Chapter 7. Programming with Sockets

After you have interacted with various clients/servers in Python, you will be keen to create your own custom clients and servers for any protocol of your choice. Python provides a good coverage on the low-level networking interface. It all starts with BSD socket interface. As you can assume, Python has a socket module that gives you the necessary functionality to work with the socket Interface. If you have ever done socket programming in any other language like C/C++, you will love the Python socket module.

In this chapter, we will explore the socket module by creating a diverse range of Python scripts.

The following are the highlights of this chapter:

• Basics of sockets

• Working with TCP sockets

• Working with UDP sockets

• TCP port forwarding

• Non-blocking socket I/O

• Securing sockets with SSL/TLS

• Creating custom SSL client/server