Knowledge Base ISC Main Website Ask a Question/Contact ISC
Quick Jump Menu
1 Early refresh of cache records (cache prefetch) in BIND 9.10

A DNS resolver (recursive server) looks up information for its clients. When it finds an answer, it keeps a copy cached locally in addition to returning the answer to the requesting client. This ensures that if another request for the same information arrives,…

2 New Features in BIND 9.10

Response-rate limiting (DNS RRL) is now available by default ISC introduced the Response Rate Limiter into earlier versions of BIND as a configurable option. It was not automatically available. RRL has proven to be so valuable and effective that it is now…

3 Performance: Multi-threaded I/O

Starting in BIND 9.9.0, ISC has made some important changes regarding performance of BIND on multi-core machines. Among these is internal scaling of network traffic. This article describes this change. This feature is not available on the Windows version…

4 Inline Signing in ISC BIND 9.9.0 -- Examples

When DNSSEC was first introduced, the only way to sign DNS data was using the 'dnssec-signzone' utility; this would take an unsigned zone file and generate a new zone file containing signatures. This file would be loaded by named and served the same as any…