The article is the next in a series by a pen tester (someone who attempts to hack into computer systems to find vulnerabilities) on their journey to master the Linux operating system.
The focus of this part is Linux networking, which is a crucial element for a pen tester.
IP addresses and subnet masks are explained in simple terms with relatable analogies: IP addresses are like street addresses for computers on a network; subnet masks are like ways of dividing the network up into neighbourhoods.
More complex topics such as routing and scanning are also discussed in the article and include tips and relatable scenarios to help the reader understand these concepts.
The article concludes by encouraging the reader to plunge in and start experimenting with Linux commands to gain a deeper understanding of networking.