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how to fix a corrupt utmp in rhel3u4

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Matt Shaffer_1
Regular Advisor

how to fix a corrupt utmp in rhel3u4

every other day a rhel3u4 box has an issue with utmp. we either have to get all users off the system and >utmp or reboot the server which is actually faster. is there an way to fix the utmp without having to reboot? I have found docs on fwtmp for HPUX but can't find any fixes for rhel. we have a case open with HP but wanted to open a forum as well. thanks

Matt
4 REPLIES
Steven E. Protter
Exalted Contributor
Solution

Re: how to fix a corrupt utmp in rhel3u4

Shalom Matt,

Patch the box to update 6 or above and the problem will go away.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
Matt Shaffer_1
Regular Advisor

Re: how to fix a corrupt utmp in rhel3u4

Steven,

I know you've helped me out a lot in the past so I definite respect your suggestion so don't take this the wrong way: Are you serious? If I upgrade to U6 this will fix the issue? We have 400+ ml350s running rhel3u4 and this is the only server that consistently has this problem. One other server has had the problem once or twice but it hasn't happened in a long time.

thanks for the info
Matt
Avijit Patra
Occasional Advisor

Re: how to fix a corrupt utmp in rhel3u4

Is the box running applications (like abinitio) that uses utmp extensively? The application(s) are possibly not writing properly to the utmp. utmp become corrupted repeatedly when users/application does not close their sessions properly.

If this is the case, working with the application vendor can give result.
Matt Shaffer_1
Regular Advisor

Re: how to fix a corrupt utmp in rhel3u4

upgrading the telnet-server daemon seems to have fixed the issue.