NIST SSL VPN Guide (July 2008)
- Secure Sockets Layer (SSL) virtual private networks (VPN) provide secure remote access to an organization’s resources. A VPN is a virtual network, built on top of existing physical networks, that can provide a secure communications mechanism for data and other information transmitted between two endpoints. Because a VPN can be used over existing networks such as the Internet, it can facilitate the secure transfer of sensitive data across public networks. An SSL VPN consists of one or more VPN devices to which users connect using their Web browsers. The traffic between the Web browser and the SSL VPN device is encrypted with the SSL protocol or its successor, the Transport Layer Security (TLS) protocol. This type of VPN may be referred to as either an SSL VPN or a TLS VPN.
NIST Practice guide to securing wireless networks (February 2012)
- The security of each WLAN is heavily dependent on how well each WLAN component—including client devices, APs, and wireless switches—is secured throughout the WLAN lifecycle, from initial WLAN design and deployment through ongoing maintenance and monitoring. Unfortunately, WLANs are typically less secure than their wired counterparts for several reasons, including the ease of access to the WLAN and the weak security configurations often used for WLANs (to favor convenience over security). The purpose of this publication is to help organizations improve their WLAN security by providing recommendations for WLAN security configuration and monitoring.