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Run Following Commands to empty exim and apache logs
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echo > /var/log/exim_mainlog
echo > /var/log/exim_rejectlog
echo > /var/log/maillog
echo > /var/log/messages
echo > /var/log/messages.1
echo > /var/log/messages.2
echo > /var/log/messages.3
echo > /var/log/messages.4
echo > /var/log/lastlog
echo > /var/log/maillog
echo > /var/log/maillog.1
echo > /var/log/maillog.2
echo > /var/log/maillog.3
echo> /var/log/secure
echo> /var/log/secure.1
echo> /var/log/secure.2
echo> /var/log/secure.3
echo> /var/log/secure.4
echo > /usr/local/apache/logs/access_log
echo > /usr/local/apache/logs/suexec_log
echo > /usr/local/apache/logs/error_log
echo > /usr/local/cpanel/logs/access_log
echo > /usr/local/cpanel/logs/error_log
echo > /var/log/exim_mainlog.1
echo > /usr/local/cpanel/3rdparty/mailman/logs/locks
echo > /var/log/cron.2
echo > /var/log/chkservd.log
echo > /var/log/cron.4
echo > /var/log/exim_paniclog.1
echo > /var/log/exim_rejectlog.1
echo > /var/log/exim_paniclog
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How to delete unwanted things from /usr partion.
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1) Login to client machine via ssh.
2) type : df -h
3) then go to : cd /usr/local/apache/logs
4) type: ls -ihS
5) type: echo > error_log
6) type: echo > suexec_log
7) go to : cd ../domlogs/
8) type: ls -lhS | head -n 20
9) type: echo > anyone from the list.
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