caching nameserver not always working? status: SERVFAIL
TGS
spam at tachegroup.com
Sat Oct 9 09:20:08 UTC 2004
Hmmm, I am seeing behavior just like, and I thought it was an upstream ISP
problem. It seemed to start about a week ago.
on 10/08/2004 10:19 AM, Jason Vas Dias at jvdias at redhat.com wrote:
> Hi -
> You may need to uncomment the 'query-source'
> line in the named.conf that comes with
> caching-nameserver, ie:
>
> 'options { ...
> query-source address * port 53;
> ...
> };
> '
> This will make named use port 53 for queries
> it sends to other nameservers - otherwise,
> any available port will be used, which may be
> blocked by your firewall.
> If this doesn't work please let me know.
> Regards,
> Jason Vas Dias
> (bind & caching-nameserver maintainer, Red Hat)
>
> On Fri, 2004-10-08 at 06:29, Marius Andreiana wrote:
>> Hi
>>
>> With caching-nameserver from rawhide, not all hosts are resolved. I'm
>> not sure if it's my fault or named's.
>> /etc/resolv.conf has only the local machine IP:
>> nameserver 81.196.83.211
>> #nameserver 193.231.236.17
>> #nameserver 193.231.236.10
>>
>> iptables allows all traffic on port 53, but not others above 1000, as
>> bind says it might use.
>>
>> Although old rpms were removed (/etc/named.conf gone) and rawhide's
>> installed, rpm -V shows modified files:
>>
>> [root at marte var]# rpm -V bind-chroot caching-nameserver bind-libs
>> .M...... /var/named/chroot/dev
>> ....L... c /etc/named.conf
>> ....LUG. c /var/named/localdomain.zone
>> ....LUG. c /var/named/localhost.zone
>> ....LUG. c /var/named/named.broadcast
>> ....LUG. c /var/named/named.ca
>> ....LUG. c /var/named/named.ip6.local
>> ....LUG. c /var/named/named.local
>> ....LUG. c /var/named/named.zero
>>
>> named.conf has
>> // query-source address * port 53;
>> should this be uncommented?
>>
>> Directory /var/named/data/ is empty.
>>
>> Problem:
>> www.galuna.ro works, but marius.galuna.ro doesn't. Sometimes www doesn't
>> work, but galuna.ro works. dig returns status: SERVFAIL
>> Querying on ISP's nameserver works always. He's not hosting this site.
>>
>>
>> [root at marte var]# dig www.galuna.ro
>>
>> ; <<>> DiG 9.2.4 <<>> www.galuna.ro
>> ;; global options: printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44828
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 0
>>
>> ;; QUESTION SECTION:
>> ;www.galuna.ro. IN A
>>
>> ;; ANSWER SECTION:
>> www.galuna.ro. 344723 IN CNAME galuna.ro.
>> galuna.ro. 344723 IN A 213.157.162.252
>>
>> ;; AUTHORITY SECTION:
>> galuna.ro. 10630 IN NS ns1.galuna.ro.
>>
>> ;; Query time: 25 msec
>> ;; SERVER: 81.196.83.211#53(81.196.83.211)
>> ;; WHEN: Fri Oct 8 12:28:39 2004
>> ;; MSG SIZE rcvd: 79
>>
>> [root at marte var]# dig marius.galuna.ro
>>
>> ; <<>> DiG 9.2.4 <<>> marius.galuna.ro
>> ;; global options: printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 51278
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
>>
>> ;; QUESTION SECTION:
>> ;marius.galuna.ro. IN A
>>
>> ;; Query time: 23 msec
>> ;; SERVER: 81.196.83.211#53(81.196.83.211)
>> ;; WHEN: Fri Oct 8 12:28:43 2004
>> ;; MSG SIZE rcvd: 34
>>
>> [root at marte var]# dig @193.231.236.17 marius.galuna.ro
>>
>> ; <<>> DiG 9.2.4 <<>> @193.231.236.17 marius.galuna.ro
>> ;; global options: printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49067
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 9, ADDITIONAL: 9
>>
>> ;; QUESTION SECTION:
>> ;marius.galuna.ro. IN A
>>
>> ;; ANSWER SECTION:
>> marius.galuna.ro. 172800 IN CNAME galuna.ro.
>> galuna.ro. 172800 IN A 213.157.162.252
>>
>> ;; AUTHORITY SECTION:
>> ro. 171353 IN NS NS1.UNIVIE.AC.AT.
>> ro. 171353 IN NS SUNIC.SUNET.SE.
>> ro. 171353 IN NS DNS-RO.DENIC.DE.
>> ro. 171353 IN NS NS-EXT.VIX.COM.
>> ro. 171353 IN NS PRIMARY.ROTLD.ro.
>> ro. 171353 IN NS SECONDARY.ROTLD.ro.
>> ro. 171353 IN NS NS.UU.NET.
>> ro. 171353 IN NS NS.RIPE.NET.
>> ro. 171353 IN NS NS.AUSTRIA.EU.NET.
>>
>> ;; ADDITIONAL SECTION:
>> NS.UU.NET. 170151 IN A 137.39.1.3
>> NS.RIPE.NET. 169233 IN A 193.0.0.193
>> NS.RIPE.NET. 104651 IN AAAA 2001:610:240:0:53::193
>> NS.AUSTRIA.EU.NET. 170498 IN A 192.92.138.35
>> SUNIC.SUNET.SE. 170168 IN A 192.36.125.2
>> DNS-RO.DENIC.DE. 172719 IN A 81.91.161.76
>> NS-EXT.VIX.COM. 163522 IN A 204.152.184.64
>> PRIMARY.ROTLD.ro. 169808 IN A 192.162.16.18
>> SECONDARY.ROTLD.ro. 143759 IN A 193.230.31.225
>>
>> ;; Query time: 89 msec
>> ;; SERVER: 193.231.236.17#53(193.231.236.17)
>> ;; WHEN: Fri Oct 8 12:28:57 2004
>> ;; MSG SIZE rcvd: 460
>>
>> DNS check doesn't have major problems:
>> http://www.dnsreport.com/tools/dnsreport.ch?domain=galuna.ro
>>
>> Restarting local named makes dig solve the request:
>>
>> ; <<>> DiG 9.2.4 <<>> marius.galuna.ro
>> ;; global options: printcmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15587
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 0
>>
>> ;; QUESTION SECTION:
>> ;marius.galuna.ro. IN A
>>
>> ;; ANSWER SECTION:
>> marius.galuna.ro. 345600 IN CNAME galuna.ro.
>> galuna.ro. 345600 IN A 213.157.162.252
>>
>> ;; AUTHORITY SECTION:
>> galuna.ro. 345600 IN NS ns1.galuna.ro.
>>
>> ;; Query time: 760 msec
>> ;; SERVER: 81.196.83.211#53(81.196.83.211)
>> ;; WHEN: Fri Oct 8 13:26:50 2004
>> ;; MSG SIZE rcvd: 82
>>
>> Thanks
>> --
>> Marius Andreiana
>> Galuna - Solutii Linux in Romania
>> http://www.galuna.ro
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