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Date: Wed, 15 Mar 2017 17:10:08 +0000
From: <>
To: <>
Subject: RE: Queries with less than `ndots` dots never lead to
 resolution using the global namespace if the `search` domains don't work

HI Rich,

I've attached the results from running the following two commands:

  1. ` strace ./gai3a 2> strace_of_google-com.txt`
  2. ` strace ./gai3a 2> strace_of_google-com-default-svc.txt`

Is this what you were looking for or can I provide something more useful?

Thanks again, Dominic.

-----Original Message-----
From: Rich Felker [] On Behalf Of Rich Felker
Sent: 15 March 2017 16:11
Subject: Re: [musl] Queries with less than `ndots` dots never lead to resolution using the global namespace if the `search` domains don't work

On Wed, Mar 15, 2017 at 12:58:02PM +0000, wrote:
> HI Rich,
> Thanks for the prompt response here. Apologies for any confusion I may 
> have created, but I think the server is responding with an overall 
> `NXDOMAIN` response. This is what I get from running `dig
> ```
> ; <<>> DiG 9.10.3-P4-Ubuntu <<>>
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 20863 ;; flags: 
> qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
> ; IN A
> cluster.local.          60      IN      SOA     ns.dns.cluster.local. hostmaster
> .cluster.local. 1489579200 28800 7200 604800 60
> ;; Query time: 0 msec
> ;; SERVER:
> ;; WHEN: Wed Mar 15 12:49:14 UTC 2017
> ;; MSG SIZE  rcvd: 147
> ```
> Although there's less information with nslookup, the response from 
> running `nslookup` seems even 
> more definitive:
> ```
> Server:
> Address:
> ** server can't find NXDOMAIN 
> ```
> Maybe I was just reading too much into the output from dig regarding 
> exactly what was being returned from the server. Any further thoughts?

Can you send an strace log of an affected lookup with musl's resolver (rather than dig/nslookup which use bind's resolver) for me to look at? Attached is source for a trivial sample utility to perform a lookup.

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View attachment "strace_of_google-com.txt" of type "text/plain" (5095 bytes)

View attachment "strace_of_google-com-default-svc.txt" of type "text/plain" (5081 bytes)

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