[MaraDNS list] ID mismatch/SERVFAIL errors on my new deadwood

Sam Trenholme strenholme.usenet at gmail.com
Thu Jun 2 16:11:50 EDT 2011


Works for me:

$ dig @127.0.0.1 secure.newegg.com

; <<>> DiG 9.7.0-P2-RedHat-9.7.0-5.P2.el6_0.1 <<>> @127.0.0.1 secure.newegg.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 28637
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;secure.newegg.com.             IN      A

;; Query time: 2669 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Jun  2 15:05:21 2011
;; MSG SIZE  rcvd: 35

$ dig @127.0.0.1 secure.newegg.com

; <<>> DiG 9.7.0-P2-RedHat-9.7.0-5.P2.el6_0.1 <<>> @127.0.0.1 secure.newegg.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22366
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;secure.newegg.com.             IN      A

;; ANSWER SECTION:
secure.newegg.com.      1800    IN      A       216.52.208.188

;; Query time: 163 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Jun  2 15:05:36 2011
;; MSG SIZE  rcvd: 51



2011/6/2 David Kowis <dkowis at shlrm.org>:
> Hi,
>
> I posted before my configuration that had issues with the rfc_1918 line.
>
> I also had to enable the MX lookup stuff, because I run my own mail server.
>
> Sometimes, however, I get errors resolving things:
>
> root at monitor:~# dig @10.10.220.231 secure.newegg.com
> ;; Warning: ID mismatch: expected ID 19551, got 45781
>
> ; <<>> DiG 9.7.3-RedHat-9.7.3-1.fc14 <<>> @10.10.220.231 secure.newegg.com
> ; (1 server found)
> ;; global options: +cmd
> ;; connection timed out; no servers could be reached
>
>
> This is a Fedora 14 box, and I'm just doing a simple dig. Doing the same
> request a few moments later, I get a proper result. This seems to happen
> randomly, I'm unable to place what specifically causes it. Actually, I
> think I can get it to happen the first time I turn the server on
> querying for secure.newegg.com:
>
> root at monitor:~# dig @10.10.220.231 secure.newegg.com
>
> ; <<>> DiG 9.7.3-RedHat-9.7.3-1.fc14 <<>> @10.10.220.231 secure.newegg.com
> ; (1 server found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 59764
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;secure.newegg.com.             IN      A
>
> ;; Query time: 2605 msec
> ;; SERVER: 10.10.220.231#53(10.10.220.231)
> ;; WHEN: Thu Jun  2 14:07:20 2011
> ;; MSG SIZE  rcvd: 35
>
>
> Right after a restart of the service, I get this. I was able to query
> out www.google.com right before doing this, running it a second time, I
> got another SERVFAIL.
>
> the third time:
> root at monitor:~# dig @10.10.220.231 secure.newegg.com
>
> ; <<>> DiG 9.7.3-RedHat-9.7.3-1.fc14 <<>> @10.10.220.231 secure.newegg.com
> ; (1 server found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63495
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;secure.newegg.com.             IN      A
>
> ;; ANSWER SECTION:
> secure.newegg.com.      1800    IN      A       216.52.208.188
>
> ;; Query time: 53 msec
> ;; SERVER: 10.10.220.231#53(10.10.220.231)
> ;; WHEN: Thu Jun  2 14:08:21 2011
> ;; MSG SIZE  rcvd: 51
>
>
> Something's not right, but I'm uncertain what verbosity level will barf
> enough data out in the logs to reveal it.
>
>
> At level 10, all I have in my syslog:
> Jun  2 14:09:58 zephon Deadwood: Deadwood version 3.0.02
> Jun  2 14:09:58 zephon Deadwood: Deadwood: A DNS UDP non-recursive cache
> (IPv6 supported)
> Jun  2 14:09:58 zephon Deadwood: Verbose_level set to 10
> Jun  2 14:09:58 zephon Deadwood: We bound to 1 addresses
> Jun  2 14:09:58 zephon Deadwood: add_constant is set to 0x24dc4f48
>
>
> I'm uncertain as to why deadwood can sometimes resolve secure.newegg.com
> (and other sites, but I've been testing with secure.newegg.com) and
> other times fail with SERVFAIL or respond with an invalid ID.
>
> Thanks,
> David
>
>


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