Three major types of #DNS failures are timeouts, latency, and DNS NXDOMAIN errors. Observability tools often can overlook these areas - so do they matter? Well, it depends how many services you would like to break.
Assuming your answer is ‘none’ – head over to our blog to learn how to master effective DNS observability and keep your system running failure-free:
#NXDOMAIN #opensource #devops #tech #IT #observability #SRE #coroot #mongodb
This one is a pretty long read, and it goes into details of observed #NXDOMAIN patterns with a bias towards the #DNS landscape in #China. I did not expect to see so much leakage of non-public TLDs, but I guess that - despite the bias towards Chinese networks- it probably looks similar in other parts of the world.
After reading this pretty long article, I was still somewhat feeling that it should have gone deeper into query flood phenomena which might cause spikes in NXDOMAIN responses.
No matter what, a well-spent 10 minutes on educating yourself on things that are often not illuminated on one of the #Internet core protocols.
Have a nice weekend, everyone!
The Domain Name System (DNS) is an essential protocol in the architecture of today's Internet. It routinely translates domain names into IP addresses and also often handles a multitude of invalid queries. These include requests for non-existent domain names, termed NXDOMAIN. A high volume of such invalid queries can adversely
Apparently all .tv domains registered through Sarek Oy (sarek.fi; or #Njalla, which uses them) are currently disabled by the .tv registry (turnon.tv / godaddy). No details are known and domain owners were not notified. This affects a few piracy sites, but also any other unrelated .tv domains, unfortunately including my jomo.tv domain. Piracy related .tv domains using a different registrar are not affected.
#tv #turnontv #godaddy #sarek #sarekfi #sarekoy #dns #serverhold #whois #piracy #nxdomain
HTTP Status Cats API : http.cat (Thanks, Rogério Vicente!) Tweet me at @girlie_mac if you have ideas or pics recommendations! (Updated: I am receiving overwhelming amount of comments/suggestions! Thank you so much and sorry for not replying to all of you!) HTTP Status Codes desc: en.wikipedia.org/wiki/List_of_HTTP_status_codes
Coroot
Max Resing
jomo
Jerry Mouse
Kevin Karhan 
Dick Smiths Fair Go Supporters
Dentaku (Thomas Renger)
Axel 🚴😷🐧🐪⌨ | #WeAreNatenom
Stéphane Bortzmeyer