CoreDNS

What do you like best?

I like it because it can be used in a multitude of environments thanks to its flexibility. CoreDNS is licensed under the Apache License Version 2, and is completely open source.

The development takes place in Github. Most devs hang out in Slack on the #coredns channel.

What do you dislike?

I still have no complaints with this software, writing new add-ons is quite easy, but it requires knowing Go and having an idea of ​​how DNS works. CoreDNS extracts all the other bits, so you can concentrate on writing the plug-in functionality you need.

Recommendations to others considering the product:

I recommend it as they have excellent support that strives to keep things as simple as possible and we have reasonable default values. Here is the Corefile for calluses. one of the best services I've tried so far which has been of great help in the departments of my organization.

What problems are you solving with the product? What benefits have you realized?

When we write a web address in our browser, it requires a DNS search to associate the name with the real IP address. But the first thing our system does is to check if the answer that the browser is requesting is found in the local cache. If it is, it will automatically send the associated IP to establish the remote connection. Only in the case that this information is not stored, the equipment will connect with a DNS server that it finds in its path to request the ISP service. At this moment, this information stops forming the cache of the system for future accesses.

More information at: https://www.profesionalreview.com/mejores-servidores-dns-publicos-gratuitos/