nameserver and databases (e.g. mysql)
schumann at strato-rz.de
Thu Feb 16 07:42:43 UTC 2006
And again for the list:
Marten Lehmann schrieb:
> since everything is working in realtime nowadays I'm asking myself how I
> can update two or three nameservers at the same time.
> AXFR zone transfers are a bad idea, because you never know when the
> other nameserver will have a certain zone synchronized. Also, for a new
> zone to be synchronized, the second and third nameserver need a new zone
> entry in the named.conf and they need to be reloaded with rndc.
> Also, treating all nameservers as primary, thus creating zones and do
> the reload on each server is not reliable for a realtime interface,
> because one nameserver might be down and the zone creation couldn't be
> done. Or maybe several creations at the same time would interfere and
> create a broken named.conf (since always the whole file has to be
> My goal is to provide an interface to my customers where they can send
> the zone-data and immediately receive a response and can be sure, that
> the zone is created or updated on all three nameservers within seconds.
> I think the only way to achieve this is having a nameserver that uses a
> database instead of zonefiles and serves all requests directly from it.
> Thus the replication mechanisms of the database can keep track of
> updates being processed on all nameservers (e.g. one instance of mysql
> on each nameserver using mysql-replication).
> How could I do this with BIND? Actually, I just need an authoritative
> only nameserver, many of the features that BIND offers wouldn't be used
> in my purpose. I heard of the following three projects:
> MyDNS (http://mydns.bboy.net/)
> PowerDNS (http://www.powerdns.com/)
> Mysql-sdb (http://freshmeat.net/projects/bind-mysql/)
> I'm not sure which of the projects is the most sophisticated one and
> provides a similar reliability to BIND with zone files. Have you heard
> of them and can send comments? Do you know other stable projects? Do you
> have other solutions for my problem?
I have good experience with PowerDNS and some 100.000 zones with a mysql
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