Score:0

Seemingly contradictory host lookup results. (NXDOMAIN) and IP addresses

de flag

If I execute:

$ host rocky-k3.sst.example.com

I get this output:

rocky-k3.sst.example.com has address 10.0.3.53
rocky-k3.sst.example.com has address 10.0.3.51
rocky-k3.sst.example.com has address 10.0.3.52
Host rocky-k3.sst.example.com not found: 3(NXDOMAIN)

Why am I getting that NXDOMAIN line of output?

dave_thompson_085 avatar
jp flag
`host` by default looks up and displays A=IPv4 AAAA=IPv6 and MX records (in that order); whatever nameserver you are using is apparently defectively returning NXDOMAIN for one of the latter when it should return an empty answer section. `nslookup` similarly by default does A and AAAA (but not MX), and also displays the nameserver used; you might see if that is more helpful. PS: the word you wanted is 'seemingly'; 'seemly' means 'in good taste, proper, appropriate, polite'
Patrick Mevzek avatar
cn flag
`host` , and `nslookup` are NOT good DNS troubleshooting tools. Only `dig` or similar is (doing one query, getting one answer). If you don't disclose real names noone can help you in any meaningful way, so you can just try yourself online with a DNS troubleshooting tool like DNSViz.
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.