Today, it is becoming more and more common for Penetration Testers, Security Researchers, Red Teams, and the like to require some sort of tunneling in and out of an organization’s infrastructure. Internal Red Teams, especially, who may need to cordon off their Command and Control Infrastructure will likely employ SSH (or VPN, but that will be a different post) tunnels from their External Infrastructure (such as callback servers, web hosting, mail, etc) to the Internal assets. Setting up these tunnels can become quite convoluted and difficult to manage, especially once the number of hops or jumps between servers increase.

https://medium.com/maverislabs/proxyjump-the-ssh-option-you-probably-never-heard-of-2d7e41d43464

Proxyjump, the SSH option you probably never heard of

Today, it is becoming more and more common for Penetration Testers, Security Researchers, Red Teams, and the like to require some sort of tunneling in and out of an organization’s infrastructure…

^{Khris Tolbert (Maveris Labs)}