Ports and Protocols Flashcards
What is TCP
Transmission Control Protocol
- connection based, slow but reliable
What is UDP
user Datagram protocol
- quicker but may drop packets
What is a Protocol?
A Protocol is a set of rules that communication adheres to.
What is a Port?
A Port is a logical access channel for communication of a certain type.
What are the Standardized Port Ranges?
- 0- 1023 = Well known ports (most of the focus)
- 1024-49151 = Register port ranges (a few in this range)
- 49152 - 65535 = Dynamic port ranges
Name and Port Number:
SMTP
Simple Mail Transfer Protocol
25
Name and Port Number:
POPv3
Post Office Protocol v3
110
Name and Port Number:
IMAP
Internet Message Application Protocol
143
Name and Port Number:
HTTP
Hyper Text Transfer Protocol
80
Name and Port Number:
HTTPS
Hyper Text Transfer Protocol
443
Name and Port Number:
FTP
File Transfer Protocol
20 for requests
21 for commands
Name and Port Number:
TFTP
Trivial File Transfer Protocol
69
Name and Port Number:
Telnet
Telnet
23
Name and Port Number:
SSH
SecureShell
22
Name and Port Number:
RDP
Remote Desktop Protocol
3389
Name and Port Number:
DNS
Domain Name System
53
Name and Port Number:
NETBIOS
Network BIOS
Ports 137, 138, 139
Name and Port Number:
DHCP
Dynamic Host Configuration Protocol
67 and 68
Name and Port Number:
SNMP
Simple Network Management Protocol
161 and 162
Name and Port Number:
LDAP
Lightweight Directory Access Protocol
389
Name and Port Number:
SMB
Server Message Block
445
