php cache

Hello to all,
I am new cwp. I would install apcu, memcached, opcache and varnish, on a cwp installed on digitalocean whit php 5.6.
Varnish is installed alone, memcached I found a guide on the forum, for apcu and opcache  how do?

P.S. I'm not a big server expert ...

Hi.

You can not using memcached with other things. You have to choose something one. Or Memcached, or APC, or Opcache or something else.

Why not?
do different things, apcu is user cache, memcached dynamic web applications and databases, opcache php code, varnish http accelerator.
I already use all together on another server, and the results are excellent.

this are incompatible with suphp
varnish cache is the only option

I do not know very well suPHP. What is it? What does he do? Why is it here? it is necessary for webpanel?

suPHP is a tool for executing PHP scripts with the permissions of their owners. higher in security and limitation also applied i.e. you can't use memcached, apcu, xcache

but I'm forced to use suPHP? I can not use a normal php? is part of centos webpanel? You can not remove / replace?

Hello.

If you want to use a non-standart things, you have to configure it yourself.

To run my sites, I just need apache, php and mysql, possibly updated versions.

I would use centos webpanel for management of domains, open database, mysql management (phpMyAdmin) and some cronjob.

I need no more.

At this point, I can uninstall suPHP and do a standard install a LAMP server? eg:https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-centos-6

Maintaining centos webpanel? Centos webpanel understands standard LAMP server? It operates everything at once, or you have to reconfigure anything?

(All this mess because I already have another server, overworked due to the scans of new sites by search engines. I would like to open a small server "copy" on digitalocean where to open new sites and leave them for a couple of months when they are scanned, then move on the other server. clearly the two servers must be at least "similar")