Well-Known Ports for Memorization Flashcards

1
Q

FTP

A

21 TCP

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2
Q

SSH, SCP, SFTP

A

22 TCP/UDP

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3
Q

Telnet

A

23 TCP/UDP

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4
Q

SMTP

A

25 TCP

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5
Q

DNS

A

53 TCP/UDP

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6
Q

TFTP

A

69 UDP

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7
Q

Kerberos

A

88 TCP/UDP

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8
Q

POP3

A

110 TCP

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9
Q

NNTP

A

119 TCP

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10
Q

RPC/DCOM-scm

A

135 TCP/UDP

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11
Q

NetBIOS

A

137-139 TCP/UDP

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12
Q

IMAP

A

143 TCP

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13
Q

SNMP

A

161 UDP

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14
Q

SNMPTRAP

A

162 TCP/UDP

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15
Q

LDAP

A

389 TCP/UDP

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16
Q

HTTPS

A

443 TCP

17
Q

SMB

A

445 TCP

18
Q

SMTP with SSL/TLS

A

465/587 TCP

19
Q

Syslog

A

514 UDP

20
Q

LDAP SSL/TLS

A

636 TCP/UDP

21
Q

iSCSI

A

860 TCP

22
Q

FTPS

A

989/990 TCP

23
Q

IMAP4 with SSL/TLS

A

993 TCP

24
Q

POP3 (SSL/TLS)

A

995 TCP

25
Q

Ms-sql-s

A

1433 TCP

26
Q

RADIUS (alternative)

A

1645/1646 UDP

27
Q

L2TP

A

1701 UDP

28
Q

PPTP

A

1723 TCP/UDP

29
Q

RADIUS

A

1812/1813 UDP

30
Q

FCIP

A

3225 TCP/UDP

31
Q

iSCSI Target

A

3260 TCP

32
Q

RDP

A

3389 TCP/UDP

33
Q

Diameter

A

3868 TCP

34
Q

Syslog over TLS

A

6514 TCP

35
Q

HTTP

A

80 TCP