Question regarding different responses that I am getting for a lookup.

[Lee]

On 8/6/18, Bhangui, Sandeep - BLS CTR <Bhangui.Sandeep at bls.gov> wrote:
> Hello
>
> Not sure why I am getting different responses when I perform a dig on
> sso.dol.gov.
>
> Dig is performed from a server which is capable of querying the root
> servers….what could be the issue.

Probably because the bls.gov server gets a different answer than a
server outside the bls.gov (or .gov?) domain.

> sso.gslb.dol.gov.       15      IN      A       10.49.1.80
you can't get there from here if >>here<< is on the internet

Regards,
Lee



>   Both dig commands below are run from the
> same server which acts as DNS server capable of performing DNS queries on
> the internet.
>
> The dig +trace +all output is the same when I query my local server as well
> as when I query the VZ NS.
>
> Any guidance/pointers would be appreciated.
>
> Running Bind 9.11.3 on RHEL 6.x is that is of any relevance.
>
> I have a feeling that the external DNS entry presented  for sso.dol.gov is
> messed up…
>
> Thanks
> Sandeep
>
>
>
> sh-4.1# dig sso.dol.gov
>
> ; <<>> DiG 9.11.3 <<>> sso.dol.gov
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12647
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 1
>
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 4096
> ; COOKIE: 191369419bc6df077b8f30ce5b688c9e77211f348bb29b35 (good)
> ;; QUESTION SECTION:
> ;sso.dol.gov.                   IN      A
>
> ;; ANSWER SECTION:
> sso.dol.gov.            77266   IN      CNAME   sso.gslb.dol.gov.
> sso.gslb.dol.gov.       15      IN      A       10.49.1.80
>
> ;; AUTHORITY SECTION:
> gslb.dol.gov.           77266   IN      NS      silprodgslb.dol.gov.
> gslb.dol.gov.           77266   IN      NS      stldrpgslb.dol.gov.
>
> ;; Query time: 27 msec
> ;; SERVER: 127.0.0.1#53(127.0.0.1)
> ;; WHEN: Mon Aug 06 13:59:58 EDT 2018
> ;; MSG SIZE  rcvd: 158
>
>
> sh-4.1# dig @198.6.1.1 sso.dol.gov
>
> ; <<>> DiG 9.11.3 <<>> @198.6.1.1 sso.dol.gov
> ; (1 server found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25189
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
>
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 4000
> ;; QUESTION SECTION:
> ;sso.dol.gov.                   IN      A
>
> ;; ANSWER SECTION:
> sso.dol.gov.            86378   IN      CNAME   sso.gslb.dol.gov.
> sso.gslb.dol.gov.       15      IN      A       152.180.20.21
>
> ;; Query time: 93 msec
> ;; SERVER: 198.6.1.1#53(198.6.1.1)
> ;; WHEN: Mon Aug 06 14:01:42 EDT 2018
> ;; MSG SIZE  rcvd: 79
>
>