Your TV's RS-232 port is a seriously useful automation tool - how to unlock its full potential ...

That mysterious port on your TV labeled "Service Only" isn't there by accident. What it actually does, and whether you can use it yourself, is worth knowing.

If shutting off telnet access and insisting that all system-to-system connections use ssh isn’t enough to toughen your system’s hide, here’s another way to make your servers just a little more ...