Dropbear is a small and lightweight SSH server and client that can replace OpenSSH on any POSIX platform such as GNU / Linux, * BSD, Cygwin … Dropbear is free software since it is released under MIT-style licenses.
Features:
- A small memory footprint suitable for memory-constrained environments.
- Dropbear server implements X11 forwarding, and authentication-agent forwarding for OpenSSH clients.
- Compatible with OpenSSH ~/.ssh/authorized_keys public key authentication.
- The server, client, keygen, and key converter can be compiled into a single binary.
- Multi-hop mode uses SSH TCP forwarding to tunnel through multiple SSH hosts in a single command. dbclient user1@hop1,user2@hop2,destination