Common Ports

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/31

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 8:18 PM on 5/21/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai

No analytics yet

Send a link to your students to track their progress

32 Terms

1
New cards

tcp/20

FTP data port?

2
New cards

tcp/21

FTP control port?

3
New cards

tcp/22

SFTP port?

4
New cards

tcp/22

SSH port?

5
New cards

tcp/23

Telnet port?

6
New cards

tcp/25

SMTP port?

7
New cards

tcp/587

SMTPS port?

8
New cards

tcp/143

IMAP port?

9
New cards

tcp/110

POP3

10
New cards

udp/53

DNS port for small queries?

11
New cards

tcp/53

DNS port for large queries?

12
New cards

udp/67

DHCP port for server communication?

13
New cards

udp/68

DHCP port for client communication?

14
New cards

udp/69

TFTP port?

15
New cards

tcp/80

HTTP port?

16
New cards

tcp/443

HTTPS port?

17
New cards

udp/123

NTP port?

18
New cards

udp/161

SNMP management port?

19
New cards

udp/162

SNMP trap port?

20
New cards

tcp/389

LDAP port?

21
New cards

tcp/636

LDAPS port?

22
New cards

tcp/445

SMB port?

23
New cards

udp/514

Syslog port?

24
New cards

tcp/1433

MS SQL port?

25
New cards

tcp/3389

RDP port?

26
New cards

tcp/5060 or udp/5060

SIP insecure port?

27
New cards

tcp/5061 and udp/5061

SIP secure port?

28
New cards

Ports 0 - 1,023

well known service ports

29
New cards

Ports 1,024 - 49,151

other service ports

30
New cards

Ports 49,152 - 65,535

ephemeral ports

31
New cards

Socket

Contains IP Address and Port number and allows server to handle many connections to a single service.

32
New cards

Connection

Combination of Server IP and Port and Client IP and Port