Service for:
Port 20
File Transfer Protocol (FTP) - Active Mode Data
Protocol for:
File Transfer Protocol
TCP
Port Number for:
File Transfer Protocol (FTP) - Active Mode Data
20
Service for:
Port 21
File Transfer Protocol (FTP) - Control
Port Number for:
File Transfer Protocol (FTP) - Control
21
Service for:
Port 22
Secure Shell
(SSH)
Protocol for:
Secure Shell (SSH)
TCP
Port Number for:
Secure Shell
(SSH)
22
Service for:
Port 23
Telnet
Protocol for:
Telnet
TCP
Port Number for:
Telnet
23
Service for:
Port 25
Simple Mail Transfer Protocol
(SMTP)
Protocol for:
Simple Mail Transfer Protocol
(SMTP)
TCP
Port Number for:
Simple Mail Transfer Protocol
(SMTP)
25
Service for:
Port 53
Domain Name System
(DNS)
Protocol for:
Domain Name System
(DNS)
UDP
Port Number for:
Domain Name System
(DNS)
53
Service for:
Port 67
Dynamic Host Configuration Protocol
(DHCP)
Service for:
Port 68
Dynamic Host Configuration Protocol
(DHCP)
Protocol for:
Dynamic Host Configuration Protocol
(DHCP)
UDP
Port Number for:
Dynamic Host Configuration Protocol
(DHCP)
67 & 68
Service for:
Port 80
Hypertext Transfer Protocol
(HTTP)
Protocol for:
Hypertext Transfer Protocol
(HTTP)
TCP
Port Number for:
Hypertext Transfer Protocol
(HTTP)
80
