Glances is a little yet powerful command line utility to monitor system resources like cpu, ram, disk usage, network usage on Linux systems
How to install VirtualBox guest additions in Fedora 20 Heisenbug
Tutorial on how to use collectl command to monitor system resources like cpu, disk io, network on a linux system.
How to use the nmon command to monitor system resources like cpu, ram and network on Linux
How to use the Inxi command to gather system and hardware information on Linux servers and desktops.
Configure Vsftpd (ftp server) to use SSL/TLS encryption on Ubuntu and CentOS based Linux systems.
This tutorial explains how to use the ps command on linux with examples