Perimeter Security Checklist

• Identify all physical and logical connections to the outside world.
• Take the lead in implementing new Internet-based technologies securely from the start.
• Protect all routes through which files can enter your network with anti-malware software.
• Always patch all OSs, perimeter-related devices, applications, and servers as soon as patches are available.
• Insulate remotely accessible applications with application-level gateways such as ISA Server and plug-ins from ISA Server partners.
• Consider advanced perimeter security solutions for IM, XML, and Web filtering.
• If you need an IDS or IPS, plan for the necessary support and maintenance.

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