[Pdns-dev] Dynamic dns update support

[Ruben d'Arco]

Hi,

On Thu, Feb 21, 2013 at 10:05:11AM -0500, John Reuning wrote:
> Thanks again for the help.  "allow-2136-from=" seems to clear the
> ACLs, and key-only auth works great.

Can you share your configuration? If i do 'allow-2136-from=' in my configuration without entries in domainmetadata, all i get is refused and that is actually how i intended it to be :-)

> In case anyone is interested, nsupdate works with either a bind-style
> key config file (the -k option) or a key section in the nsupdate input
> to powerdns.  One difference seems to be that bind accepts updates
> without the zone section.  Powerdns refuses updates without it.  I
> don't mind the requirement.  The spec has an RRset requirement but is
> vague on whether a zone section must be present or not.

Interesting. Which version of bind/nsupdate are you using? 
Leaving the 'zone' out on my end works fine:

[17:04:51] cyclops at prof-x:~/dev/powerdns$ nsupdate <<!
server 127.0.0.3 5300
update add pietje.test.dyndns 600 A 1.1.1.1
send
answer
!

Answer:
;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id:  63844
;; flags: qr aa; ZONE: 1, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0
;; ZONE SECTION:
;test.dyndns.                   IN      SOA

Regards,
	Ruben 

> -John
> 
> On Thu, Feb 21, 2013 at 2:37 AM, Ruben d'Arco <cyclops at prof-x.net> wrote:
> > Hi John,
> >
> > Indeed, you need to enable it. You might want to go into the pdns source folder $source/pdns/docs and type 'make'.
> > This will create/build the documentation. There's a chapter on rfc2136 :-)
> >
> > What the docs will tell you is that there is also a global 'allow-2136-from' setting that allows you to filter who is able to send updates.
> > The default is 0.0.0.0/0 which is everybody, so be aware of that!
> > You can also use ALLOW-2136-FROM and/or TSIG-ALLOW-2136 in the domainmetadata table.
> >
> > Happy rfc2136'ing ;-)
> >
> > Regards,
> >         Ruben
> >
> > On Wed, Feb 20, 2013 at 06:36:13PM -0500, John Reuning wrote:
> >> Nevermind.  30 seconds after I sent the last email, I realized there
> >> may be a config option to turn it on.  30 seconds after that, I found
> >> experimental-rfc2136 in the code.  nsupdate is very happy now.
> >>
> >> Thanks,
> >>
> >> -John
> >>
> >> On Wed, Feb 20, 2013 at 6:30 PM, John Reuning <john at ibiblio.org> wrote:
> >> > Ruben,
> >> >
> >> > The rfc2136 branch builds and seems to run with normal functionality.
> >> > However, zone changes submitted via nsupdate result in a REFUSED
> >> > error.  I tried setting loglevel=9 but don't see any debug output.
> >> > Does your implementation work with nsupdate?
> >> >
> >> > Thanks,
> >> >
> >> > -John