..., Dropbear can compile to a 110kB statically linked binary with uClibc on x86 (only minimal options selected) Dropbear server implements X11 forwarding and authentication-agent forwarding for OpenSSH clients. The server, client, keygen, and key converter can be compiled into a single binary (like busybox) Features can easily be disabled when compiling to save space. The multi-hop mode uses SSH TCP forwarding to tunnel through multiple SSH hosts in a single command.