Linux BIND 9 TSIG Security Configuration

Posted by nixcraft on Jan 28, 2009 11:06 PM EDT
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Transaction signatures (TSIG) is a mechanism used to secure DNS messages and to provide secure server-to-server communication. This includes zone transfer, notify, and recursive query messages. TSIG uses shared secrets and a one-way hash function to authenticate DNS messages, particularly responses and updates.

This tutorial discusses the security mechanisms implemented in BIND to secure DNS messages and name servers using TSIG configurations.

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