Problem with name resolving

[Markus Feldmann]

Am 01.07.2011 22:43, schrieb Lyle Giese:
> On 07/01/11 14:13, Markus Feldmann wrote:
>> Am 01.07.2011 18:35, schrieb Lyle Giese:
>>> You are right in that you only need one host at dyndns.org to update
>>> your ip address, but you want to have two different websites. The proper
>>> way to do that is with CNAME entries pointing to the host you are
>>> updating at connect time.
>>>
>> Do i need to open my firewall for port 53? :-( Is there another way?
>> maybe to add two virtual hosts at dyndns.org with the same IP?
>>
>> regards Markus
>>
>
> I don't know dyndns.com services that well. I don't know what they
> support or do not support directly.
>
> Using an example, I have lcrcomputer.com. If I setup a dynamic dns host
> with dyndns.org and wanted two host names pointing there, I would do this:
>
> 1) setup a dynamic host at dyndns: host.dyndns.org
>
> 2) in the LCRCOMPUTER.COM zone I would add two entries:
>
> host1.lcrcomputer.com. in cname host.dyndns.org.
> host2.lcrcomputer.com. in cname host.dyndns.org.

In which zone file? "db.feldland.lan" or in "db.192.168.0" ? or in both?

And would it be possible to only allow the DNS-Server at dyndns.org and 
my provider to contact my bind9 server and not to the rest of the world? 
Or does it make no sense for name resolving?

regards Markus