Port Numbers 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

HTTP

A

80

TCP

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8
Q

Kerberos (authentication with tickets)

A

88

TCP/UDP

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9
Q

POP3

A

110

TCP

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10
Q

NNTP (Network News Transfer Protocol)

A

119

TCP

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11
Q

RPC/DCOM-scm (Remote Procedure Call locates DCOM ports)

A

135

TCP/UDP

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12
Q

NetBIOS

A

137-139

TCP/UDP

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13
Q

IMAP

A

143

TCP

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14
Q

SNMP

A

161

UDP

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15
Q

SNMPTRAP

A

162

TCP/UDP

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16
Q

LDAP

A

389

TCP/UDP

17
Q

HTTPS

A

443

TCP

18
Q

SMB

A

445

TCP

19
Q

SMTP with SSL/TLS

A

465/587 TCP

20
Q

Syslog

A

514

UDP

21
Q

LDAP SSL/TLS

A

636

TCP/UDP

22
Q

iSCSI (linking data storage facilities over IP)

A

860

TCP

23
Q

FTPS

A

989/990

TCP

24
Q

IMAP4 with SSL/TLS

A

993 TCP

25
Q

POP3 (SSL/TLS)

A

995 TCP

26
Q

Ms-sql-s

A

1433 TCP

27
Q

RADIUS (alternative)

A

1645/1646 UDP

28
Q

L2TP (Layer 2 Tunnel Protocol - VPN tunnel with no security)

A

1701 UDP

29
Q

PPTP (VPN protocol with built in security)

A

1723 TCP/UDP

30
Q

RADIUS

A

1812/1813 UDP

31
Q

FCIP (Fibre Channel IP)

A

3225 TCP/UDP

32
Q

iSCSI Target

A

3260 TCP

33
Q

RDP

A

3389 TCP/UDP

34
Q

Diameter (replacement for RADIUS)

A

3868 TCP

35
Q

Syslog of TLS

A

6514 TCP