TCP/UDP Ports Flashcards by Mason Fielden

Q

FTP (File Transfer Protocol - Data)

A

20

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Q

FTP (File Transfer Protocol – Control)

A

21

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Q

SSH / SFTP (Secure Shell / SSH File Transfer Protocol)

A

22

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Q

Telnet (Telecommunication Network)

A

23

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Q

SMTP (Simple Mail Transfer Protocol)

A

25

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Q

DNS (Domain Name System)

A

53

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Q

DHCP (Dynamic Host Configuration Protocol)

A

67/68

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Q

TFTP (Trivial File Transfer Protocol)

A

69

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Q

HTTP (Hypertext Transfer Protocol)

A

80

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Q

POP3 (Post Office Protocol version 3)

A

110

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Q

NTP (Network Time Protocol)

A

123

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Q

NetBIOS (Network Basic Input/Output System)

A

137-139

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Q

IMAP (Internet Message Access Protocol)

A

143

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Q

SNMP (Simple Network Management Protocol)

A

161/162

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Q

LDAP (Lightweight Directory Access Protocol)

A

389

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Q

HTTPS (Hypertext Transfer Protocol Secure)

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A

443

Q

SMB (Server Message Block)

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A

445

Q

Syslog (System Logging Protocol)

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A

514

Q

SMTP Submission (Simple Mail Transfer Protocol - TLS)

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A

587

Q

LDAPS (Lightweight Directory Access Protocol Secure)

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A

636

Q

IMAPS (Internet Message Access Protocol Secure)

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A

993

Q

POP3S (Post Office Protocol 3 Secure)

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A

995

Q

Microsoft SQL Server

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A

1433

Q

MySQL (My Structured Query Language)

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A

3306

RDP (Remote Desktop Protocol)

3389

Kerberos (Authentication Protocol)

88

SMTPS (Simple Mail Transfer Protocol Secure)

465

Elasticsearch (Used for SIEM/Log Search)

9200

Ephemeral Ports (Temporary TCP Connections)

49152–65535

Secure Syslog (Syslog over TLS)

6514