How to install varnish cache on centos [CWP]

Nice i will try it.

I do not see Varnish anyplace on CWP.  I am running CWPpro version: 0.9.8.238
Why dont I have it ?

its under WebServers in left menu

Doing that way Admin, it doesn't work, when I click after on Varnish Conf (under apache>webservers tab), it is said that it is not installed :/

More generally, there's such bugs if I want to activate Apache+Nginx+Varnish...same issue with Apache+Nginx...I think I will remove that CWP and try Webmin instead, I lose time with this CWP :/

hello, my server only have port 80 and 443 opend. All the rest are close, my server is Apache & Varnish Cache & Nginx Reverse Proxy.

So i need open port 82 and 8181?

Result https://www.whatismyip.com/server-headers-check

HTTP/1.1 200 OK
nginx/1.14.0
Mon, 16 Jul 2018 09:50:20 GMT
text/html; charset=utf-8
chunked
keep-alive
Accept-Encoding
200182
0
1.1 varnish (Varnish/5.2)
bytes
HIT from Backend

only ports 80 and 443 are needed others not for clients as they will only use those for http and https

Good thanks 

Can I use Varnish and Nginx both on CWP? I have a website on local that i want to move here but it is using both varnish cache and nginx. Both requires root access to install and configure.