Linux Administration Cookbook

Multiple hosts

While the example given previously is relatively simple, it's worth noting that you can do some pretty complex things with ProxyJump.

You can list hosts, as the manual page suggests, and you can also chain hosts, as follows:

Host * Port 22Host CentOS2-V4 Hostname 192.168.33.11 User vagrantHost CentOS3-V4 Hostname 192.168.33.12 User vagrant ProxyJump CentOS2-V4Host CentOS4-V4 Hostname 192.168.33.14 User vagrant ProxyJump CentOS3-V4

The advantage of ProxyJump itself should be obvious: using this technique, you can create a setup where it only takes one command from your local machine to access a remote and otherwise inaccessible box.

Generally, you might use ProxyJump in an environment with one ingress server.

ProxyJump also ...