SSH (Secure Shell)
SSH provides secure communication between two computers. An ssh connection is required to connect from a desktop computer to Helix or Biowulf.
There are several secure options for transferring files to and from Helix and Biowulf.
Lynx is a WWW browser that does not require a graphics terminal -- it will display web pages as text on any vt100 type terminal. On helix, type 'man lynx' for more information.
GNU wget is a utility for non-interactive download of files from the Web. It supports HTTP, HTTPS, and FTP protocols, as well as retrieval through HTTP proxies. On helix, type 'man wget' for more information.