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Common Ports Flashcards

1
Q

What are the Core Port numbers?

A

20/21 | 22 | 23 |25
53 |(67 / 68) |80
110|(137/138 /139)
143|(161/162) |389
427|443 |445 |548
3389

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2
Q

Port 21 details

A

Protocol: FTP
Port Type: TCP, UDP
Meaning: File Transfer Protocol

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3
Q

Port 22 details

A

Protocol: SSH
Port Type: TCP, UDP

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4
Q

Port 23 details

A

Protocol: Telnet
Port Type: TCP, UDP

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5
Q

Port 25 details

A

Protocol: SMTP
Port Type: TCP, UDP
Meaning: Simple Mail Transfer Protocol

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6
Q

Port 53 details

A

Protocol: DNS
Port Type: TCP, UDP

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7
Q

Port 67 details

A

Protocol: DHCP
Port Type: UDP
Meaning: Dynamic Host Configuration Protocol

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8
Q

Port 68 details

A

Protocol: DHCP
Port Type: UDP

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9
Q

Port 80 details

A

Protocol: HTTP
Port Type: TCP, UDP

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10
Q

Port 110 details

A

Protocol: POP3
Port Type: TCP, UDP
Meaning: Post Office Protocol 3

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11
Q

Port 137 details

A

Protocol: NetBIOS/NetBT
Port Type: TCP, UDP

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12
Q

Port 138 details

A

Protocol: NetBIOS/NetBT
Port Type: TCP, UDP

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13
Q

Port 139 details

A

Protocol: NetBIOS/NetBT
Port Type: TCP, UDP

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14
Q

Port 143 details

A

Protocol: IMAP
Port Type: TCP
Meaning: Internet Message Access Protocol

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15
Q

Port 161 details

A

Protocol: SNMP
Port Type: TCP, UDP
Meaning: Simple Network Management Protocol

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16
Q

Port 162 details

A

Protocol: SNMP
Port Type: TCP, UDP
Meaning: Simple Network Management Protocol

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17
Q

Port 389 details

A

Protocol: LDAP
Port Type: TCP, UDP
Meaning: Lightweight Directory Access Protocol

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18
Q

Port 427 Details

A

Protocol: SLP or AFP
Port Type: TCP, UDP
Meaning: Service Location Protocol
Apple Filling Protocol

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19
Q

Port 443 details

A

Protocol: HTTPS
Port Type: TCP, UDP

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20
Q

Port 445 details

A

Protocol: SMB/CIFS
Port Type: TCP
Meaning:
Service Message Block
Common Internet File System

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21
Q

Port 548 details

A

Protocol: AFP
Port Type: TCP
Meaning: Apple Filling Protocol

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22
Q

Port 3389 details

A

Protocol: ROP
Port Type: TCP, UDP
Meaning: Return Oriented Protocol

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23
Q

FTP details

A

Port: 21
Port Type: TCP,UDP

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24
Q

SSH details

A

Port: 22
Port Type: TCP, UDP

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25
Telnet details
Port: 23 Port Type: TCP, UDP
26
SSH details
Port: 22 Port Type: TCP, UDP
27
Telnet details
Port: 23 Port Type: TCP, UDP
28
SMTP details
Port: 25 Port Type: TCP, UDP
29
DNS details
Port number: 53 Port type: TCP, UDP
30
DHCP details
Port numbers: 67, 68 Port Type: UDP Meaning: Dynamic Host Configuration Protocol
31
HTTP details
Port numbers: 80 Port Type: TCP, UDP
32
POP3 details
Port numbers: 110 Port Type: TCP, UDP
33
NetBIOS/NetBT
Port numbers: 137-139 Port Type: TCP, UDP
34
IMAP details
Port Number: 143 Port Type: TCP Meaning: Internet Message Access Protocol
35
SNMP details
Port Numbers: 161/162 Port Type: TCP, UDP Meaning: Simple Network Management Protocol
36
LDAP details
Port Number: 389 Port Type: TCP, UDP Meaning: Lightweight Directory Access Protocol
37
SLP details
Port Number: 427 Port Type: TCP, UDP Meaning: Service Location Protocol
38
HTTPS details
Port Number: 443 Port Type: TCP, UDP
39
SMB/CIFS
Port Number: 445 Port Type: TCP Meaning: Server Message Block Common Internet File System
40
AFP details
Port Number: 548 **or 427** Port Type: TCP Meaning: Apple Filling Protocol
41
ROP details
Port Number: 3389 Port Type: TCP, UDP Meaning: Return-Oriented Protocol
42
Which of the Core Protocols have a Port Type of only TCP?
AFP, SMB/CIFS, IMAP
43
Which of the Core Protocols is only UDP?
DHCP 67/68
44
Port 3306 details
Port: MySQL/MariaDB Type: TCP, UDP
45
MySQL/MariaDB
Port: 3306 Type: TCP, UDP
46
TFTP
Port: 69 Type: UDP Meaning: Trivial File Transfer Protocol
47
Port 69 Details
Protocol: TFTP Type: UDP Meaning: Trivial File Transfer Protocol
48
LDAPS
Port: 636 Type: TCP Meaning: LDAP over SSL
49
Port 636 details
Protocol: LDAPS Type: TCP Meaning: Light Weight Directory Access Protocol over SSL
50
SIP
Port: 5060/5061 Type: TCP, UDP Meaning: Session Initiation Protocol **Purpose:** Maintaining and terminating, real-time sessions that involve video, voice, messaging, and other communications
51
Port 5060
Protocol: SIP Type: TCP, UDP Meaning: Session Initiation Protocol **Purpose:** Maintaining and terminating, real-time sessions that involve video, voice, messaging, and other communications
52
Port 5061
Protocol: SIP Type: TCP, UDP Meaning: Session Initiation Protocol **Purpose:** Maintaining and terminating, real-time sessions that involve video, voice, messaging, and other communications
53
Syslog
Port: 514 Type: TCP, UDP Meaning: System Log
54
Port 514
Protocol: Syslog Type: TCP, UDP Meaning: System Logging Protocol
55
Splunk
Ports: 9997/9998/8089 Type: TCP
56
Port 9997
Protocol: Splunk Type: TCP
57
Port 9998
Protocol: Splunk Type: TCP
58
Port 8089
Protocol: Splunk Type: TCP
59
Port 500
Protocol: IKE Type: UDP Meaning: Internet Key Exchange **Purpose:** Used by VPNs to set up a security association in the IPsec protocol suit for secure IP communications
60
IKE
Port: 500 Type: UDP Meaning: Internet Key Exchange **Purpose:** Used by VPNs to set up a security association in the IPsec protocol suit for secure IP communications
61
Port 4500
Protocol: IPsec NAT Traversal Type: UDP **Purpose:** Used for VPN traffic to traverse NAT (Network Address Translation) devices.
62
IPsec NAT Traversal
Port: 4500 Type: UDP **Purpose:** Used for VPN traffic to traverse NAT (Network Address Translation) devices.
63
Port 1723
Protocol: PPTP Type: TCP Meaning: Point-to-Point Tunneling Protocol **Purpose:** Used for implementing VPNs but considered less secure than other VPN protocols.
64
Port 1194
Protocol: OpenVPN Type: UDP, TCP for **Purpose:** Used for creating secure VPN tunnels, offering flexibility based on the need for speed (UDP) or reliability (TCP).
65
OpenVPN
Port: 1194 Type: UDP, TCP for **Purpose:** Used for creating secure VPN tunnels, offering flexibility based on the need for speed (UDP) or reliability (TCP).
66
IMAPS
Port: 993 Type: TCP Meaning: IMAPS over SSL **Purpose:** Used for securely accessing emails from a remote server, an encrypted alternative to IMAP.
67
Port 993
Protocol: IMAPS Type: TCP Meaning: IMAPS over SSL **Purpose:** Used for securely accessing emails from a remote server, an encrypted alternative to IMAP.
68
Dynamic and High Range Ports
Ports: 49,152 - 65,535 OR 0xC000 - 0xFFFF Often used by custom or malicious applications, including backdoors and Trojans for command and control operations.
69
Name the range of the Well-Known Ports
**0 - 3FF** i.e. 0 - 1023
70
What is range of the Registered Ports?
**0400 - BFFF** 0 - 49,151
71
What is the range of the Dynamic/Private Ports
**C000 - FFFF** 49,152 - 65,535

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