topic Re: Managing /var space in Operating System - HP-UX

Managing /var space

Indrajit_1 — Tue, 17 Jan 2006 17:13:13 GMT

Hi;

How do control /var/adm/wtmp file. it seems the file size is grown to 103444800. please help me.

cheers
indrajit

Re: Managing /var space

Jeff_Traigle — Tue, 17 Jan 2006 17:18:31 GMT

There's no mechanism in HP-UX to rotate /var/adm/wtmp or /var/adm/btmp. You can set up a cron job to rotate them periodically. Or use a tool like logrotate that you can get from the Porting Center to manage them and many other log files HP-UX doesn't manage out-of-the-box. A quick and dirty rotation:

cp -p /var/adm/wtmp /var/adm/wtmp.old
> /var/adm/wtmp
gzip /var/adm/wtmp.old

Re: Managing /var space

James R. Ferguson — Tue, 17 Jan 2006 17:28:50 GMT

Hi:

The file 'var/adm/wtmp' and its cousin '/var/adm/btmp' for logging successful and unsuccessful logins, respectively, grown without bounds.

If you don't want to log the activity, remove the file. That disables the logging.

Otherwise you can null the file:

# cat /dev/null > /var/adm/wtmp

...or trim it by first converting the binary data to ASCII; trimming what you don't want; and then converting the ASCII version back to the binary form:

# # /usr/sbin/acct/fwtmp < /var/adm/wtmp > /tmp/wtmp

[ trim the ASCII file as necessary ]

# /usr/sbin/acct/fwtmp -ic < /tmp/wtmp > /var/adm/wtmp

Regards!

...JRF...

Re: Managing /var space

Steven E. Protter — Tue, 17 Jan 2006 17:36:45 GMT

Shalom indrajit,

Once a week, I have a script that does this:

cp /var/adm/syslog/wtmp /copytotape
cp /var/adm/syslog/btmp /copytotape

> /var/adm/syslog/wtmp
> /var/adm/syslog/btmp

SEP

Re: Managing /var space

Indrajit_1 — Tue, 17 Jan 2006 19:25:39 GMT

Hi All,

Thanks a lot for ur kind support. /var has reduced to 77%.

Thanks James R..

cheers
indrajit