Ports Flashcards

1
Q

20

A

FTP (Data) (TCP) - File Transfer Protocol - data transfer

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2
Q

21

A

FTP (Control) (TCP) - File Transfer Protocol - control commands

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3
Q

23

A

Telnet (TCP) - Unencrypted text-based remote login

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4
Q

25

A

SMTP (TCP) - Simple Mail Transfer Protocol - sending emails

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5
Q

67

A

DHCP Server (UDP) - Dynamic Host Configuration Protocol - server

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6
Q

68

A

DHCP Client (UDP) - Dynamic Host Configuration Protocol - client

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7
Q

69

A

TFTP (UDP) - Trivial File Transfer Protocol - simple file transfers

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8
Q

110

A

POP3 (TCP) - Post Office Protocol 3 - email retrieval

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9
Q

123

A

NTP (UDP) - Network Time Protocol - clock synchronization

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10
Q

143

A

IMAP (TCP) - Internet Message Access Protocol - email access

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11
Q

161

A

SNMP (UDP) - Simple Network Management Protocol - network monitoring / SNMP (UDP) - Simple Network Management Protocol - monitoring

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12
Q

162

A

SNMP Trap (UDP) - SNMP notifications/traps

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13
Q

389

A

LDAP (TCP/UDP) - Lightweight Directory Access Protocol - directory services

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14
Q

445

A

SMB (TCP) - Server Message Block - file/printer sharing

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15
Q

465

A

SMTPS (TCP) - SMTP Secure - secure email sending

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16
Q

514

A

Syslog (UDP) - System logging / rsh (TCP) - Remote Shell Command execution

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17
Q

587

A

SMTP (Submission) (TCP) - SMTP mail submission

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18
Q

636

A

LDAPS (TCP/UDP) - LDAP Secure

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19
Q

993

A

IMAPS (TCP) - IMAP Secure

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20
Q

995

A

POP3S (TCP) - POP3 Secure

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21
Q

1433

A

MS-SQL (TCP) - Microsoft SQL Server database connection

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22
Q

1521

A

Oracle DB (TCP) - Oracle database connection

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23
Q

3306

A

MySQL (TCP) - MySQL database connection

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24
Q

3389

A

RDP (TCP) - Remote Desktop Protocol - remote desktop

25
5900
VNC (TCP) - Virtual Network Computing - remote desktop
26
8080
HTTP-Alt (TCP) - Alternative HTTP port
27
135
MSRPC (TCP) - Microsoft Remote Procedure Call
28
137
NetBIOS Name Service (UDP) - NetBIOS Name Resolution
29
138
NetBIOS Datagram Service (UDP) - NetBIOS Datagram transmission
30
139
NetBIOS Session Service (TCP) - NetBIOS Session communication
31
194
IRC (TCP) - Internet Relay Chat
32
500
IKE (UDP) - Internet Key Exchange - VPN setup
33
520
RIP (UDP) - Routing Information Protocol
34
623
IPMI (UDP) - Intelligent Platform Management Interface
35
873
rsync (TCP) - Remote file and directory synchronization
36
902
VMware Server (TCP/UDP) - VMware server management
37
1434
MS-SQL Monitor (UDP) - Microsoft SQL Server monitoring
38
2049
NFS (TCP/UDP) - Network File System
39
2375
Docker API (TCP) - Unsecured Docker daemon API
40
27017
MongoDB (TCP) - MongoDB database
41
27018
MongoDB Shard (TCP) - MongoDB shard server
42
4786
Cisco Smart Install (TCP) - Cisco Smart Install service
43
5060
SIP (TCP/UDP) - Session Initiation Protocol - VoIP signaling
44
5061
SIP-TLS (TCP) - Secure SIP over TLS
45
5222
XMPP (TCP) - Extensible Messaging and Presence Protocol
46
5432
PostgreSQL (TCP) - PostgreSQL database connection
47
5555
ADB (TCP) - Android Debug Bridge
48
5631
pcAnywhere Data (TCP) - pcAnywhere remote access data
49
5632
pcAnywhere Status (UDP) - pcAnywhere remote access status
50
5985
WinRM HTTP (TCP) - Windows Remote Management via HTTP
51
5986
WinRM HTTPS (TCP) - Windows Remote Management via HTTPS
52
6379
Redis (TCP) - Redis in-memory database
53
8000
Alternative HTTP (TCP) - Common alternative HTTP port
54
8443
Alternative HTTPS (TCP) - Common alternative HTTPS port
55
22
SSH (TCP) - Secure Shell for secure remote login / SFTP (TCP) - SSH File Transfer Protocol / SCP (TCP) - Secure Copy Protocol over SSH
56
53
DNS (TCP) - DNS zone transfers / DNS (UDP) - DNS queries
57
443
HTTPS (TCP) - HTTP Secure - secure web browsing / QUIC (UDP) - Quick UDP Internet Connections - faster HTTP/3
58
80
HTTP (TCP) - Hypertext Transfer Protocol - web pages / HTTP (UDP) - HTTP/3 - used over QUIC