As many IT folks, I have my VPS (for instance, this website is running on it). I use this virtual server mainly to host my blog and some other websites that I own. The main reason why I use a "server" (and not an "hosting solution") is that, in this case, I have complete access to the machine. I like to be able to customize my services from top to bottom, even if it's a simple blog.

If you missed the previous post, you can find it here.

Some years ago I was asked to do a reverse engineering of an older protocol used in automation systems. The goal was to be able to communicate with some equipment already in-place in some industrial buildings nearby. Let me explain.

Important note!

Apparently now RouterOS supports hostnames in address lists (tested in 6.49.2). So this article is superseeded (just add an hostname in the address list to have it resolved dinamically).