Ssh server is an Android application developed by The Olive Tree that enables users to transfer files securely using protocols SCP and SFTP. It also has a beta version of a command line feature. However, the command line needs "/system/bin/sh" preinstalled to function.

The application offers intents for starting and stopping the server, which can be used with Tasker or the "Autostart and StaY!" application to automate the process. During testing, I used WinSCP and FileZilla for secure file transfer and Putty for command line access, and all worked well.