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

17
Q

SMB

18
Q

SMTP with SSL/TLS

A

465/587 TCP

19
Q

Syslog

20
Q

LDAP SSL/TLS

A

636 TCP/UDP

21
Q

iSCSI

22
Q

FTPS

A

989/990 TCP

23
Q

IMAP4 with SSL/TLS

24
Q

POP3 (SSL/TLS)

25
Ms-sql-s
1433 TCP
26
RADIUS (alternative)
1645/1646 UDP
27
L2TP
1701 UDP
28
PPTP
1723 TCP/UDP
29
RADIUS
1812/1813 UDP
30
FCIP
3225 TCP/UDP
31
iSCSI Target
3260 TCP
32
RDP
3389 TCP/UDP
33
Diameter
3868 TCP
34
Syslog over TLS
6514 TCP
35
HTTP
80 TCP