From Newsgroup: comp.protocols.dns.bind

In their (mailgun) instructions to the client. And then the client wanted us to include those to his zone.

CNAME of course is useful in general, but like I wrote, *here* it is not needed.

Jukka

On 23.08.20 09:59, Jukka Pakkanen wrote:

Yes, I think the whole CNAME is useless here anyway.

CNAME is useful, but it does not (and can not) work the way you want.

These were the recommendations of this service provider, mailgun though..

where? the CNAME issue is long known and clarifies in RFC 2181, section 10.1. CNAME resource records ...published in 1997.

Lähettäjä: bind-users <bind-users-bounces@lists.isc.org> Puolesta Ben >Croswell
Lähetetty: 23. elokuuta 2020 2:24
Vastaanottaja: ML BIND Users <bind-users@lists.isc.org>
Aihe: Re: CNAME / TXT

If you uncomment that mg CNAME you end up with a CNAME mx and TXT at the same node in to the DNS tree and that is illegal. That is why you get the error "cname and other data". The mx and txt are the other data.
On Sat, Aug 22, 2020, 8:19 PM Jukka Pakkanen <jukka.pakkanen@qnet.fi<mailto:jukka.pakkanen@qnet.fi>> wrote:
Cannot figure out what is wrong here… must be something simple but
after sitting in airplanes the last 40 hours and it’s 2am…

Only when I comment out the two lines in the end of the named.harriot, it goes through and BIND load the zone. With those two lines, get the following:

C:\DNS\etc\namedb>named-checkzone harriot.fi<http://harriot.fi> >named.harriot
dns_master_load: named.harriot:33: mg.harriot.fi<http://mg.harriot.fi>: >CNAME and other data
dns_rdata_fromtext: named.harriot:35: syntax error zone >harriot.fi/IN<http://harriot.fi/IN>: loading from master file
named.harriot failed: CNAME and other data zone harriot.fi/IN<http://harriot.fi/IN>: not loaded due to errors.

;
; File: named.harriot
;

$TTL 864

@ IN SOA ns1.qnet.fi<http://ns1.qnet.fi>. helpdesk.qnet.fi<http://helpdesk.qnet.fi>. (
202008243 ; serial number
28800 ; refresh every 12 hours
7200 ; retry after 2 hours
604800 ; expire after 2 weeks
3600) ; default ttl is 2 days

harriot.fi<http://harriot.fi>. IN A 35.214.111.143
IN MX 10 qntsrv8.qnet.fi<http://qntsrv8.qnet.fi>.
IN MX 10 qntsrv9.qnet.fi<http://qntsrv9.qnet.fi>.
IN NS ns1.qnet.fi<http://ns1.qnet.fi>.
IN NS ns2.qnet.fi<http://ns2.qnet.fi>.
IN NS ns3.qnet.fi<http://ns3.qnet.fi>.
IN NS ns1.z.fi<http://ns1.z.fi>.
IN NS ns2.z.fi<http://ns2.z.fi>.

www IN A 35.214.111.143
api IN A 35.214.111.143
webmail IN CNAME mail.qnet.fi<http://mail.qnet.fi>. >_autodiscover._tcp IN SRV 0 5 443 mail.qnet.fi<http://mail.qnet.fi>.

dev IN A 35.214.111.143

; mg IN CNAME eu.mailgun.org<http://eu.mailgun.org>.
mg IN MX 10 mxa.eu.mailgun.org<http://mxa.eu.mailgun.org>.
mg IN MX 10 mxb.eu.mailgun.org<http://mxb.eu.mailgun.org>.
mg IN TXT v=spf1 include:eu.mailgun.org<http://eu.mailgun.org> ~all

; smtp_domainkey.mg<http://smtp_domainkey.mg> IN TXT "k=rsa; p=MII-----AQAB"

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