Port Number and Protocol Flashcards
Learn about port numbers and their protocol
Port 20
TCP
Protocol: FTP
Description: File Transfer Protocol - Data
Port 21
TCP
Protocol: FTP
Description: File Transfer Protocol - Control
Port 23
TCP
Protocol: Telnet
Description: For remotely connecting or managing devices ( not secure )
Port 22
TCP
Protocol: SSH
DESCRIPTION: Secure version of Telnet
Port 25
TCP
PROTOCOL: SMTP
Description: simple mail transfer Protocol
( think of email)
Port 53
TCP/UDP
Protocol: DNS
Description: Domain Name Server, name to the IP Address
Port 67
UDP
Protocol: DHCP
DESCRIPTION: DHCP server, used when sending IP Addresses
Port 68
UDP
Protocol: DHCP
Description: DHCP Client , used when recieving IP Addresses
Port 80
TCP
Protocol: HTTP
Description: Hyper Text Transfer Protocol
Port 110
TCP
Protocol: POP3
Description: Post Office Protocol, used to receive MAIL
Port 123
UDP
PROTOCOL: NTP
Description: network time protocol
Port 137-139
UDP/TCP
Protocol: NETBT
Description: NetBIOS over TCP/IP
Port 143
TCP
Protocol: IMAP
Description: internet mail access protocol
Port 161
UDP
PROTOCOL: SNMP-Query
Description: simple network management protocol
Port 162
UDP
PROTOCOL: SNMP-Trap
Description: Simple network management protocol