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FTP - File Transfer Protocol. A TCP/IP protocol that permits transfering or files between computer systems. Not secure. |
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SSH - Secure Shell is a remote administration tool that can serve as a secure alternative to using Telnet to remotely access and configure a device like a router or switch. Secure. |
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Telnet - Telnet is a protocol that functions at the application layer of the OSI model, providing terminal-emulation capabilities. Not secure. |
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SMTP - Simple Mail Transfer Protocol is a protocol for sending email between SMTP servers. Clients typically use either IMAP or POP to access their email server and use SMTP to send email. |
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DNS - Domain Name System. Is used to translate hostnames into IP addresses. DNS is an example of a protocol that uses both UDP and TCP. |
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HTTP - Hypertext Transfer Protocol is the protocol used for communication between a web server and a web browser. |
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POP3 - The Post Office Protocol is a protocol for receiving email from a mail server. Currently running version 3. |
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