NEVER Put an External DNS Server Address on an ISA Firewall NIC

By Deb Shinder / July 9, 2006

ISA FIREWALL FACT:

Never put an external DNS server address on any of the ISA firewalls NICs.

Never put an external DNS server address on the internal NIC

Never put an external DNS server address on the external NIC

Never put an external DNS server address on the DMZ NIC

Never put an external DNS server address on any ISA firewall NIC.

EOL.

HTH,

Tom

Thomas W Shinder, M.D.

Site: www.isaserver.org

Blog: http://blogs.isaserver.org/shinder/

Book: http://tinyurl.com/3xqb7

MVP — ISA Firewalls

About The Author

Deb Shinder

Debra Littlejohn Shinder is a technology and security analyst and author specializing in identity, security and cybercrime, utilizing her past experience as a police officer and police academy/criminal justice instructor. She has written numerous books and articles for web and print publications and has been awarded the Microsoft MVP designation for fourteen years in a row.

About The Author

Deb Shinder

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