Ports and Protocols Flashcards

1
Q

FTP data port (active mode)

A

TCP 20

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2
Q

FTP control Port

A

TCP 21

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3
Q

SSH

A

TCP 22

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4
Q

SCP (uses SSH)

A

TCP 22

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5
Q

SFTP (uses SSH)

A

TCP 22

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6
Q

Telnet

A

TCP 23

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7
Q

SMTP

A

TCP 25

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8
Q

TACACS+

A

TCP 49

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9
Q

DNS name queries

A

UDP 53

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10
Q

DNS zone transfers

A

TCP 53

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11
Q

TFTP

A

UDP 69

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12
Q

HTTP

A

TCP 80

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13
Q

Kerberos

A

UDP 88

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14
Q

POP3

A

TCP 110

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15
Q

SNMP

A

UDP 162

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16
Q

SNMP Trap

A

UDP 162

17
Q

NetBIOS (TCP rarely used)

A

TCP/UDP 137

18
Q

NetBIOS

A

UDP 138

19
Q

NetBIOS

A

TCP 139

20
Q

IMAP4

A

TCP 143

21
Q

LDAP

A

TCP 389

22
Q

HTTPS

A

TCP 443

23
Q

SMTP SSL/TLS

A

TCP 465

24
Q

IPsec (for VPN with IKE)

A

UDP 500

25
Q

LDAP/ SSL

A

TCP 636

26
Q

LDAP/TLS

A

TCP 636

27
Q

IMAP SSL/TLS

A

TCP 993

28
Q

POP SSL/TLS

A

TCP 995

29
Q

L2TP

A

UDP 1701

30
Q

PPTP

A

TCP 1723

31
Q

Remote Desktop Protocol (RDP)

A

TCP/UDP 3389

32
Q

Microsoft SQL Server

A

TCP 1433