occasional SERVFAIL error

[Peter Davies]

Hi Ludovit,

    It looks like you have two version of the jiscd.sk zone.

host -C jiscd.sk
Nameserver 2001:67c:1bd4:8080::20:
     jiscd.sk has SOA record ns1.gov.sk. gov.sk. 2024022501 7200 3600 
604800 86400
Nameserver 195.49.191.160:
     jiscd.sk has SOA record ns1.gov.sk. gov.sk. 2024022501 7200 3600 
604800 86400
Nameserver 2001:67c:1bd4:8080::10:
     jiscd.sk has SOA record ns1.gov.sk. gov.sk. 2024022800 7200 3600 
604800 86400
Nameserver 195.49.191.162:
     jiscd.sk has SOA record ns1.gov.sk. gov.sk. 2024022800 7200 3600 
604800 86400


Kind Regards Peter

On 29/02/2024 15.20, Ludovit Koren wrote:
>
> Hi,
>
> occasionally I get the following SERVFAIL error:
>
> dig www.jiscd.sk
>
> ; <<>> DiG 9.18.24 <<>> www.jiscd.sk
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 12207
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
>
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 1232
> ; COOKIE: 35fe56eb9b5f3f220100000065df34b4c313eedf839eac9d (good)
> ;; QUESTION SECTION:
> ;www.jiscd.sk.                  IN      A
>
> ;; Query time: 17 msec
> ;; SERVER: 127.0.0.1#53(127.0.0.1) (UDP)
> ;; WHEN: Wed Feb 28 14:27:16 CET 2024
> ;; MSG SIZE  rcvd: 69
>
>
>
> I can get rid of it only after issuing:
>
> rndc flush
>
> Afterwards it works for uncertain time.
>
> Could it be I have a configuration problem of my server (I have prefetch
> 0 set in options section of my server)? Is it a problem of the
> authorized domain server?
>
> Thank you very much.
>
> Regards,
>
> lk

-- 
Peter Davies