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Limiting modsec_audit.log On Plesk

The mod_security implementation on Plesk 12 is a great new feature but we’ve noticed a tendency to accumulate very large log files at:

/var/log/modsec_audit.log

This happens on CentOS but not sure if it’s a problem on other distributions.

One way to reduce the logging is to add this line:

to:

Plesk -> Tools & Settings -> Web Application Firewall -> Settings -> Custom directives

Another good step is to add log rotation for the file by creating:

/etc/logrotate.d/modsec

with: