BIND up and working. 3 zones in sync. Summary inside

[Ryan McCain]

Ahh.. Good point.  I will test that out.


>>> On Fri, Sep 28, 2007 at  9:05 PM, in message
<barmar-02FF6C.22052228092007 at comcast.dca.giganews.com>, Barry Margolin
<barmar at alum.mit.edu> wrote: 
> In article <fdjg5m$2aq5$1 at sf1.isc.org>,
>  "Ryan McCain" <Ryan.McCain at dss.state.la.us> wrote:
> 
>> Hopefully this will help others out in the future.
>> 
>> Summary: We have been using dss.state.la.us for ages and have now been told 
>> to also start using dss.la.gov and dss.louisiana.gov.  Since any new DNS 
>> record would go in all 3 zones I wanted to create a way where I didn't have 
>> to manually update the 3 zone files.  With the help of many people on this 
>> list, this is how I was able to accomplish that goal.
>> 
>> dss.state.la.us zone file:
>> $TTL 3600       ; 1 hour
>> @               IN SOA  dss-cs99la14.dss.state.la.us. 
>> webmaster.dss.state.la.us. (
>>                                 2007092802  ; serial
>>                                 1200        ; refresh (20 minutes)
>>                                 600         ; retry (10 minutes)
>>                                 1209600     ; expire (2 weeks)
>>                                 3600        ; minimum (1 hour)
>> )
>>                         NS      dss-cs99la14.dss.state.la.us.
>>                         NS      dss-dr93la05.dss.state.la.us.
>>                         MX      10 smtp1
>> $INCLUDE /var/lib/named/shared.zone
>> 
>> ...Notice the $INCLUDE statement.  The shared.zone file contains the all of 
>> our DNS records:
>> 
>> -SNIP-
>> drac                    CNAME   dss-cs99ma22
>> dss-ad-idm-test         A       10.120.160.188
>> dss-adobe-suse          A       10.120.160.250
>> dss-adobe-w2k3          A       10.120.160.249
>> dss-as5300              CNAME   dss-sdis1722388
>> dss-asfr1719680         A       172.21.6.154
>> dss-br03nf03            A       10.122.32.239
>> dss-br17nf01            A       10.122.11.239
>> dss-br17nf02            A       10.122.13.239
>> dss-br17nf05            A       10.120.100.216
>> -SNIP-
>> 
>> I then linked the dss.la gov and dss.louisiana.gov  zone files to to the 
>> dss.state.la.us zone file:
>> # ln -s /var/lib/named/master/dss.state.la.us 
>> /var/lib/named/master/dss.la.gov
>> # ln -s /var/lib/named/master/dss.state.la.us 
>> /var/lib/named/master/dss.louisiana.gov
>> 
>> ..This way, when I add a DNS record to the shared.zone file I only need to 
>> update the serial number in one file since all 3 zones are linked to each 
>> other.
> 
> If all the files are linked together, why do you need the $INCLUDE file?  
> Just put everything in the dss.state.la.us file.
> 
> And why do you even need the links?  Just specify the same filename for 
> all three zones in named.conf?