[Pdns-users] External CNames

InterNetX - Marco Schrieck marco.schrieck at internetx.de
Fri Mar 5 16:31:10 UTC 2010


Hello,

Ahh I found the failure. I was confused then if you write an external CNAME with dot at the
end it works, but internal CNAMEs not.

Regards
Marco


On Fri, Mar 05, 2010 at 02:31:24PM +0100, InterNetX - Marco Schrieck wrote:
> Hello,
> 
> I found also another strange issue. That with the dot seam to be a bug we can
> see how pdns select this. but on to different maschines both with pdns 2.9.22 
> I got diffent answers.
> 
> Server 1 send a SERVFAIL an not CNAME Record to the customer, Server 2 sends
> a CNAME in the answer but also SERVFAIL
> 
> Marco
> 
> Server 1
> ========
> 
> # dig @ns1 redir.testdomain.de
> 
> ; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.1 <<>> @ns1 redir.testdomain.de
> ; (1 server found)
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 41042
> ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
> 
> ;; QUESTION SECTION:
> ;redir.testdomain.de.               IN      A
> 
> ;; Query time: 0 msec
> ;; SERVER: 192.168.133.21#53(192.168.133.21)
> ;; WHEN: Fri Mar  5 14:02:
> 
> select content,ttl,prio,type,domain_id,name from records where name='redir.testdomain.de'
> select content,ttl,prio,type,domain_id,name from records where name='green.testdomain.de.'
> select content,ttl,prio,type,domain_id,name from records where type='SOA' and name='green.testdomain.de.'
> 
> logfile: Not authoritative for 'green.testdomain.de.', sending servfail to 192.168.133.1 (recursion was desired)
> 
> mysql records table
> | 60883942 | 6157689 | redir.testdomain.de | CNAME | green.testdomain.de.  |  900 |    0 |        NULL |
> | 60883919 | 6157689 | green.testdomain.de | A     | 25.12.218.216         |  900 |    0 |        NULL |
> 
> ---------------------
> 
> Server 2
> ========
> 
> pdns1:~$ dig www2.00000f.mobi @10.116.1.2
> 
> ; <<>> DiG 9.3.4 <<>> www2.00000f.mobi @10.116.1.2
> ; (1 server found)
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 5675
> ;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
> 
> ;; QUESTION SECTION:
> ;www2.00000f.mobi.              IN      A
> 
> ;; ANSWER SECTION:
> www2.00000f.mobi.       43200   IN      CNAME   www.00000f.mobi.
> 
> ;; Query time: 56 msec
> ;; SERVER: 10.116.1.2#53(62.116.161.124)
> ;; WHEN: Fri Mar  5 14:08:09 2010
> ;; MSG SIZE  rcvd: 63
> 
> sql select:
> select content,ttl,prio,type,domain_id,name from records where name=\'www2.00000f.mobi\'
> select content,ttl,prio,type,domain_id,name from records where name=\'www.00000f.mobi.\'
> select content,ttl,prio,type,domain_id,name from records where name=\'*.00000f.mobi.\'
> select content,ttl,prio,type,domain_id,name from records where type=\'SOA\' and name=\'www.00000f.mobi.\'
> select content,ttl,prio,type,domain_id,name from records where type=\'SOA\' and name=\'00000f.mobi.\'"
> 
> log entry:
> Not authoritative for \'www.00000f.mobi.\', sending servfail to 10.116.1.2 (recursion was desired)"
> 
> 
> mysql records table:
> | 5038169 |    847674 | www.00000f.mobi   | A     | 127.0.0.1         |   999 |    0 |        NULL |
> | 5038175 |    847674 | www2.00000f.mobi  | CNAME | www.00000f.mobi.  | 43200 |    0 |        NULL |
> 
> ---------------------
> 


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