Port numbers Flashcards
20, 21
File Transfer Protocol
22
Secure Shel
23
Telnet
25
Simple Mail Transfer Protocol
50, 51
IPSec
53
Domain Name System
67, 68
Dynamic Host Configuration Protocol
69
Trivial File Transfer Protocol
80
HyperText Transfer Protocol
110
Post Office Protocol
119
Network News Transport Protocol
123
Network Time Protocol
135-139
NetBIOS
135-139
Internet Message Access Protocol
161, 162
Simple Network Management Protocol
389
Lightweight Directory Access Protoco
443
HTTP with Secure Sockets Layer
3389
Remote Desktop Protocol
From 0 to 1023
well known ports assigned to common protocols and services
From 1024 to 49151
registered ports assigned by ICANN to a specific service
From 49152 to 65 535
dynamic (private, high) ports range
from 49,152 to 65,535.
Can be used by any service on an ad hoc basis. Ports are assigned when a session is established, and released when the session ends.
