How dns works in linux

The DNS server (80.58.61.250) answers to pings. So I was wondering if the problem could be in that DNS server. Is there some way, like telneting or similar, to check if a given DNS IP works as it must (this is: answering with a IP address when requested for a domain name)? For example, when testing a SSH server, a possible trick is:

How to Setup Local DNS Using /etc/hosts File in Linux Jul 25, 2017 Linux for Network Engineers: How to Resolve a Host & Test Oct 31, 2018 What is DNS and how does it work – Linux Hint

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A Guide on How DNS Works - Whizlabs Blog

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Linux IP updater The ddclient is an open-source dynamic IP updater client written in Perl. If your Linux distribution does not have a recent version of ddclient, you can download the tar file here . How DNS Cache Works | NetBeez Network Monitoring Apr 11, 2018 The DNS configuration in Debian • Linux Hub