Issue Random 403 / Apache Testing 123...

[RJ45]

Server operating system version

CentOS Linux 7.9.2009 (Core)

Plesk version and microupdate number

Version 18.0.55 Update #

Hello,

I have been getting random 403 / Apache Testing 123.... / Temporary Jail at random across all domains. Anyone else experienced this or have a solution?

 

[Peter Debik]

Please try to disable the ModSecurity jail in the Fail2Ban configuration and check whether this fixes the issue. It reacts on ModSecurity 403-error entries in error_logs of domains. Try to find out, which domain error log logs the 403s, identifiy the "rule id" from the ModSecurity error log entry and add that rule id as an exception to the "Web Application Firewall" settings of that domain to prevent ModSecurity of blocking transactions of that rule.