Chapter 6
System Maintenance
Section 1
Monitor the System
In this video we will learn how to monitor the system. The things we learn to monitor ranges from everything from the CPU and RAM usage, to I/O performance, to listing open ports and established connections. - We begin this video by learning how to use top tool and how to interpret the “load average” of the system. - Then we move on to install and learn two other tools, namely iotop and iptraf. - The last tool we learn in this video is "ss". This tool is used for two things, both to view open ports (listening ports/daemons), as well as viewing currently established connections to this machine.