Networking Resources

General:

• Networking Overview document — Despite the fact that this is in the archive, this is still really useful.

• TLS for App Developers DevForums post

• Choosing a Network Debugging Tool documentation

• Low-Level Networking on watchOS DevForums post

Foundation networking:

• DevForums tags: Foundation, CFNetwork

• URL Loading System documentation — NSURLSession, or URLSession in Swift, is the recommended API for HTTP[S] on Apple platforms.

Network framework:

• DevForums tag: Network

• Network framework documentation — Network framework is the recommended API for TCP, UDP, and QUIC on Apple platforms.

Network Extension (including Wi-Fi on iOS):

• See Network Extension Resources

Wi-Fi on macOS:

• DevForums tag: Core WLAN

• Core WLAN framework documentation

Secure networking:

• DevForums tags: Security

• Apple Platform Security support document

• Preventing Insecure Network Connections documentation — This is all about App Transport Security.

• Available trusted root certificates for Apple operating systems support article

• Requirements for trusted certificates in iOS 13 and macOS 10.15 support article

• About upcoming limits on trusted certificates support article

• Technote 2232 HTTPS Server Trust Evaluation

• Technote 2326 Creating Certificates for TLS Testing

• QA1948 HTTPS and Test Servers

Miscellaneous:

• More network-related DevForums tags: 5G, QUIC, Bonjour

• On FTP DevForums post

• Using the Multicast Networking Additional Capability DevForums post

• Investigating Network Latency Problems DevForums post

• Local Network Privacy FAQ DevForums post

Share and Enjoy
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"