Socket

A socket Full Duplex File Descriptor that acts an endpoint for network communication. Identified by IP Address + Port

• 2 processes want to communicate over a network → 2 sockets are made

Socket Creation Process

1. Client initiates request for connection. It is assigned a random port greater than 1024
2. Server waits for client requests from specific port
3. Request is received
4. Server accepts connection from client

UNIX Socket Communication

UNIX Functions

• socket()
• bind()
• listen()
• connect()
• accept()
• send()
• recv()
• close()

Concepts

• UNIX Socket Families
• UNIX Socket Connection Type