Secure-IT Knowledge Base
Getting Started
This will help you along your journey towards IT Success
Common Ports and Services
The following list is the well-known ports that correspond to common internet services:
20 TCP.........................
21 TCP.........................
22 TCP and UDP..........
23 TCP.........................
25 TCP and UDP..........
53 TCP and UDP..........
67 TCP and UDP..........
68 TCP and UDP..........
69 TCP and UDP..........
80 TCP.........................
110 TCP.......................
119 TCP.......................
123 UDP.......................
137 TCP and UDP........
138 TCP and UDP........
139 TCP and UDP........
143 TCP.......................
161 UDP.......................
162 UDP.......................
389 TCP and UDP........
443 TCP and UDP........
445 TCP.......................
514 UDP.......................
587 TCP.......................
636 TCP.......................
993 TCP and UDP........
995 TCP and UDP........
1433 TCP.....................
1521 TCP.....................
1720 TCP.....................
2427 UDP.....................
2428 UDP.....................
3306 TCP and UDP......
3389 TCP and UDP......
5004 TCP and UDP......
5005 TCP and UDP......
5060 TCP and UDP......
5061 TCP.....................
File Transfer Protocol (FTP)
File Transfer Protocol (FTP)
Secure Shell Protocol (SSH) File Transfer Protocol and Secure File Transfer Protocol (SFTP)
Telnet
Simple Mail Transfer Protocol (SMTP)
Domain Name Server (DNS)
Dynamic Host Configuration Protocol (DHCP)
Dynamic Host Configuration Protocol (DHCP)
Trivial File Transfer Protocol (TFTP)
Hypertext Transfer Protocol (HTTP)
Post Office Protocol (POP3)
Network News Transport Protocol (NNTP)
Network Time Protocol (NTP)
NetBIOS Name Service
NetBIOS Datagram Service
NetBIOS Session Service
Internet Message Access Protocol (IMAP4)
Simple Network Management Protocol (SNMP)
Simple Network Management Protocol (SNMP)
Lightweight Directory Access Protocol (LDAP)
HTTP over Secure Sockets Layer (HTTPS)
Microsoft Server Message Block (SMB) File Sharing
Syslog
SMTP TLS
Lightweight Directory Access Protocol over TLS/SSL (LDAPS)
IMAP over SSL
POP3 over SSL
Structured Query Language (SQL) Server
SQLNet
H.323 Call Signaling
Cisco Media Gateway Control Protocol (MGCP)
Cisco Media Gateway Control Protocol (MGCP)
MySQL
Remote Desktop Protocol (RDP)
Real-time Transport Protocol (RTP) Data
Real-time Transport Protocol (RTP) Control
Session Initiation Protocol (SIP)
Session Initiation Protocol (SIP) over TLS