Point-of-Presence (POP) Definition
On the Internet, a point-of-presence (POP) is an access point from one place to the rest of the Internet. (POP also stands for the e-mail Post Office Protocol; see POP3.) A POP necessarily has a unique Internet Protocol (IP) address. Your Internet service provider (ISP) or online service provider (such as AOL) has a point-of-presence on the Internet and probably more than one. The number of POPs that an ISP or OSP has is sometimes used as a measure of its si...
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Internet
ISP (Internet service provider) Definition
ISP (Internet service provider) Definition
An ISP (Internet service provider) is a company that provides individuals and other companies access to the Internet and other related services such as Web site building and virtual hosting. An ISP has the equipment and the telecommunication line access required to have a point-of-presence on the Internet for the geographic area served. The larger ISPs have their own high-speed leased lines so that they are less dependent on the telecommunication p...
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Tor browser
Tor browser
The TOR (the onion routing) browser is a web browser designed for anonymous web surfing and protection against traffic analysis. Although Tor is often associated with the darknet and criminal activity, the browser is often used for legitimate reasons by law enforcement officials, reporters, activists, whistle blowers and ordinary security-conscious individuals.
TOR was originally developed by and for the United States Navy to protect sensitive U.S. government communications. Wh...
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