multiple domains on 1 IP # - file layout

[Kevin Darcy]

I just noticed that your SOA values are possibly a little out of whack.

REFRESH = 1 day? Are you sure you want to wait that long for changes to 
propagate to your slaves? Refresh queries are relatively cheap.

MINIMUM = 1 day? (Although it's still called MINIMUM, this field was 
redefined in RFC 2308 to be the negative-caching TTL). This means that 
whenever anyone gets a "no such name" response from your nameservers, 
they won't query the name again for as long as another day. Which means 
new names you add to your domains could take up to a day to be "visible" 
everywhere. Is that what you really want?

EXPIRE looks reasonable. So does RETRY, but if you decide to lower 
REFRESH you should probably also lower RETRY proportionately.

                                                                         
                     - Kevin

Kevin Darcy wrote:
> No, you can't mix data from different zones like that. You need a 
> separate zone definition in named.conf for each zone, and the nameserver 
> needs to see only data in the zonefile which is *specific* for that zone 
> (with the only exception being "glue" records for child zones, but that 
> doesn't apply here). If named sees data in the zone file for a different 
> zone, then it'll give you a "out of zone data" error.
>
> Having said that, some people use the "trick" of using the same zone 
> file for multiple zones, using single-label ("relative") names and the 
> "@" syntax, e.g.
>
> === named.conf ===
> zone "pianos4all.biz" {
>     type master;
>     file "common";
> };
>
> zone "xtufd.org" {
>     type master;
>     file "common";
> };
>
> === ${DATADIR}/common ===
>
> $TTL 3h
> ; Definition of zones at @
> @         IN	SOA	olaf.com.	admin.olaf.com.	(
> 		2008070301	; Serial (date, 2 digit version of day)
> 		86400		; refresh (1 day)
> 		7200		; retry (2 hrs)
> 		8640000		; expire (100 days)
> 		86400 )		; minimum (1day)
> 			
> ; name servers
> 				IN	NS	ns3.olaf.com.
> 				IN	NS	ns4.olaf.com.
>
> ; MX records
> 				IN	A	50	mail.olaf.com.
>
> ; Hosts
>             			IN	A	192.168.50.73	
> 	
> ; nickname
> www         			IN      CNAME   @
>
> (In the olaf.com zone itself, you'd still need to define the A records 
> for ns3.olaf.com and ns4.olaf.com, so it wouldn't use "common" zone file 
> for that one).
>
>                                                               - Kevin
>
> Adam Smith wrote:
>   
>> Hello,
>> I am setting up a nameserver - multiple domains on 1 IP #. BIND 9.3.1 on 
>> FreeBSD 6.x;
>> I am not too clear on the exact format for these files in the master 
>> folder, could someone suggest the correct way. Special concerns as to 
>> whether all the domains should be listed here as under "Hosts" and 
>> "nickname". There is only one reverse_dns file used in the master folder 
>> and one db.* for each of the domains (zones) listed in the named.conf file.
>> Thanks!
>>
>>
>>
>> __________________________________________________________________________
>>
>> $TTL 3h
>> ; Definition of zones at olaf.com.
>> olaf.com.	IN	SOA	olaf.com.	admin.olaf.com.	(
>> 		2008070301	; Serial (date, 2 digit version of day)
>> 		86400		; refresh (1 day)
>> 		7200		; retry (2 hrs)
>> 		8640000		; expire (100 days)
>> 		86400 )		; minimum (1day)
>> 			
>> ; name servers
>> 				IN	NS	ns3.olaf.com.
>> 				IN	NS	ns4.olaf.com.
>> ns3.olaf.com.			IN	A	192.168.50.73
>> ns4.olaf.com.			IN	A	192.168.50.73
>>
>>
>> ; MX records
>> 				IN	A	50	mail.olaf.com.
>>
>> ; Hosts
>> pianos4all.biz.			IN	A	192.168.50.73	
>> xtufd.org.			IN	A	192.168.50.73		
>> sodas4all.biz.			IN	A	192.168.50.73		
>> sodas4all.com.			IN	A	192.168.50.73		
>> olaf.biz.			IN	A	192.168.50.73		
>> olaf.com.			IN	A	192.168.50.73		
>> we32.biz.			IN	A	192.168.50.73		
>> mimic.org.			IN	A	192.168.50.73		
>> incredible.info.		IN	A	192.168.50.73	
>> tango4all.biz.			IN	A	192.168.50.73		
>> allegro.biz.			IN	A	192.168.50.73		
>> chachacha.com.		        IN	A	192.168.50.73	
>> staccato.com.	                IN	A	192.168.50.73
>> saywho.biz.			IN	A	192.168.50.73		
>>
>>
>> ; nickname
>> www.pianos4all.biz.             IN      CNAME   pianos4all.biz.
>> www.xtufd.org.                  IN      CNAME   xtufd.org.
>> www.sodas4all.biz.              IN      CNAME   sodas4all.biz.
>> www.sodas4all.com.              IN      CNAME   sodas4all.com.
>> www.olaf.biz.                   IN      CNAME   olaf.biz.
>> www.olaf.com.                   IN      CNAME   olaf.com.
>> www.we32.biz.                   IN      CNAME   we32.biz.
>> www.mimic.org.                  IN      CNAME   mimic.org.
>> www.incredible.info.            IN      CNAME   incredible.info.
>> www.tango4all.biz.              IN      CNAME   tango4all.biz.
>> www.allegro.biz.                IN      CNAME   allegro.biz.
>> www.chachacha.com.              IN      CNAME   chachacha.com.
>> www.staccato.com.               IN      CNAME   staccato.com.
>> www.saywho.biz.                 IN      CNAME   saywho.biz.
>>
>> ______________________________________________________________________
>>
>>
>>
>> $TTL 3h
>> ; Definition for reverse DNS at olaf.com.
>> 73.50.168.192.in-adr.arpa.       IN      SOA     olaf.com. 
>> admin.olaf.com.        (
>>                                  2008070301      ; Serial (date, 2 digit 
>> version of day)
>>                                  86400           ; refresh (1 day)
>>                                  7200            ; retry (2 hrs)
>>                                  8640000         ; expire (100 days)
>>                                  86400 )         ; minimum (1day)
>>
>>
>> ; name servers
>> 73.50.168.192.in-adr.arpa.       IN      NS      ns3.olaf.com.
>> 73.50.168.192.in-adr.arpa.       IN      NS      ns4.olaf.com.
>>
>> ; Reversed hosts
>>
>> 73.50.168.192.in-adr.arpa.       IN      PTR     olaf.com.
>>
>>
>>
>>     
>
>
>
>
>