8071000+2000]
Nov 10 12:13:01 webserv2 kernel: sshd:[30768]: segfault at 0 ip 08071003 sp bf9d883c error 6 in sshd:[8071000+2000]
Nov 10 12:14:01 webserv2 kernel: sshd:[30777]: segfault at 0 ip 08071003 sp bf9c481c error 6 in sshd:[8071000+2000]
Nov 10 12:15:01 webserv2 kernel: sshd:[30786]: segfault at 0 ip 08071003 sp bff775dc error 6 in sshd:[8071000+2000]
Nov 10 12:16:01 webserv2 kernel: sshd:[30794]: segfault at 0 ip 08071003 sp bfcef34c error 6 in sshd:[8071000+2000]
Nov 10 12:17:01 webserv2 kernel: sshd:[30802]: segfault at 0 ip 08071003 sp bfbb420c error 6 in sshd:[8071000+2000]
Nov 10 12:18:01 webserv2 kernel: sshd:[30811]: segfault at 0 ip 08071003 sp bfd18b6c error 6 in sshd:[8071000+2000]
Nov 10 12:19:01 webserv2 kernel: sshd:[30820]: segfault at 0 ip 08071003 sp bfe614bc error 6 in sshd:[8071000+2000]
Nov 10 12:20:01 webserv2 kernel: sshd:[30831]: segfault at 0 ip 08071003 sp bfcb030c error 6 in sshd:[8071000+2000]


Can anyone please help and give me some guidance on what else to consider or how to resolve.
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