lshell is a shell coded in Python, that lets you restrict a user's environment to limited sets of commands, choose to enable/disable any command over SSH (e.g. SCP, SFTP, rsync, etc.), log user's commands, implement timing restriction, and more.
Plume is a complete set of packages to create and administrate a network of diskless computers used as X terminals. Workstations root file system is extensively based on Debian with as few new packages as possible.
Smartconn is to create end-to-end connectivity at all the levels to various unix servers and working on them remotely with minimum over head and faster response.