Wildcard SRV record?

Darcy Kevin (FCA) kevin.darcy at fcagroup.com
Mon Oct 31 18:21:33 UTC 2016

Correct, wildcards don't work that way; in fact, it would be more accurate to say that _vlmcs._tcp.*.foo. isn't a wildcard at all (it's just a DNS name that happens to have an asterisk as one of its labels). See RFC 4592.

							- Kevin

-----Original Message-----
From: bind-users [mailto:bind-users-bounces at lists.isc.org] On Behalf Of Stephen Pape
Sent: Monday, October 31, 2016 12:36 PM
To: bind-users at lists.isc.org
Subject: Wildcard SRV record?

Hello all,

I have bind configured with a single TLD (.foo), and inside that are records for a large number of subdomains (machine1.a.foo, machine2.a.foo, machine1.b.foo, machine2.b.foo, etc.). DHCP clients are assigned a domain based on some factors, but it might be a.foo, b.foo, c.foo, etc.

I'm trying to add a SRV record for everyone under .foo. I've tried:

_vlmcs._tcp.*.foo.        IN      SRV     0 0 1688 ais-dc01.ainfosec.com.

... but it seems that wildcards don't work that way. I've tried something similar with CNAMEs, but that didn't work either.

What DOES work is adding a CNAME record for each and every domain that I need. So a CNAME for _vlmcs._tcp.a.foo, _vlmcs._tcp.b.foo, etc.

Is there a better way for me to do this, or do I have to generate a whole lot of specific CNAME records?


Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list

bind-users mailing list
bind-users at lists.isc.org

More information about the bind-users mailing list