Please note that pdns-server != pdns-recursor. If it is at all possible for you you should consider separating recursive and authoritative DNS service to different IP adresses. -> http://cr.yp.to/djbdns/separation.html
As for the caches, yes PowerDNS server has two caches relevant to your backends query load, packet and query cache. -> http://doc.powerdns.com/performance-settings.html PowerDNS recursor is another process and has its own recursive cache. You can totally run PowerDNS server without specifying a recursor (recursor=). For example for a standalone Mail-/Webserver it makes sense to have your recursive Nameserver, say PowerDNS recursor, or BIND9, bind to 127.0.0.1 and use that in your resolv.conf and have PowerDNS server listen for authoritative queries on your 'official' internet facing address. That way you don't burden PowerDNS server with the additonal load of your servers recursive queries. Btw. PowerDNS recursor running standalone works like a charm for many large mailservers as serveral people in #powerdns (IRCnet) confirmed. Stefan -- <RoMo> ich war x jahre emacs nutzer <RoMo> UND BIN STOLZ NUN EIN VIM BENUTZER ZU SEIN [tm] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
