Domain Name System Security for Domain Resolvers

Category
Guidance Document
Organisation
Australian Signals Directorate's Australian Cyber Security Centre (ASD's ACSC)
Type
Standard
Access
Open
Status
Active
Created
January 2021
Updated
October 2021
This publication provides information on Domain Name System (DNS) security for recursive resolution servers, as well as mitigation strategies to reduce the risk of DNS resolver subversion or compromise. Organisations should implement the mitigation strategies in this publication to improve the security of their DNS infrastructure.

Main sections:

- Introduction and background

- DNS resolution server attacks and mitigations
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