You can correct date and time-stamp inconsistencies.
You must have root user or adm group authority to perform this procedure.
Processing the /var/adm/wtmp file might
produce some warnings mailed to root. The wtmp file contains
information collected by /etc/init and /bin/login and
is used by accounting scripts primarily for calculating connect time (the
length of time a user is logged in). Unfortunately, date changes confuse the
program that processes the wtmp file. As a result, the runacct command
sends mail to root and adm complaining of any errors after a date change since
the last time accounting was run.
- Determine if you received any errors.
The acctcon1 command
outputs error messages that are mailed to adm and root by the runacct command.
For example, if the
acctcon1 command stumbles
after a date change and fails to collect connect times, adm might get mail
like the following mail message:
Mon Jan 6 11:58:40 CST 1992
acctcon1: bad times: old: Tue Jan 7 00:57:14 1992
new: Mon Jan 6 11:57:59 1992
acctcon1: bad times: old: Tue Jan 7 00:57:14 1992
new: Mon Jan 6 11:57:59 1992
acctcon1: bad times: old: Tue Jan 7 00:57:14 1992
new: Mon Jan 6 11:57:59 1992
- Adjust the wtmp file by typing:
/usr/sbin/acct/wtmpfix wtmp
The wtmpfix command examines the wtmp file
for date and time-stamp inconsistencies and corrects problems that could make acctcon1 fail.
However, some date changes slip by wtmpfix.
- Run accounting right before shutdown or immediately after startup.
Using the runacct command at these times minimizes
the number of entries with bad times. The runacct command
continues to send mail to the root and adm accounts, until you edit the runacct script,
find the WTMPFIX section, and comment out the line where
the file log gets mailed to the root and adm accounts.