mod_pagespeed by google inc, can help you get 100/100 in google pagespeed. You will not get 100/100 straight out of the box, but with some tweaking we might get near.
I will try to help you getting started with mod_pagespeed for Apache on CentOS 7, you might be able to use this guide with other distros.
Using CentOS firewall daemon can help secure your server. This might help protect you from data theft, and unwanted server access.
Here are some basic CentOS 7 modifications for Linux nginx MariaDB PHP.
Use your favorite editor when editing files. I prefer vim, but if you want to use nano or some other please do that.
If you want to backup a disk or just copy disk to new source dd is the command to do this.
PV(Pipe View) is a good tool to show progress of transfer, but to use PV we might need a size so the % is correct.
There are to commands that might help finding the commands you are looking for.