UNIX Network Programming Reading Notes: overview

Cognitive Interface Programming Interface

Understanding the concept of raw socket

 

It is worth noting that,The customer and server are typical user processes, while the TCP and IP protocols are usually part of the system kernel protocol stack.

There is a gap between TCP and UDP, which is used to indicateApplications can directly use IPv4 and IPv6 without bypassing the transport layer, which is called the raw socket ).

In UNIX network programmingThe interface programming interface is the interface from the application layer to the transport layer.. The focus of UNIX network programming is: how to use a set of interfaces to write network applications that use TCP or UDP.