Hi,

bert hubert pravi:
On Tue, Sep 04, 2007 at 06:47:05PM +0200, Marko Kobal wrote:
However, I do have another question. If I want such a domain to be resolvable (like www.urad.si CNAME urad.blogspot.com) I need to open (allow) my recursor for the whole world. Would it not be better to

No, that is not needed. Resolvers will follow the CNAME chain regardless.

Hmmm ...


In recursor.conf:

allow-from=127.0.0.1

In pdns.conf:

allow-recursion=127.0.0.1, 193.77.181.76

- 193.77.181.76 is the public IP of the DNS server we are talking about
- urad.si is hosted on 193.77.181.76
- www.urad.si CNAME urad.blogspot.com
- urad.blogspot.com is an external domain

+++

Now, exec "nslookup www.urad.si dns1.arctur.si" on 193.77.124.79 host:

---
nslookup www.urad.si dns1.arctur.si
Server:         dns1.arctur.si
Address:        193.77.181.76#53

** server can't find www.urad.si: SERVFAIL
---

... from log:
Not authoritative for 'urad.blogspot.com', sending servfail to 193.77.124.79 
(recursion was desired)

Now, exec "nslookup www.urad.si dns1.arctur.si" on the DNS server itself 
(193.77.181.76):

---
nslookup www.urad.si dns1.arctur.si
Server:         dns1.arctur.si
Address:        193.77.181.76#53

Non-authoritative answer:
www.urad.si     canonical name = urad.blogspot.com.
urad.blogspot.com       canonical name = blogspot.l.google.com.
Name:   blogspot.l.google.com
Address: 72.14.207.191
---

+++

So I can limit recursor to not be available for external servers as an service (this I 
have already done by putting it on the 5300 port and closing into the firewall), but can 
NOT limit the PDNS to only "internaly" recurse? Am I right or not?

What I want to do is that urad.blogspot.com would NOT be directly resolvable 
from the whole world through my DNS server, that is:

nslookup urad.blogspot.com dns1.arctur.si
Server:         dns1.arctur.si
Address:        193.77.181.76#53

** server can't find urad.blogspot.com: SERVFAIL

--> OK

But I want that www.urad.si woudl be resolvable ... Are we understanding each 
other here? Is this possible to achieve or not?


--
Kind regards, Marko Kobal.
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