Cmake versus Make

https://prateekvjoshi.com/2014/02/01/cmake-vs-make/

Info of your hardware

Gui of your hardware in ubuntu:
lshw-gtk

Information about your display hardware in command line

sudo lshw -C display

Info of CPU

cat /proc/cpuinfo 

Library check

How to check a library in the system and its version

http://serverfault.com/questions/54736/how-to-check-if-a-library-is-installed

ssh 7.2 on ubuntu 14/.4

How to install a version out of current official repositories of ssh into ubuntu

http://stackoverflow.com/questions/36453976/upgrade-openssh-7-2p-in-ubuntu-14-04

Add and external package (such as google chrome) to be updated with the system from external official repository

Follow the steps of the most visible answer in this website.  Authors add the official latest stable version of google chrome to be updated in conjunction with the system.

http://askubuntu.com/questions/510056/how-to-install-google-chrome