The DNS is a remarkably simple system. You send it queries and you get back answers. Within the system you see exactly the same simplicity: The DNS resolver that receives your query may not know the answer, so it, in turn, will send queries deeper into the system and collects the answers. The query and response process is the same, applied recursively. Simple.
I thought it’d be amusing to provide the public domain data via the DNS, so I did just that. Each airport has a couple of TXT and a LOC record associated with it. The domain name is the 3-letter IATA code.
In late June, Cloudflare's resolver team noticed a spike in DNS requests for the 65479 Resource Record thanks to data exposed through our new Radar service. We began investigating and found these to be a part of Apple’s iOS14 beta release where they were testing out a new SVCB/HTTPS record type.
(or: the good, the bad and the ugly) Due a bug in zone generation, all updates for the EU.ORG zone were stuck from 2020-08-29 02:19 UTC to 2020-09-04 14:40 UTC. Then an incorrect fix was made, resulting in the publication of incorrect DNSSEC signatures for the zone from 2020-09-04 14:40 UTC to 2020-09-04 19:37:00
Recently, version 3.0 of Knot DNS – an open-source implementation of an authoritative DNS server – has been released. Despite the version number, the software isn’t changing much. There are slightly more new features than in common feature releases such as 2.9. However, the features added in 3.0 don’t change any behaviour, unless the user turns them on. The migration from 2.9 to 3.0 is therefore seamless.
After a successful beta testing and development period (many thanks to the beta testers!), we are pleased to announce the release of 5.0 for general availability!
There are many fundamental changes between Pi-hole 4.x and 5.0 – as such, this is strictly a one way operation. Once you move from 4.x to 5.0, there is no way to go back; you will need to restore from a backup. Read all the notes before you make the jump, and make a backup!
VinylDNS is a vendor agnostic front-end for enabling self-service DNS and streamlining DNS operations. It is designed to integrate with your existing DNS infrastructure, and provides extensibility to fit your installation. VinylDNS manages millions of DNS records supporting thousands of engineers in production at Comcast. The platform provides fine-grained access controls, auditing of changes, a self-service user interface, secure RESTful API, and integration with infrastructure automation tools like Ansible and Terraform.
The nsnotifyd daemon monitors a set of DNS zones and runs a command when any of them change. It listens for DNS NOTIFY messages so it can respond to changes promptly. It also uses each zone's SOA refresh and retry parameters to poll for updates if nsnotifyd does not receive NOTIFY messages more frequently.
Quad9 is a free security solution that uses DNS to protect your system against the most common cyber threats. It improves
your system's performance, plus, it preserves and protects your privacy. It's like an immunization for your computer.