A VPN basically creates a secure channel, or tunnel, between two endpoints—in this case, between my laptop and the secure network at the office—to safely connect two trusted parties through an unsecured public network (the Internet). VPNs can also be used to link PCs to VPN routers or create protected peer-to-peer connections among two or more PCs.
Packets traveling over the VPN tunnel are encapsulated and encrypted, divulging no useful information about their contents to eavesdropping packet sniffers. Luckily, you don´t need a business IT budget or infrastructure to set up and use your own VPN. There are a number of free and low-cost options out there, varying in complexity and performance. In addition to safe surfing, you´ll also get secure, remote access to other local resources like network drives, printers, and shared files from other networked PCs.Read Full Story