Networking Fundamentals with APR - Basics of APR network interfaces. - Setting up network sockets. 2. TCP/UDP Protocols - Implementing TCP clients and servers. - Working with UDP for fast, connectionless communication. 3. Asynchronous I/O - Non-blocking I/O operations. - Using APR pollsets for event-driven programming. 4. Secure Communication - Implementing SSL/TLS with APR. - Managing certificates and encryption. 5. Network Performance Tuning - Profiling network applications. - Strategies for optimizing network throughput and latency. 6. Handling Multiple Connections - Using threads and processes for concurrency. - Best practices for managing multiple client connections. 7. Error Handling in Network Programs - Detecting and managing network errors. - Ensuring robust error recovery. 8. Practical Project - Developing a multi-client chat server. - Real-world application and testing.