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1 --with-tuning=large - about using this build-time option Featured

In BIND 9.10 (and earlier in the stable preview edition) we added a built-time option --with-tuning=large. This option allows operators to tune BIND for better performance in high-memory machines, by setting various constants and defaults to values more appropriate…

2 What does 'rndc nta' do and when should I use it?

Question: I've heard that there's a new rndc command in BIND 9.11.0 - 'rndc nta'. What does it do? Answer: 'rndc nta' is used to temporarily disable DNSSEC validation for a domain, allowing unsigned and/or non-validating signed data to be returned by an otherwise-validating…

3 DNS Cookies in BIND 9.10 and 9.11

DNS COOKIE is an Extended DNS (EDNS) option which, when both the client and server support it, allows the client to detect and ignore off-path spoofed responses, and the server to determine that a client's address is not spoofed. It is supported as an experimental…

4 Recursive Client Rate limiting in BIND 9.9 Subscription Version and BIND 9.9 and 9.10 Experimental versions

This article applies to BIND 9.9.6 and 9.9.7 subscription version and to the BIND 9.9 and 9.10 experimental versions only With the release of BIND 9.9.8 and 9.10.3, we are updating the Recursive Client Rate limiting functionality and encourage those using…

5 NXDOMAIN Redirection Using DLZ in BIND 9.9 Subscription Version

NXDOMAIN redirection is a BIND feature providing the ability for a recursive server to replace an NXDOMAIN response to a query with a configured answer of its own. This substitute response is returned to the original client in place of the NXDOMAIN response…

6 Using DSCP With BIND 9.9 Subscription Version

As one of the premium features available to subscribers, BIND 9 Subscription Version gives operators the ability to influence service differentiation by setting a specified value in the IPv4 or IPv6 headers of outgoing traffic sent by the BIND server. What…

7 Using the GeoIP Features in BIND 9.9 Subscription Version

BIND's GeoIP features allow you to create ACL elements that evaluate based on the location information for the client's IP address. This uses the API provided by MaxMind® to query their GeoIP database and should work with any database in the proper format.…