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So, Quad 9 stopped responding again. I'm not sure what's going on. I really want to keep using Quad 9, but the reliability has been pretty spotty lately. 9.9.9.9 was responding to ping, but not responding to queries -- both regular queries and DNS over TLS. Location: San Jose, CA.

@quad9dns

#quad9 #dns #outage

[steve@mooBookProM2Pro ~ % ping -¢ 5 9.9.9.9 ; dig 09.9.9.9 ultramookie.com PING 9.9.9.9 (9.9.9.9): 56 data bytes 64 bytes from 9.9.9.9: icmp_seq=0 ttl=55 time=17.245 ms 64 bytes from 9.9.9.9: icmp_seq=1 ttl=55 time=15.901 ms 64 bytes from 9.9.9.9: icmp_seq=2 ttl=55 time=14.144 ms 64 bytes from 9.9.9.9: icmp_seq=3 ttl=55 time=16.908 ms 64 bytes from 9.9.9.9: icmp_seq=4 ttl=55 time=16.081 ms ——— 9.9.9.9 ping statistics -—— 5 packets transmitted, 5 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 14.144/16.056/17.245/1.079 ms ; <<>> DiG 9.10.6 <<>> 09.9.9.9 ultramookie.com ; (1 server found) ;1 global options: +cmd ;1 connection timed out; no servers could be reached steve@mooBookProM2Pro ~ % [
#dns #quad9 #outage
This entry was edited (1 week ago)
in reply to steve mookie kong

Carlo Zottmann
Carlo Zottmann
• •

Love the not-for-profit setup there, thats good stuff. But of course, it must be reliable to work for you…

FWIW, I can recommend NextDNS. Not free but worth it. I believe I've mentioned it a few times already 😅

steve mookie kong reshared this.

in reply to Carlo Zottmann

steve mookie kong
steve mookie kong
• •

@czottmann

I have my account setup at Next DNS. Will be switch in today. Thanks for the recommendation!🤜🤛

@Carlo Zottmann
in reply to steve mookie kong

Patrick Mevzek
Patrick Mevzek
• •
Never use `ping` to troubleshoot DNS problems. Install a modern `dig` version (9.10.6 is centuries old). Try various switches (+tcp for example), but more importantly, first diagnose if you have a level 3 or 4 connectivity problem, before application level problems. Use `traceroute` absolutely with options `-t tcp` or `-t udp` to force proper protocol (default traceroute using ICMP is useless) and port 53. See where traffic breaks. Double check your firewall rules too. Inspect traffic.
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