VPN and IPSEC Server With IDS

Virtual Private Networking, or VPN, is a technology that lets people access their office's computer network over the Internet while at home or traveling. Accessing a network in this way is referred to as remote access. (For comparison, another common form of remote access is dialing in to the office network over a telephone line.) But VPN is useful for more than just remote access. It can also be used to link two separate offices over a distance. This is sometimes called a "persistent VPN tunnel", or "site-to-site VPN".