All fields are separated by \t (tab) indeed. Also you are supposed to send SOA for the domain as well.
Aki Tuomi
On Fri, Aug 16, 2013 at 08:46:45PM -0600, Dan Campbell wrote:
> I'll have look at my pipe back end source code tomorrow to be sure, but two
> thing s come to mind - the fields in the "DATA" response have to be separated
> by single tabs, not spaces, and I believe the "-1" on the response is
> actually supposed to match the I'd field in the query.
>
> It's also possible that the pipe backend will not get any other queries if it
> does not respond correctly to an SOA query.
>
> --
> Dan Campbell
>
> On Aug 16, 2013, at 5:39 PM, p...@nodice.us wrote:
>
> > Hello everyone. I'm having a problem using the Pipe backend.
> >
> > What I'm trying to do is have all queries that come in get answered with a
> > specific ip. To do this, I'm trying out the Pipe backend using a basic perl
> > script.
> >
> > pdns.conf (authritative server version 3.3):
> > launch=pipe
> > pipe-command=/etc/pdns/example.pl
> > local-address=127.0.0.1
> > default-soa-name=billy.com
> >
> > -----------------------------
> > perl script:
> > #!/usr/bin/perl
> >
> > use warnings;
> > use strict;
> >
> > $|=1; # no buffering
> >
> > my $line=<>;
> > chomp($line);
> >
> > unless($line eq "HELO\t1") {
> > print "FAIL\n";
> > print STDERR "Received '$line'\n";
> > <>;
> > exit;
> > }
> > print "OK Pipe backend firing up\n"; # print our banner
> >
> > while(<>)
> > {
> > print STDERR "$$ Received: $_";
> > chomp();
> > my @arr=split(/\t/);
> > if(@arr<6) {
> > print "LOG PowerDNS sent unparseable line\n";
> > print "FAIL\n";
> > next;
> > }
> >
> > my ($type,$qname,$qclass,$qtype,$id,$ip)=split(/\t/);
> >
> > if ($qtype eq "A" || $qtype eq "ANY") {
> > print STDERR "$$ Sent A records\n";
> > print "DATA $qname $qclass A 3600 -1
> > 192.168.1.69\n";
> > }
> >
> > print STDERR "$$ End of data\n";
> > print "END\n";
> > }
> >
> >
> > -----------------------------
> > pdns monitor:
> > Aug 16 17:30:48 Remote 127.0.0.1 wants 'billy.com|A', do = 0, bufsize =
> > 512: packetcache MISS
> > 29715 Received: Q billy.com IN SOA -1 127.0.0.1
> > 29715 End of data
> >
> > Looks like it queries for an SOA record first, doesn't find anything and
> > just returns an empty response. I tried adding default-soa-name in the
> > conf, but that doesn't seem to work as I anticipated either.
> >
> > Any help would be appreciated.
> >
> > Thanks,
> >
> > Billy
> >
> > _______________________________________________
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> > Pdns-users@mailman.powerdns.com
> > http://mailman.powerdns.com/mailman/listinfo/pdns-users
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