Name Servers are a forgotten piece of the internet puzzle. Having failover name servers for reliability and uptime is a consideration often overlooked from the client, to the web services provider, and all the way up to the webhost. While name servers are (theoretically) geographically separated and located on separate networks, they are not impregnable […]
These tools are meant to help you deploy SPF records for your domain. They use an actual RFC 4408 compliant library (pyspf) for tests and will dynamically test for processing limit errors (no other testers I’m aware of do this). This site uses a caching DNS resolver, so for tests that use live DNS, results […]
If you are lazy (as we are) or you don’t want to waste all your time adding DNS entries manually, you can use dnscmd via command line on Windows. It’s a nice way to put a large entries from a file or something that needs further configuration.
This will be quick and sweet. Last night someone asked me to turn re-use an old server from having a catalog installed to just hosting primary DNS zones. So before I make this Active directory integrated DNS server to just a primary or do anything worthwhile I wanted to backup the zones. Well how?
I just finished the first DNS chapter in my Elements book, the first of my three-book series on Server 2008. I always love talking about DNS — it’s a fun topic — but this particular chapter was a joy to write because I mostly threw away the old chapter and wrote an all-new one. In the […]