TCP/IP
Contents
What is a protocol
TCPIP Stack
Application layer
Transport layer
Network layer
Link layer
Ports
Why we need them
Well known port numbers
Socket
Protocols
http
Hyper Text Transfer Protocol, most often used at the beginning of URLs.
https
A verified, secure version of HTTP.
ftp
File Transfer Protocol
SSH
Secure SHell Protocol. Designed for operating securely over an unsecure network.
telnet
Allows a user to log into a remote computer over the interlinking network.
pop3
Post Office Protocol, version 3.
