problem with domain and sub-domain configuration

[Barry Margolin]

In article <mailman.1343.1272903565.21153.bind-users at lists.isc.org>,
 Gregory Hicks <ghicks at hicks-net.net> wrote:

> > Date: Mon, 03 May 2010 17:37:46 +0200
> > From: fddi <fddi at gmx.it>
> > To: Bind Users Mailing List <bind-users at lists.isc.org>
> > Subject: problem with domain and sub-domain configuration
> > X-FuHaFi: 0.68000000000000005
> > 
> > 
> > 
> > Hello I have one domain
> > 
> > test.com with namserver ns.test.com (10.0.0.1)
> > 
> > and a subdomain
> > 
> > cr.test.com with nameserver ns.cr.test.com (10.1.0.1)
> > 
> > 
> > my problem is that if I update hostnames inside test.com zone
> > updates are not seen by cr.test.com nameserver
> 
> Do you update the serial number in the zone file before you save the 
> file?  
> 
> What you describe seems indicative of no update.  The serial must be 
> bumped once per update.  This indicates that the zone has been changed 
> and a reload is necessary.  After you save the zone file, execute a 
> "rndc reload <zone>" to make named reload the zone.

The serial number is only used by slave servers, not forwarding servers.

> Hope this helps.
> 
> > 
> > they are seen if I restart named on cr.test.com
> > 
> > 
> > actually on ns.cr.test.com I have the following directive
> > 
> > zone "test.com" IN {
> >         type forward;
> >         forward only;
> >         forwarders { 10.0.0.1; };
> > };
> > 
> > but when I update the father zone test.com for example I add an ip 
> address,
> > the update is not seen by cr.test.com nameserver and I have to restart 
> > named and after that
> > it works. So that clients using cr.test.com nameserver cannot see 
> > updates to test.com domain ip addresses.
> > 
> > I do not know how to fix this problem unless I configure cr.test.com 
> to 
> > be slave of test.com
> > but i did not want to do so.

How long do you have $TTL and the negative cache TTL in the SOA record 
set to?  10.1.0.1 will cache the responses it gets, so you may need to 
wait this long for it to pick up changes that you make.

> > 
> > any hints ?
> > 
> > thank you
> > 
> > Rick
> > 
> > _______________________________________________
> > bind-users mailing list
> > bind-users at lists.isc.org
> > https://lists.isc.org/mailman/listinfo/bind-users
> 
> ---------------------------------------------------------------------
> Gregory Hicks                           | Principal Systems Engineer
>                                         | Direct:   408.569.7928
> 
> People sleep peaceably in their beds at night only because rough men
> stand ready to do violence on their behalf -- George Orwell
> 
> The price of freedom is eternal vigilance.  -- Thomas Jefferson
> 
> "The best we can hope for concerning the people at large is that they
> be properly armed." --Alexander Hamilton

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
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