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Detailing the Additional Advantages of ISA Server
In addition to being a fully functional firewall solution, ISA Server contains a host of other
security and productivity features. ISA Server is often deployed for other nonfirewall tasks
such as Virtual Private Network (VPN) access, web caching, and intrusion detection.
Taking it one step further, a slew of dedicated ISA hardware devices have become available
from various manufacturers. An understanding of what these types of capabilities are and
how they can best be utilized is key.
Allowing for More Intelligent Remote Access with Virtual Private
Networks (VPNs)
In addition to having robust firewall capabilities, ISA Server is also a fully capable Virtual
Private Network (VPN) solution. Built into the functionality of the product, VPN capabilities
allow trusted users that exist outside a network to authenticate with ISA Server and
gain elevated access to internal network resources. In addition to authenticating against
Active Directory domains, ISA Server 2006 can utilize RADIUS (Remote Authentication
Dial-In User Service) to authenticate users. This capability opens up a range of new architectural
capabilities with ISA because the ISA server no longer is required to be a domain
member to provide authentication between users.
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