Symmetricom S100 manual Gmt, Gps, Html, Https, Ieee, Ietf

SyncServer S100

Firewall

Firewalls are software and hardware systems that define access between two networks, offering protection from outside data that could be harmful, such as a virus sent using the Internet.

GMT

Greenwich Mean Time, the mean solar time of the meridian of Greenwich, England, used until 1972 as a basis for calculating standard time throughout the world.

GPS

Global Positioning System. The GPS is a constellation of ~29 (or more) US Department of Defense satellites orbiting the earth twice a day.

Hash

Also called “hash function” or hashing, used extensively in many encryption algorithms. Hashing transforms a string of characters usually into a shorter, fixed-length value or key. Information in a database is faster to search when you use a hashed key, than if you were to try to match the original data.

HTML

HyperText Markup Language, the computer language used to create pages for the World Wide Web.

HTTP

HyperText Transfer (or Transport) Protocol, the protocol most often used to transfer information from World Wide Web servers to users of the Web.

HTTPS

HTTP over an SSL connection.

Identity Certificate

Also called Digital Certificates. The hash creates a message digest based on the contents of the message. The message is then encrypted using the publisher's private key, then it is appended to the original message.

IEEE

Institute of Electrical and Electronic Engineers, an international organization that sets standards for electrical and computer engineering.

IETF

Internet Engineering Task Force, an international organization which sets standards for Internet protocols in their Request for Comment (RFC) papers.

These papers are numbered (RFC 1305, RFC 868, and so on) and are referred to by engineers worldwide as they work on technologies that support IETF standards.

126 S100 User Guide – Rev. D – June 2005