Some times After browsing site we get a blank page and the Apache error logs display following error logs:
ModSecurity: Rule execution error – PCRE limits exceeded (-8): (null). [hostname “www.test.com”] [uri “/forum/login.php”]
In order to solve this error follow the steps:
Login to the server as root.
Go to directory /usr/local/apache/conf.
cd /usr/local/apache/conf
Create a file pcre_modsecurity_exceeded_limits.conf and insert following lines in it.
vi pcre_modsecurity_exceeded_limits.conf SecPcreMatchLimit 150000 SecPcreMatchLimitRecursion 150000
Save and quit the file.
Please set the permissions for the file to 600.
chmod 600 /usr/local/apache/conf/pcre_modsecurity_exceeded_limits.conf
Now open the file /usr/local/apachec/conf/modsec2.user.conf .
vi /usr/local/apachec/conf/modsec2.user.conf
Locate the line “<IfModule mod_security2.c>”
Add following line just below the above mentioned line.
Include “/usr/local/apache/conf/pcre_modsecurity_exceeded_limits.conf”
Save and quit the file.
Now just restart your apache and mysql service. The issue should be fixed now.
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