mosh-with-jump

Summary

mosh-with-jump is a Mosh wrapper that supports a single jump/proxy server like ssh -J $jump_server. It does so by starting mosh-server on the target server via the jump server and then proxying UDP packets through the proxy server.

Examples

Using a jump server

./mosh-with-jump -J $jump_server $destination

Using a jump server with a specific SSH port

./mosh-with-jump -S 2022 -J $jump_server $destination

With ports specified (for the target server)

./mosh-with-jump -p 61000:61100 -J $jump_server $destination

With all options specified

    ./mosh-with-jump -S 2022 -p 61000:61100 -J $jump_server $destination

Using no jump server (just calls mosh)

./mosh-with-jump $destination

Requirements

mosh-with-jump was written with some portability in mind and uses some fairly common Unix utilities. All machines involved must have SSH. Only the client and target machines need to have Mosh. The proxy server uses socat to proxy and ss to query for in-use ports.