Apache SSL issues on several servers since this morning

[cpanzy]

Since 5 hours ago 3 of my dedicated servers have stopped serving websites via SSL.

In service status, httpd cycles between pending and down.

After restarting apache I can get a non SSL site okay for about 30 seconds and then it stops. I can't get SSL sites at all.

I haven't made any changes to the servers before this happened, but 3 of my dedicated servers started this behaviour 5 hours ago, all at the same time.

Any help or suggestions would be appreciated.

Thanks

 

[cPanelChris]

Hello @cpanzy ,

Are you seeing any relevant looking errors in the Apache error log? It will be located at /var/log/apache2/error_log.

 

[cpanzy]

i can see this in that log:

[Sat Oct 24 18:54:57.459437 2020] [mpm_prefork:error] [pid 1917023] AH00161: server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting

 

[cpanzy]

It appears it might be a Slowloris attack

I have installed mod_reqtimeout from this info How to Mitigate Slowloris Attacks | cPanel & WHM Documentation but still can't get sites.