In case there are people out there Googling for it, Caltech's UGCS SSH servers are not resolving (neither to.ugcs.caltech.edu nor sex.ugcs.caltech.edu), but it is possible to log in directly to both the www server and the other servers by name (e.g. bolivar.ugcs.caltech.edu). Alternately, there is Huyle's homepage, where he provides a webmail interface for UGCS e-mail.