[Pdns-users] PowerDNS backend
RBK1001
Paul.Sun at syniverse.com
Tue Feb 5 09:12:15 UTC 2013
understand.
I actually have a client that accessing my customerize non-sql backend. It
looks like I need to create a C application to work with the pDNS.
is there any sample that I can refer to.
- rbk
Aki Tuomi wrote:
>
> Um. No.
>
> It's like this:
>
> pipe and remotebackends act as conduits that let you use whatever as the
> real
> backend by converting the requests into some plain text format. Such as
> tab separated query or json.
>
> This lets you use script languages (perl,ruby,python,sh,whatnot) as the
> actual
> backend, and the middleware (pipe or remotebackend) handles the tedious
> task
> of converting the data from/to structures used by powerdns.
>
> On the other hand if you write your own native backend, you will have to
> create
> it with C++ and it has to handle the API itself. This is more complex work
> than just writing a read-locked script to handle requests. There are lots
> of
> examples you can use. You don't use pipe or remotebackend if you write a
> native
> backend.
>
> Aki
>
> On Tue, Feb 05, 2013 at 01:01:40AM -0800, RBK1001 wrote:
>>
>> Hi Aki
>>
>> understood.
>>
>> one silly question. even I need to write my own backend, I still need to
>> use
>> pipebackend option, rite?
>>
>> - rbk
>>
>>
>> Aki Tuomi wrote:
>> >
>> > It is difficult to measure performance for scripted APIs as that
>> depends
>> > on
>> > what you do in the backend. However, due to reasons like JSON parsing
>> and
>> > generally more complex processing, remotebackend is probably slower
>> than
>> > equivalent pipe backend.
>> >
>> > The best performance can be gained by writing your own backend, if
>> there
>> > is
>> > no backend to suit your needs. Although best performance here does
>> require
>> > some thought into the backend design.
>> >
>> > Aki Tuomi
>> >
>> > On Mon, Feb 04, 2013 at 05:03:40PM -0800, RBK1001 wrote:
>> >>
>> >> Thanks
>> >>
>> >> Considering performance, which backend should I used?
>> >>
>> >>
>> >>
>> >> Aki Tuomi wrote:
>> >> >
>> >> > And now that I started making this, it became evident that
>> >> remotebackend
>> >> > has a
>> >> > major failure in it. Good news is that there is a patch for it in
>> >> ticket
>> >> > #697
>> >> >
>> >> > The sample script is here: http://cmouse.desteem.org/remote.rb
>> >> >
>> >> > Aki Tuomi
>> >> >
>> >> > On Mon, Feb 04, 2013 at 01:08:48PM +0200, Aki Tuomi wrote:
>> >> >> Hi!
>> >> >>
>> >> >> I'll create a sample script for you.
>> >> >>
>> >> >> Aki
>> >> >>
>> >> >> On Mon, Feb 04, 2013 at 01:56:22AM -0800, RBK1001 wrote:
>> >> >> >
>> >> >> > Hi
>> >> >> >
>> >> >> > I need more information on how I can perform Remote Backend? is
>> >> there
>> >> >> any
>> >> >> > more information that I can refer to?
>> >> >> >
>> >> >> > - rbk
>> >> >> >
>> >> >> >
>> >> >> > Roman Gaufman-2 wrote:
>> >> >> > >
>> >> >> > > PowerDNS can fork the process as many times as you configure
>> using
>> >> >> > > the distributor-threads option.
>> >> >> > >
>> >> >> > > The good thing is the process remains running and kept running
>> by
>> >> >> > > PowerDNS's guardian so I think it will be more limited by your
>> >> >> process
>> >> >> > > than
>> >> >> > > by PowerDNS :)
>> >> >> > >
>> >> >> > > Re: Peter van Dijk
>> >> >> > >
>> >> >> > > Thank you for that, I will check it out :) - right now I also
>> read
>> >> >> the
>> >> >> > > openvpn ipp.txt file every time it changes to give vpn clients
>> >> their
>> >> >> own
>> >> >> > > hostname so the pipe backend gives a bit more flexibility, but
>> >> will
>> >> >> > > definitely check out the remotebackend!
>> >> >> > >
>> >> >> > > On 4 February 2013 09:39, RBK1001 <Paul.Sun at syniverse.com>
>> wrote:
>> >> >> > >
>> >> >> > >>
>> >> >> > >> Hi
>> >> >> > >>
>> >> >> > >> Thank for the reply. If using pipebackend/bindbackend, is the
>> >> >> performance
>> >> >> > >> acceptable when comparing within mysql/pgsql?
>> >> >> > >>
>> >> >> > >> - rbk
>> >> >> > >>
>> >> >> > >>
>> >> >> > >>
>> >> >> > >> Roman Gaufman-2 wrote:
>> >> >> > >> >
>> >> >> > >> > I really love the simplicity of pipe backend and why I use
>> >> >> powerdns
>> >> >> > >> > instead
>> >> >> > >> > of say bind, all you need to really do is add this to your
>> >> >> pdns.conf:
>> >> >> > >> >
>> >> >> > >> > launch=pipe,bind
>> >> >> > >> > pipe-command=/etc/powerdns/dns_pipe.rb
>> >> >> > >> >
>> >> >> > >> > And in your script, you can have something as simple as:
>> >> >> > >> >
>> >> >> > >> > require 'powerdns_pipe'
>> >> >> > >> > PowerDNS::Pipe.new.run! do
>> >> >> > >> > answer :name => question.name, :type => 'A', :ttl => 60,
>> >> >> :content =>
>> >> >> > >> > '1.2.3.4'
>> >> >> > >> > end
>> >> >> > >> >
>> >> >> > >> > The above is an example written in Ruby, but really it just
>> >> reads
>> >> >> DNS
>> >> >> > >> > requests from STDIN and writes DNS responses to STDOUT. You
>> can
>> >> >> add any
>> >> >> > >> > custom code that will figure out the IP to your question -
>> in
>> >> my
>> >> >> case I
>> >> >> > >> > plan to query a RESTFUL Rails API.
>> >> >> > >> >
>> >> >> > >> > Roman
>> >> >> > >> >
>> >> >> > >> > On 4 February 2013 09:29, RBK1001 <Paul.Sun at syniverse.com>
>> >> wrote:
>> >> >> > >> >
>> >> >> > >> >>
>> >> >> > >> >> Hi
>> >> >> > >> >>
>> >> >> > >> >> Thank for the information.
>> >> >> > >> >>
>> >> >> > >> >> I have a bit confused on the the pipebackend and bind
>> backend,
>> >> >> which
>> >> >> > >> one
>> >> >> > >> >> should I use?
>> >> >> > >> >>
>> >> >> > >> >> - rbk
>> >> >> > >> >>
>> >> >> > >> >>
>> >> >> > >> >> Ruben '_cyclops_' d'Arco wrote:
>> >> >> > >> >> >
>> >> >> > >> >> > Hi,
>> >> >> > >> >> >
>> >> >> > >> >> > This should be helpful as a first start:
>> >> >> > >> >> > http://doc.powerdns.com/backend-writers-guide.html
>> >> >> > >> >> >
>> >> >> > >> >> > Also have a look at the regression-test direcory, as it
>> is
>> >> >> quiet
>> >> >> > >> helpul
>> >> >> > >> >> > for testing your backend.
>> >> >> > >> >> >
>> >> >> > >> >> > Regards,
>> >> >> > >> >> > Ruben
>> >> >> > >> >> >
>> >> >> > >> >> > RBK1001 <Paul.Sun at syniverse.com> wrote:
>> >> >> > >> >> >
>> >> >> > >> >> >>
>> >> >> > >> >> >>Hi
>> >> >> > >> >> >>
>> >> >> > >> >> >>we would like to seek for an advice on the use of
>> backend.
>> >> >> > >> >> >>
>> >> >> > >> >> >>we understood that PowerDNS offers several backend
>> >> solutions,
>> >> >> > >> however,
>> >> >> > >> >> >>I
>> >> >> > >> >> >>would like to know is there a way to connect to our
>> >> >> customerized
>> >> >> > >> >> >>backend?
>> >> >> > >> >> >>Currently, we are using a non-sql customerized backend
>> with
>> >> >> large
>> >> >> > >> >> >>amount of
>> >> >> > >> >> >>data stored, and we would like to intergrate powerdns
>> with
>> >> it,
>> >> >> is
>> >> >> > >> there
>> >> >> > >> >> >>anyway we can do?
>> >> >> > >> >> >>
>> >> >> > >> >> >>- rbk
>> >> >> > >> >> >
>> >> >> > >> >> > --
>> >> >> > >> >> > Regards,
>> >> >> > >> >> > Ruben
>> >> >> > >> >> > _______________________________________________
>> >> >> > >> >> > Pdns-users mailing list
>> >> >> > >> >> > Pdns-users at mailman.powerdns.com
>> >> >> > >> >> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >> > >> >> >
>> >> >> > >> >> >
>> >> >> > >> >>
>> >> >> > >> >> --
>> >> >> > >> >> View this message in context:
>> >> >> > >> >>
>> >> http://old.nabble.com/PowerDNS-backend-tp34979116p34979385.html
>> >> >> > >> >> Sent from the PowerDNS mailing list archive at Nabble.com.
>> >> >> > >> >>
>> >> >> > >> >> _______________________________________________
>> >> >> > >> >> Pdns-users mailing list
>> >> >> > >> >> Pdns-users at mailman.powerdns.com
>> >> >> > >> >> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >> > >> >>
>> >> >> > >> >
>> >> >> > >> > _______________________________________________
>> >> >> > >> > Pdns-users mailing list
>> >> >> > >> > Pdns-users at mailman.powerdns.com
>> >> >> > >> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >> > >> >
>> >> >> > >> >
>> >> >> > >>
>> >> >> > >> --
>> >> >> > >> View this message in context:
>> >> >> > >>
>> http://old.nabble.com/PowerDNS-backend-tp34979116p34979413.html
>> >> >> > >> Sent from the PowerDNS mailing list archive at Nabble.com.
>> >> >> > >>
>> >> >> > >> _______________________________________________
>> >> >> > >> Pdns-users mailing list
>> >> >> > >> Pdns-users at mailman.powerdns.com
>> >> >> > >> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >> > >>
>> >> >> > >
>> >> >> > > _______________________________________________
>> >> >> > > Pdns-users mailing list
>> >> >> > > Pdns-users at mailman.powerdns.com
>> >> >> > > http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >> > >
>> >> >> > >
>> >> >> >
>> >> >> > --
>> >> >> > View this message in context:
>> >> >> http://old.nabble.com/PowerDNS-backend-tp34979116p34979453.html
>> >> >> > Sent from the PowerDNS mailing list archive at Nabble.com.
>> >> >> >
>> >> >> > _______________________________________________
>> >> >> > Pdns-users mailing list
>> >> >> > Pdns-users at mailman.powerdns.com
>> >> >> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >> >
>> >> >
>> >> >
>> >> >
>> >> >> _______________________________________________
>> >> >> Pdns-users mailing list
>> >> >> Pdns-users at mailman.powerdns.com
>> >> >> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > Pdns-users mailing list
>> >> > Pdns-users at mailman.powerdns.com
>> >> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >> >
>> >> >
>> >>
>> >> --
>> >> View this message in context:
>> >> http://old.nabble.com/PowerDNS-backend-tp34979116p34983132.html
>> >> Sent from the PowerDNS mailing list archive at Nabble.com.
>> >>
>> >> _______________________________________________
>> >> Pdns-users mailing list
>> >> Pdns-users at mailman.powerdns.com
>> >> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >>
>> >
>> >
>> > _______________________________________________
>> > Pdns-users mailing list
>> > Pdns-users at mailman.powerdns.com
>> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
>> >
>> >
>>
>> --
>> View this message in context:
>> http://old.nabble.com/PowerDNS-backend-tp34979116p34984061.html
>> Sent from the PowerDNS mailing list archive at Nabble.com.
>>
>> _______________________________________________
>> Pdns-users mailing list
>> Pdns-users at mailman.powerdns.com
>> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>>
>
>
> _______________________________________________
> Pdns-users mailing list
> Pdns-users at mailman.powerdns.com
> http://mailman.powerdns.com/mailman/listinfo/pdns-users
>
>
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