worker_connections 51200;? Nginx

Stealth

Hello,
what have you set this in Nginx? When Google it, all people have 768 or 1024 for optimal run. aaPanels default is 51200? It is correct?

Yamiraan

anyone can help with this?

idflorin

Yamiraan with what?
worker_connections 51200; is basically equal with no limits

Yamiraan

should we apply some limit ? like 1024?

idflorin

Yamiraan why? it's working fine as it is.

adis0308

Why does nginx use multiple processes? In previous versions of aaPanel, there was only one nginx process and it worked fine. When I installed the latest aaPanel nginx used multi process and it caused the cpu usage to be 100%.
Here is the previous version of aaPanel after updating to the latest version

Here the latest version of aaPanel is installed on the new server

idflorin

adis0308 try google first

The only reason nginx uses multiple processes, is to make full use of multi-core, multi-CPU and hyper-threading systems. Even with SMP support, the kernel cannot schedule a single thread of execution over multiple CPUs. It requires at least one process or thread per logical CPU.

adis0308

idflorin Then why the multi-thread makes my server down? CPU usage becomes high 70%-100%. How do I disable it?

aaPanel_Kern

adis0308
Hello, I suggest you to check whether the website is attacked by DDOS and cc

adis0308

aaPanel_Kern So the solution you give is how to ward off DDOS attacks? Do I have to change the domain? Because I have changed server and always having the same problem.

idflorin

adis0308 did you tried free firewall for nginx?

Yamiraan

@idflorin do you offer a paid support to optimize server? i tried many things but as im non technical person still facing attack and high cpu issues
yamiraantv
is my skype if you dont bother to add me there

Thanks

aaP_vonwallace

Fail to ban for your website

aaP_vonwallace

Also look at the traffice comming in and see what url it is hitting

aaP_vonwallace

another thing to consider is putting it behind cloudflare

adis0308

Problem solved after I installed free firewall for nginx. Thanks...

darb

it (nginx free firewall) is not great, but better than nothing; you should try and install modsecurity.

it would be nice to see how to configure nginx to a single process.

99% of users are installing on a VPS where you dont have access to multiple cores and if you do, it is probably only two.