TCP/UDP Ports Flashcards by James Micheli

TCP 443

HTTPS

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TCP 80

HTTP

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UDP 53

DNS

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TCP 20

FTP Active Mode Data

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TCP 21

FTP Control Mechanism to Manage FTP

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TCP 22

SSH Secure Shell

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TCP 23

Telnet

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TCP 110

POP3 Email

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TCP 143

IMAP4 Email

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TCP 25

SMTP Send email from device/server

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TCP 3389

RDP Remote Desktop Protocol

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TCP 445

SMB Server Message Block, file transfer across network

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TCP 548

Apple Filing Protocol

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TCP/UDP 427

Service Location Protocol

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UDP 67/68

DHCP

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UDP 137

SMB Network Device List Population

Conectionless UDP 138 or Connected TCP 139

SMB Data send

TCP/UDP 389

LDAP Lightweight Directory Access Protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network.

UDP 161

SNMP Simple Network Management Protocol gathers statistics and allows you to make configuration changes. Manages all devices within a network.