A Practical Guide to Networking and Security in iOS 8 PDF Download for free:
Book Description:
This book describes how to use your iPhone, iPod touch, or iPad with iOS 8 on Wi-Fi and cellular/mobile networks securely, making connections with ease while protecting your data. It also covers Bluetooth networking, tracking an iOS device, using AirDrop and AirPlay, and solving connection problems.
You can also get this PDF by using our Android Mobile App directly: 
