Firewalls are typically configured to reject access requests from unrecognized sources
Information Networking Institute Information Networking Institute College of Engineering Carnegie Mellon University ] According to the Iranian government, one of the NIN's main objectives is to break the monopoly of the Internet. Examples of end-to-end encryption include HTTPS for web traffic, PGP for email, OTR for instant messaging, ZRTP for telephony, and TETRA for radio. Fears such as this have led to numerous lawsuits such as Hepting v. AT&T. The hacktivist group Anonymous has hacked into government websites in protest of what it considers "draconian surveillance". An Ethernet repeater with multiple ports is known as an Ethernet hub. It carries pulses of light that represent data via lasers and optical amplifiers. Some advantages of optical fibers over metal wires are very low transmission loss and immunity to electrical interference. Optic fibers can be used for long runs of cable carrying very high data rates, and are used for undersea cables to interconnec...