Problem with DNS on mandriva 2007

Carlos Alberto Bernat Orozco cabo81 at gmail.com
Mon Jan 29 16:09:34 UTC 2007


Hi group
Thanks for your answers.

This is the dig result with -x option:

# dig -x @200.21.66.194 www.codisert.com.co

; <<>> DiG 9.3.0 <<>> -x @200.21.66.194 www.codisert.com.co
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12421
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;194.66.21.\@200.in-addr.arpa.  IN      PTR

;; AUTHORITY SECTION:
in-addr.arpa.           7764    IN      SOA     a.root-servers.net.
dns-ops.arin.net. 2007012904 1800 900 691200 10800

;; Query time: 1 msec
;; SERVER: 200.30.115.164#53(200.30.115.164)
;; WHEN: Mon Jan 29 10:55:28 2007
;; MSG SIZE  rcvd: 112

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48270
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.codisert.com.co.           IN      A

;; ANSWER SECTION:
www.codisert.com.co.    604800  IN      CNAME   ethereal.codisert.com.co.
ethereal.codisert.com.co. 604800 IN     A       200.21.66.194

;; AUTHORITY SECTION:
codisert.com.co.        604800  IN      NS      ethereal.codisert.com.co.

;; Query time: 0 msec
;; SERVER: 200.30.115.164#53(200.30.115.164)
;; WHEN: Mon Jan 29 10:55:28 2007
;; MSG SIZE  rcvd: 90


################################

# dig -x @200.21.66.194 codisert.com.co

; <<>> DiG 9.3.0 <<>> -x @200.21.66.194 codisert.com.co
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 40894
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;194.66.21.\@200.in-addr.arpa.  IN      PTR

;; AUTHORITY SECTION:
in-addr.arpa.           7163    IN      SOA     a.root-servers.net.
dns-ops.arin.net. 2007012904 1800 900 691200 10800

;; Query time: 0 msec
;; SERVER: 200.30.115.164#53(200.30.115.164)
;; WHEN: Mon Jan 29 11:05:28 2007
;; MSG SIZE  rcvd: 112

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12396
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;codisert.com.co.               IN      A

;; AUTHORITY SECTION:
codisert.com.co.        172800  IN      SOA     codisert.com.co.
root.codisert.com.co. 20060804 10800 7200 1296000 172800

;; Query time: 0 msec
;; SERVER: 200.30.115.164#53(200.30.115.164)
;; WHEN: Mon Jan 29 11:05:28 2007
;; MSG SIZE  rcvd: 74

#######################################

dig -x @200.21.66.194 200.21.66.194

; <<>> DiG 9.3.0 <<>> -x @200.21.66.194 200.21.66.194
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 8066
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;194.66.21.\@200.in-addr.arpa.  IN      PTR

;; AUTHORITY SECTION:
in-addr.arpa.           7155    IN      SOA     a.root-servers.net.
dns-ops.arin.net. 2007012904 1800 900 691200 10800

;; Query time: 0 msec
;; SERVER: 200.30.115.164#53(200.30.115.164)
;; WHEN: Mon Jan 29 11:05:37 2007
;; MSG SIZE  rcvd: 112

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 55288
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;200.21.66.194.                 IN      A

;; AUTHORITY SECTION:
.                       10800   IN      SOA     a.root-servers.net.
nstld.verisign-grs.com. 2007012801 1800 900 604800 86400

;; Query time: 273 msec
;; SERVER: 200.30.115.164#53(200.30.115.164)
;; WHEN: Mon Jan 29 11:05:37 2007
;; MSG SIZE  rcvd: 106


I see the flag "ra" now with the -x option on all the queries above. I'm
making these queries from another server.

If the "ra" flag is on, DNS can resolve?

Thanks

Carlos Bernat





2007/1/29, Stephane Bortzmeyer <bortzmeyer at nic.fr>:
>
> On Mon, Jan 29, 2007 at 10:00:47AM -0500,
> Carlos Alberto Bernat Orozco <cabo81 at gmail.com> wrote
> a message of 31 lines which said:
>
> > On the prefered DNS I configured my server IP but does not resolve.
>
> The name server you showed us, 200.21.66.194, seems
> authoritative-only, and provides no recursion (no "ra" option in the
> flags), so, it cannot be used as a resolver.
>
>




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