setting up reverse DNS to dozens of /24 networks

Mark Andrews Mark_Andrews at isc.org
Fri Aug 22 23:52:09 UTC 2008


	Hal,
	     ARIN is only going to delegate to you the /24's.
	Whatever you do you are going to *have* to set up
	zones for those /24's.  Once you have set up the zones
	there is no point in making things more complicated.

	Mark

	
> I pulled this from one of my /16 zone's , but the syntax generates
> statements for each /24.
> 
> $GENERATE 0-255 $.20 PTR c75-111-20-$.unknwn.ab.dh.suddenlink.net.
> $GENERATE 0-255 $.21 PTR c75-111-21-$.unknwn.ab.dh.suddenlink.net.
> $GENERATE 0-255 $.22 PTR c75-111-22-$.unknwn.ab.dh.suddenlink.net.
> $GENERATE 0-255 $.23 PTR c75-111-23-$.unknwn.ab.dh.suddenlink.net.
> $GENERATE 0-255 $.24 PTR c75-111-24-$.unknwn.ab.dh.suddenlink.net.
> $GENERATE 0-255 $.25 PTR c75-111-25-$.unknwn.ab.dh.suddenlink.net.
> $GENERATE 0-255 $.26 PTR c75-111-26-$.unknwn.ab.dh.suddenlink.net.
> 
> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> Behalf Of Hal Jackson
> Sent: Thursday, August 21, 2008 5:17 PM
> To: comp-protocols-dns-bind at isc.org
> Subject: setting up reverse DNS to dozens of /24 networks
> 
> My client owns several dozen /24 networks but not an entire /16. All
> these 
> networks are contiguous, like
> 
> 192.168.128
> 192.168.129
> 192.168.130
> .
> .
> 192.168.230
> 
> the parent nameserver at ARIN delegates these one at a time.
> 
> Is there a simple way of consolidating all these into one (zone) file,
> or 
> are many separate zones required, each with its own file directive in 
> named.conf?
> 
> 
> ARIN doesn't like over summarizing your zone, so we need to specifically
> 
> match the hint record on the parent. (In other words, we can't just do a
> 
> 168.192.in-addr.arpa zone on our NS because we don't own it all, and no
> SOA 
> records exist for 128,129,130,...230.
> 
> Any ideas other than many separate zone statements and files? 
> 
> 
> 
> 
> 
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org


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