[Pdns-users] Weird wildcard behavior

[Gencer W. Genç]

Update: I have redefined all records i think i made a mistake on some
records. However, I still get infinite wildcard issues.

 

So, this record:

 

*.test.mydomain.com IN A 127.0.0.1

 

Responds on:

 

another.sub.domain.level.test.mydomain.com -> 127.0.0.1

I want to limit it two one level of wildcard subdomain.

 

From: Pdns-users <pdns-users-bounces at mailman.powerdns.com
<mailto:pdns-users-bounces at mailman.powerdns.com> > On Behalf Of Gencer W.
Genç via Pdns-users
Sent: Sunday, February 9, 2020 1:23 AM
To: pdns-users at mailman.powerdns.com <mailto:pdns-users at mailman.powerdns.com>

Subject: [Pdns-users] Weird wildcard behavior

 

I am trying to add wildcard support for a domain like:

 

*.mydomain.com IN A 127.0.0.1

 

I expect these results:

 

one.mydomain.com -> 127.0.0.1

two.mydomain.com -> 127.0.0.1

 

However, This is also work for:

 

one.one.mydomain.com -> 127.0.0.1

 

As you can see, "one.one" is a two level subdomain. I only match single
level subdomain and return as 127.0.0.1. So for two level domains or three
level and goes on I expect this:

 

Expected Result:

 

one.one.mydomain.com -> NXDOMAIN

one.two.three.one.mydomain.com -> NXDOMAIN 

 

Actual Result:

 

one.one.mydomain.com -> 127.0.0.1

one.two.three.one.mydomain.com -> 127.0.0.1

 

=================== EXAMPLES ===================

Records/Rules:

 

*.mydomain.com IN A 1.1.1.1

*.one.mydomain.com IN A 4.4.4.4

*.two.mydomain.com IN A 5.5.5.5

 

BIND Behavior:

 

test.mydomain.com -> 1.1.1.1

test.one.mydomain.com -> 4.4.4.4

test.two.mydomain.com -> 5.5.5.5 

hello.test.two.mydomain.com -> NXDOMAIN

 

 

PowerDNS Behavior: 

 

test.mydomain.com -> 1.1.1.1

test.one.mydomain.com -> 1.1.1.1 

test.two.mydomain.com -> 1.1.1.1

hello.test.two.mydomain.com -> 1.1.1.1

 

=================== EXAMPLES ===================

 

 

How can i get the BIND result as i expected on PowerDNS? Is this behavior
intentional? How c an i restrict wildcards to one level only?

 

Thanks,

Gencer.

 

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