Jump server

Imagine you want to go to your friend's house to play, but their house has a big gate and you can't get in without their permission. So, first you go to a grown-up who has a key to the gate to open it for you. This grown-up is like a jump server.

In computer terms, a jump server is like a grown-up who has permission to access a computer system that you can't directly access. For example, if you want to control a server in a company's office, but you're not physically there, you need to go through a jump server to get access.

The jump server acts as a middleman between you and the server. You connect to the jump server and then it redirects you to the server you want to control.

Think of it as a guard at the entrance of a secret club. To enter the club, you have to pass through the guard at the gate first. Similarly, to access a secure network or computer system, you have to pass through a jump server that verifies your identity and allows you access.

So, a jump server is like a trusted friend who can help you get into a place you can't access on your own.