If you're trying to access a Windows 2008 Server via Remote Desktop from Windows XP, you'll need to enable the enhanced security in the client in order to connect.
Security
OSSEC: Open Source host-based intrusion detection
OSSEC is an open source intrusion detection system that employs log analysis, integrity checking, and rook-kit detection to respond with time-based alerting or active response. And it runs on almost
OpenSSL
The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.
WhichSSL
Information on SSL and certificats, including a comparison of several SSL Authority Certificate Providers.
Bruce Schneier
Bruce Schneier is an internationally renowned security technologist and author. Described by The Economist as a "security guru," Schneier is best known as a refreshingly candid and lucid security critic and commentator. When people want to know how security really works, they turn to Schneier.
SCN Research
SCN Research is an Oregon company specializing in computer and internet security, Unix/Linux administration, server setup, network configuration and monitoring, and many other services.
Anatomy of a Network Intrusion
Empty Red Bull cans litter the floor, reflecting the warm glow of the monitors. Alongside the sketch boards lie drained liters of Mountain Dew, partially eaten burritos and dozens of 486 machines configured as Linux Beowulf clusters.
Gibson Research Corporation
GRC.COM is home to SpinRite, the industry standard for hard disk data recovery and maintenance, ShieldsUp, a free internet checkup and information service, LeakTest, which tests to make sure personal
NTBugTraq
NTBugtraq is a mailing list for the discussion of security exploits and security bugs in Windows NT, Windows 2000, and Windows XP plus related applications.
SANS Institute
SANS is the most trusted and by far the largest source for information security training and certification in the world. It also develops, maintains, and makes available at no cost, the largest collection of research documents about various aspects of information security, and it operates the Internet's early warning system - Internet Storm Center.