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#1 (**permalink**) 01-05-2008, 10:09 AM

Hi Every body ,

How will i rotate the system logs - AIX 5.2 .

for eg - /etc/security/failedlogin
- /var/adm/wtmp
-/var/adm/sulog

thanks
rc

#2 (**permalink**) 01-05-2008, 10:09 AM

rcee wrote:
> Hi Every body ,
>
> How will i rotate the system logs - AIX 5.2 .
>
> for eg - /etc/security/failedlogin
> - /var/adm/wtmp
> -/var/adm/sulog
>

For these, you could create a shell script that runs in cron and
monitors the size of the file and then rotates it when it exceeds a
certain high watermark.

For example, we made the following for the wtmp file that used to get
really large when we had noise tty serial lines in a poor quality
environment:

#!/bin/ksh
integer FSIZE=$(ls -l /var/adm/wtmp|awk '{ print $5 }')
if test ${FSIZE} -gt 1000000
then
/bin/mv /var/adm/wtmp /var/adm/wtmp.old
echo "$(date +"%b %e %T") $(uuname -l) old /var/adm/wtmp has been
saved." >> ${MYLOG}
/usr/sbin/acct/nulladm /var/adm/wtmp
echo "$(date +"%b %e %T") $(uuname -l) new /var/adm/wtmp has been
primed." >> ${MYLOG}
fi

#3 (**permalink**) 01-05-2008, 10:09 AM

Hi again.

Forgot to mention that you could prime the wtmp file and set the
permissions properly using the touch or redirection methods, but the
nulladm command is supposedly the correct approach for these files
according to IBM, which is why we do it that way.

Steve

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rotate system logs