Building Linux Virtual Private Networks offers concise, step-by-step instructions for building VPNs based on both standard protocols (IPSec, SSL, SSH, PPTP) and popular Linux VPN solutions (VTun, cIPe, tinc). Through numerous examples and proven practices, you will gain important insights into choosing a VPN solution, installing and configuring it, setting up routing, configuring firewalls, measuring performance, and much more.