Netsniff-ng

Okay kiddo, so you know how when you use the internet, you're basically sending messages and receiving messages from other computers all over the world?

Well, netsniff-ng is a special program that helps grown-ups keep an eye on those messages to make sure everything is working like it's supposed to.

It's kind of like a spy tool - it can catch all the messages going back and forth, like an undercover agent listening in on conversations.

And then it can show the grown-ups who are using it things like:

- what kind of messages are being sent and where they're going
- if there are any problems with the messages (like they're being sent too slowly or they're getting lost)
- how long it takes for messages to travel from one place to another

It's really helpful for making sure the internet works smoothly and securely, so you can watch your YouTube videos and play your online games without any glitches.