Name Resolution Performance of a Recursive Windows DNS Server 2012 R2

In a previous article we talked about the name resolution performance of a Windows DNS server when deployed as an authoritative DNS server. This article details the name resolution performance of the windows DNS Server 2012 R2, when deployed as a recursive resolver. Test Setup and Methodology The test setup constitutes of a DNS client… Read more

Name Resolution Performance of Authoritative Windows DNS Server 2012 R2

This article updates the previous benchmark for name resolution performance on windows server 2012 R2 published here. It details the name resolution performance of the windows DNS Server 2012 R2, when deployed in a strictly authoritative mode on which recursion has been disabled and root hints have been removed. The new benchmarks have been recorded with Dnsperf tool, which… Read more

Traffic Management with DNS Policies in Primary-Secondary Deployment

In the last few blogs we have seen how Windows DNS server policies can be used to achieve traffic management, application load balancing, deploying split-brain DNS, creating DNS filters etc. These blogs talked about configuring policies on the primary DNS server. But in the internet infrastructure the DNS servers are widely deployed in primary-secondary model,… Read more

DNS Server Startup Time Improvements in Windows Server 2012 R2

Issue Summary With the advent of cloud computing, there are more apps, more domains and more web services than ever. Every business needs its footprint on the world wide web. This led to a burst in the number of file backed zones being hosted on a single DNS server. In such a scenario, our tests… Read more

Intelligent DNS Responses Based on the Time of Day

DNS policies is a new feature in the DNS server role of Windows Server 2016 Technical Preview – not to be confused with group policies of the AD fame. You can create DNS policies on the DNS server to control how a DNS Server handles queries based on different parameters. In the previous blogs, we… Read more

Application Load Balancing using DNS Server Policies

DNS policies is a new feature in the DNS server role of Windows Server 2016 Technical Preview. You can create DNS policies on the DNS server to control how a DNS Server handles queries based on different parameters. In the previous blogs, we discussed how to achieve traffic management, deploying split-brain DNS and creating DNS query filters using policies. The policies… Read more

Applying Filters on DNS Queries using Windows DNS Server Policies

DNS policies is a new feature in the DNS server role of Windows Server 2016 Technical Preview – not to be confused with group policies of the AD fame. You can create DNS policies on the DNS server to control how a DNS Server handles queries based on different parameters. In the previous blogs, we… Read more

Handling Endless Delegation Chains in Windows DNS Server

DNS servers that are acting as caching resolvers send queries to the authoritative DNS servers. One of the possible responses that an authoritative server can send is a ‘referral response’. The most common scenario for an authoritative server sending back a referral response is when the server is acting as a parent domain containing the… Read more