The search for a small Secure Shell server to fit on a laptop with 4 megs ram and no hard disk was fruitless, so Matt Johnston decided to write his own, and Dropbear is the result. It implements various features of the SSH 2 protocol, including X11 and Authentication Agent forwarding. Dropbear is Open Source software, distributed under a MIT-style license. It includes a server, client and tools to generate server keys and to convert OpenSSH keys for Dropbear. Features * A small memory footprint - Dropbear can compile to a 110kB statically linked binary with uClibc (and only minimal options selected). * Implements X11 forwarding, and authentication-agent forwarding for OpenSSH clients * Compatible with OpenSSH ~/.ssh/authorized_keys public key authentication * Features can easily be disabled when compiling to save space. * Preliminary TCP forwarding support (-L style only)