There are many ways to talk to a UNIX machine. Terminal programs typically implement the
secure shell (SSH), telnet and remote login (rlogin) protocols. In addition to those,
X server software provides the necessary control over the display that remote graphical software needs.
Information on recommended terminal and Xserver software for MacOS and MS Windows is at
www.dartmouth.edu/~rc/help/faq/connect.html.
Telnet and rlogin authenticate in clear text over the network, and so are insecure to network sniffers.
Secure connections (username and password never appear on the network except in encrypted form)
are mandatory for all logins to Dartmouth Research Computing systems.
