Symptoms
-
Domain is not available with the following error shown:
500
external Server Error -
The following messages can be found in Domains > example.com > Logs or in
/var/www/vhosts/example.com/logs/error.logfile:[error] [client 203.0.113.2] ModSecurity: Output filter: Response body too large (over limit of 524288, total not specified). [hostname "www.example.com"] [uri "/index.php"] [unique_id "W*****U43-wA*****G"]
Cause
Domain exceeded the default SecResponseBodyLimit parameter for ModSecurity (512 Kb).
Resolution
For domain
-
Navigate to Domains > example.com > Apache & nginx Settings
-
Add the following line to Additional directives for HTTP and to Additional directives for HTTPS:
<IfModule mod_security2.c>
SecResponseBodyLimit 536870912
</IfModule> -
Press Apply .
Server-wide
-
Navigate to Tools & settings > Web Application Firewall (ModSecurity) > Settings > Custom directives section:
-
Add the following line:
SecResponseBodyLimit 536870912
-
Press Apply