Ports Flashcards

1
Q

Telnet telecommunication network

A

TCP 23, telecommunication network. Doesn’t encrypt data.

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2
Q

SSH secure shell

A

TCP 22, like telnet but secure, encrypts data

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3
Q

DNS domain name system

A

UDP 53, converts names to IP addresses

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4
Q

SMTP simple mail transfer protocol

A

TCP 25, simple mail transfer server to server

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5
Q

SFTP secure file transfer protocol, otherwise known as SSH

A

TCP 22, uses SSH to make happen. File transfers.

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6
Q

FTP file transfer protocol

A

TCP 20 (active mode transfer), 21 (control).

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7
Q

TFTP trivial file transfer protocol

A

UDP 69

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8
Q

DHCP dynamic host configuration protocol

A

UDP 67, 68. Automated configuration of IP addresses. Requires DHCP server.

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9
Q

HTTP hypertext transfer protocol

A

TCP 80, Web server communication

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10
Q

HTTPS hypertext transfer protocol secure

A

TCP 443

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11
Q

SNMP simple network management protocol

A

UDP 161, gathers stats from network devices

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12
Q

RDP Remote Desktop protocol

A

TCP 3389

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13
Q

NTP network time protocol

A

UDP 123

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14
Q

SIP session initiation protocol

A

TCP 5060, 5061 (VOIP voice over internet protocol, IP telephony)

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15
Q

SMB server message block

A

TCP 445, also known as CIFS (common internet file system)

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16
Q

POP

A

TCP 110, receive emails from server

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17
Q

IMAP4 internet mail access protocol

A

TCP 143, storing and receiving emails from simple mail transfer

18
Q

LDAP lightweight directory access protocol

A

TCP 389, enables anyone to locate data about organisations, individuals, and resources like files and devices in a network whether on the public internet or a corporate intranet

19
Q

LDAPS lightweight directory access protocol secure

A

TCP 636, secure LDAP, allows encryption

20
Q

H.323

A

TCP 1720, set up and manage VOIP sessions

21
Q

TCP 23

A

Telnet

22
Q

TCP 22

A

SSH, SFTP

23
Q

UDP 53

A

DNS

24
Q

TCP 25

A

SMTP

25
Q

TCP 20

A

FTP active mode transfer

26
Q

TCP 21

A

FTP control

27
Q

UDP 69

A

TFTP

28
Q

UDP 67

A

DHCP

29
Q

UDP 68

A

DHCP

30
Q

TCP 80

A

HTTP

31
Q

TCP 443

A

HTTPS

32
Q

UDP 161

A

SNMP

33
Q

TCP 3389

A

RDP

34
Q

UDP 123

A

NTP

35
Q

TCP 5060

A

SIP/VOIP

36
Q

TCP 5061

A

SIP/VoIP

37
Q

TCP 445

A

SMB

38
Q

TCP 110

A

POP

39
Q

TCP 143

A

IMAP4

40
Q

TCP 389

A

LDAP

41
Q

TCP 636

A

LDAPS

42
Q

TCP 1720

A

H.323 (VOIP)