The individual configuration files for logrotate are located in /etc/logrotate.d:
# cd /etc/logrotate.d/
Then, to manually rotate the logs for exim, simply run the following.
# logrotate exim
Note: you won’t see any output, but you will notice that the exim logs in /var/log are now rotated out.
cPanel Log File Locations
This is a shortlist of various log files for various applications on your Cpanel VPS.
cPanel Installation Logs:
/var/log/cpanel-install-thread0.log
Apache:
/usr/local/apache/logs/access_log
/usr/local/apache/logs/error_log
Apache domlogs:
/usr/local/apache/domlogs/example.com
Apache SUEXEC Logs:
/usr/local/apache/logs/suexec_log
MySQL
/var/lib/mysql/hostname.err
BIND (named) Log:
/var/log/messages
Exim
/var/log/exim_mainlog
/var/log/exim_paniclog
/var/log/exim_rejectlog
Courier or Dovecot IMAP
/var/log/maillog
Tomcat Logs:
/usr/local/jakarta/tomcat/logs/catalina.err
/usr/local/jakarta/tomcat/logs/catalina.out
cPanel Access Log:
/usr/local/cpanel/logs/access_log
cPanel Error Log:
/usr/local/cpanel/logs/error_log
cPanel License Log:
/usr/local/cpanel/logs/license_log
Stats Execution Logs:
/usr/local/cpanel/logs/stats_log
ChkServd (cPanel Monitoring Daemon) Logs:
/var/log/chkservd.log
cPHulkd
/usr/local/cpanel/logs/cphulkd.log
cPanel Backup Logs:
/usr/local/cpanel/logs/cpbackup/*.log
Pure-FTP
/var/log/messages
/var/log/xferlog (symlinked to /usr/local/apache/domlogs/ftpxferlog)
Cron Logs:
/var/log/cron
SSH Logs:
/var/log/secure
ModSecurity:
/usr/local/apache/logs/modsec_audit.log
/usr/local/apache/logs/modsec_debug_log
Logwatch is very simple to install on CentOS boxen:
yum -y install logwatch
This will install logwatch and configure the daily logwatch cron in /etc/cron.daily. If you want to customize your logwatch configuration, you can edit /etc/logwatch/conf/logwatch.conf and modify settings like the email address the report is sent to, the verbosity of the report, what day you want logwatch to process, etc. A sample configuration is located at /usr/share/logwatch/default.conf/logwatch.conf
MySQL has a feature that allows you to log slow running queries to a file. To enable you just need to add some lines to your my.cnf file, and restart.
Insert the following into /etc/my.cnf:
log-slow-queries = /var/log/mysql/mysql-slow.log
long_query_time = 5
Save my.cnf and do the following when you return to a shell:
#touch /var/log/mysql/mysql-slow.log
#chown mysql:mysql /var/log/mysql/mysql-slow.log
#service mysql restart
First thing — check /usr/local/cpanel/logs/login_log
If you see a line like:
208.74.121.102 - name@domain.com [10/01/2009:17:21:12 -0000] "POST
/login/ HTTP/1.1" FAILED LOGIN webmaild: user password hash is missing
from system (user probably does not exist)
Check /home/USER/etc/DOMAIN/shadow to make sure that the webmail user is listed there. If not, copy one of the lines, change the username, and reset the password via cPanel.
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