An open-source VPN alternative

Setting up a VPN is about as common a task as there is in today's IT world.  Problem is that proprietary VPNs such as Cisco's VPN solutions, although highly effective, can also be pretty expensive.  When you're working in a budget-conscious environment or simply don't want to be tied to a particular vendor, you can consider implementing a VPN solution with OpenVPN.  Author Vincent Danen has this how-to guide with all the steps.