Latest Articles

Adding and Removing sshd instances on CentOS 6

This is a process and a couple of script to allow you to setup an additional sshd service on an alternate port. The two scripts...

Late Night Rant: Facebook

According to media reports, since 2012, millions of Facebook and Instagram logins and plaintext passwords have been sitting on some internal Facebook system, accessible...

Notes on ownCloud configuration

The ownCloud file sharing application has been around for some time now, but somehow evaded my attention. My limited imagination makes me say "think...

The Unix Oriental

Placed quite appropriately in the "Security" category - my favorite Oriental cocktail recipe. Distinguishing it from the classic preparation, are absence of sweet vermouth...

Multi-Dimensional Arrays in Bash

Bash does not support multi-dimensional arrays, but there is a way to imitate this functionality, if you absolutely have to. As a quick example, here's...

Asciinema Notes

Asciinema is an awesome tool for recording your console sessions. It's great for documenting processes and, in general, showing people how shit works: one...

Measure DNS Server Performance

This is not an entirely proper way to benchmark a DNS server, but, in a pinch, it should give you some idea of its...

The Facebook Fracas

The Facebook privacy saga is getting ridiculous. You’re using a free service that you signed up for - nobody was holding a gun to...

Generating and Running Multiple Scripts

Admittedly, this has a limited range of practical applications and is more of a scripting exercise. The command shown here generates a bunch of...