Spinner is useful for keeping telnet and ssh links from dropping due to inactivity. Many firewalls and some ISPs drop connections when they are perceived as idle. By having spinner running, the server is constantly sent a tiny amount of data over the link, preserving the connection. Spinner thus acts as a keep-alive. It displays a little "spinning" ASCII character in the top left corner of your terminal. It supports any terminal capable of handling VT100-style escape codes. Spinner can also function transparently by only sending null characters to the terminal. In this mode Spinner supports any terminal. It also has a mode called "Ghost in the Machine" in which you can use Spinner to write the spinner character to any TTY, not just your own.
rdesktop Console is a Perl/Tk based utility for Linux to work with multiple rdesktop servers. It works with rdesktop 1.1.0 from www.rdesktop.org to manage multiple sessions for logging into Windows NT and 2K Terminal Servers. It allows creation and management of a simple list of servers and a default resolution for the terminal windows.