These articles are going to be mostly about IT security (in practice as opposed to theory) and some of them take a look at the ultracrepidarianism on this subject that's easy to find.

Ultracrepidarianism is the habit of giving opinions and advice on matters outside of one's knowledge.

2018 password aging often not justified
2017 file checks (in python) related to OSCAP
2017 kernel program ideas
2017 anagrams in python
2016 sudo policy basics
2015 Starting Object-Oriented Perl sudoku solver
2015 Explanation of an old bug in HP-UX rlpdaemon
2014 (updated 2017) Security problems with find xargs rm