Common Ports Flashcards by Kendra Stracuzzi | Brainscape

Q

tcp/20

A

FTP Data

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Q

tcp/21

A

FTP Control

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Q

tcp/23

A

Telnet

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Q

tcp/25

A

SMTP (Simple Mail Transfer Protocol

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Q

tcp/53

A

DNS (Domain Name Services) zone transfers

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Q

tcp/80

A

HTTP (Hypertext Transfer Protocol) web browsing

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Q

tcp/110

A

POP3 (Post Office Protocol version 3)

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Q

tcp/143

A

IMAP (Internet Message Access Protocol)

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Q

tcp/443

A

HTTPS (Hypertext Transfer Protocol Secure)

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Q

tcp/3389

A

RDP (Remote Desktop Protocol)

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Q

upd/53

A

DNS (Domain Name Services) queries

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