how to reduce size or trim wtmp on HPUX

[Pankaj_14]

Hi, wtmp file under /var/adm is over 100MB on my HPUX server and I would like to reduce the size. I can zip it but would like to know best practice to empty it.
will just "cat /dev/null > /var/adm/wtmp" works here?

[Peter Leddy_1]

Hi,

That should work fine or you can just do

> /var/adm/wtmp

OR

you can even do it through SAM if you prefer, in routine tasks.

Take your pick.

Regards,

Peter

[Peter Godron]

Hi,
please see Steve Steels answer here:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=69415

Other useful threads:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=822770
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=215793

Please also read:
http://forums1.itrc.hp.com/service/forums/helptips.do?#33 on how to reward any useful answers given to your questions.

[vz7r1x]

Pankaj
1. zip the file to save contents for furure
2. cat /dev/null > /var/adm/wtmp (this will empty out wtmp)

By putting null contents into wtmp, you will not have to delete/re-create file, not deleting wtmp will also save you from permission isssue you may have later.

Thanks

[vz7r1x]

Pankaj
1. zip the file to save contents for furure
2. cat /dev/null > /var/adm/wtmp (this will empty out wtmp)

By putting null contents into wtmp, you will not have to delete/re-create file, not deleting wtmp will also save you from permission isssues you may have later.

Thanks

[Pankaj_14]

Thanks for quick reply.