If you administer multiple Linux servers, Jack Wallen has an easy script you can use to run commands on all of those servers at once.

Don’t despair – in those situations, you can run multiple instances of Tomcat on a single GNU/Linux server. Each will use the same binary, but turn to different areas for data.

I tested this script against a server that I knew had a vulnerable Log4j package installed, and it correctly tagged it. Here’s how you can run that same script on your Linux servers to find out ...

GNU Screen allows you to run multiple console applications within a single terminal window, and switch between them easily with the keyboard—but it gets even better: it also allows you to save ...