Yes, PowerDNS and MaraDNS are good.

You can write some scripts with heartbeatd to change the responde of your dns... and change the TTL to 5 minutes or less.

--

Eduardo Schoedler

De: Pandu Poluan [mailto:pandu@poluan.info]
Enviada em: segunda-feira, 21 de novembro de 2011 15:39
Para: gentoo-server@lists.gentoo.org
Assunto: Re: [gentoo-server] Failover-capable DNS server?

On Nov 22, 2011 12:19 AM, "Alan Hodgson" <ahodgson@simkin.ca> wrote:
>
> On Monday 21 November 2011 01:52:09 Pandu Poluan wrote:
> > Anyone can recommend me a DNS server that has such capability? Or how
> > to implement this ability with maybe Python or (*shivers*) Perl?
>
> You can write a pipe backend for PowerDNS to do this sort of thing. The
> protocol to talk to PowerDNS is quite simple.
>

At first glance, I agree. Using PowerDNS instead of BIND also would introduce a necessary "genetic variety" to my nameservers.

One question, though: Its PowerDNS really good? Performance-wise, security-wise, or whatever-wise? Any 'gotcha's I need to be aware of?

Rgds,