[Pdns-users] CNAME not advertised on A/AAAA request

Kevin Olbrich ko at sv01.de
Thu Jan 17 13:15:25 UTC 2019


Hi!

I don't know what I am doing wrong here:

Client PC:
C:\Users\kolbrich>nslookup cgn01.example.com. 10.100.0.210
(root)
        primary name server = ns01.srvfarm.net
        responsible mail addr = dnsnoc.example-it.de
        serial  = 1
        refresh = 10800 (3 hours)
        retry   = 3600 (1 hour)
        expire  = 604800 (7 days)
        default TTL = 3600 (1 hour)
Server:  UnKnown
Address:  10.100.0.210

*** cgn01.example.com. wurde von UnKnown nicht gefunden: Server failed.

PowerDNS Auth:
Jan 17 14:04:28 dnsmaster01.srvfarm.net pdns_server[19643]: Exception
building answer packet for cgn01.example.com/A (Parsing record content
(try 'pdnsutil check-zone'): unable to parse IP address) sending out
servfail
Jan 17 14:04:28 dnsmaster01.srvfarm.net pdns_server[19643]: Exception
building answer packet for cgn01.example.com/AAAA (Parsing record
content (try 'pdnsutil check-zone'): unable to parse IP address)
sending out servfail

Client PC:
C:\Users\kolbrich>nslookup -q=CNAME cgn01.example.com. 10.100.0.210
(root)
        primary name server = ns01.srvfarm.net
        responsible mail addr = dnsnoc.example-it.de
        serial  = 1
        refresh = 10800 (3 hours)
        retry   = 3600 (1 hour)
        expire  = 604800 (7 days)
        default TTL = 3600 (1 hour)
Server:  UnKnown
Address:  10.100.0.210

cgn01.example.com      canonical name = ppdigital.example-dns.de



Why does the Auth server not return the CNAME as a hint?
Not sure why this stopped working on newer releases... This is PDNS 4.1.5.

There is no A/AAAA record, just this single CNAME entry for the name.



Example using Windows DNS:
C:\Users\kolbrich>nslookup jira.intra.example-it.de.
Server:  swde0041.intra.example-it.de
Address:  192.168.80.1

Name:    slde0009.intra.example-it.de
Address:  192.168.81.9
Aliases:  jira.intra.example-it.de

Kind regards
Kevin


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