Domain Name Definition A domain name is a unique name that identifies a website. For example, the domain name of the Tech Terms Computer Dictionary is “techterms.com.” Each website has a domain name that serves as an address, which is used to access the website. Whenever you visit a website, the domain name appears in the address ..
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VPN Definition Stands for “Virtual Private Network” (not a successor to the UPN television network). VPN is a network term that most computer users don’t need to know, but at least you can impress your friends by talking about it. A virtual private network is “tunneled” through a wide area network WAN such as the Internet. This ..
Domain Definition While the term “domain” is often used synonymously with “domain name,” it also has a definition specific to local networks. A domain contains a group of computers that can be accessed and administered with a common set of rules. For example, a company may require all local computers to be networked within the ..
Mail Server Definition A mail server (or email server) is a computer system that sends and receives email. In many cases, web servers and mail servers are combined in a single machine. However, large ISPs and public email services (such as Gmail and Hotmail) may use dedicated hardware for sending and receiving email. In order for a computer system to ..
ISP Definition Stands for “Internet Service Provider.” An ISP provides access to the Internet. Whether you’re at home or work, each time you connect to the Internet, your connection is routed through an ISP. Early ISPs provided Internet access through dial-up modems. This type of connection took place over regular phone lines and was limited to 56 Kbps. ..
IMAP Definition Stands for “Internet Message Access Protocol” and is pronounced “eye-map.” It is a method of accessing e-mail messages on a server without having to download them to your local hard drive. This is the main difference between IMAP and another popular e-mail protocol called “POP3.” POP3 requires users to download messages to their ..
POP3 Definition Stands for “Post Office Protocol.” POP3, sometimes referred to as just “POP,” is a simple, standardized method of delivering e-mail messages. A POP3 mail server receives e-mails and filters them into the appropriate user folders. When a user connects to the mail server to retrieve his mail, the messages are downloaded from mail ..
Hacker Definition While this term originally referred to a clever or expert programmer, it is now more commonly used to refer to someone who can gain unauthorized access to other computers. A hacker can “hack” his or her way through the security levels of a computer system or network. This can be as simple as ..
SSH Definition Stands for “Secure Shell.” SSH is a method of securely communicating with another computer. The “secure” part of the name means that all data sent via an SSH connection is encrypted. This means if a third party tries to intercept the information being transferred, it would appear scrambled and unreadable. The “shell” part of ..
NNTP Definition Stands for “Network News Transfer Protocol.” NNTP is the protocol used to connect to Usenet servers and transfer newsgroup articles between systems over the Internet. It is similar to the SMTP protocol used for sending email messages, but is designed specifically for newsgroup articles. NNTP enables both server/server and client/server communication. NNTP servers, for example, can communicate with each other ..
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