With this simple tutorial I will explain how to install Nessus client (nessus) and Nessus Daemon (nessusd) and properly register it, so you don’t end up with the limitations of a non-registered version of the vulnerability scanner.
Installing:
I personally use apt-, however, you may choose any other package manager.
apt-get install nessus nessusd -y
This will install the [...]

There seems to be a certain amount of confusion within the security industry about the difference between Penetration Testing and Vulnerability Assessment, they are often classified as the same thing when in fact they are not.
I know Penetration Testing sounds a lot more exciting, but most people actually want a VA not a pentest, many [...]

Well seen as though I tell the others to do some kind of introduction, probably I should do one for myself too.
Then
I started out with a Spectrum ZX-81 back in the olden days, typing whole games out of the Spectrum magazines I picked up from charity shops.

Yah it had no tape drive, no disk drive, [...]

This is actually a very interesting debate.
Just to introduce if you don’t know..
What is Penetration Testing
A penetration test is a method of evaluating the security of a computer system or network by simulating an attack by a malicious cracker. The process involves an active analysis of the system for any weaknesses, technical flaws or vulnerabilities. [...]