Re: [Pdns-users] MySQL backend and notify
On 12.08.2010 08:28 CE(S)T, bert hubert wrote: If configured with 'master' in the configuration, it will periodically retrieve a list of all SOA serial numbers, and determine which ones changed. Does anybody know what time interval this is? Seconds, minutes, hours? -- Yves Goergen LonelyPixel nospam.l...@unclassified.de Visit my web laboratory at http://beta.unclassified.de ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
Re: [Pdns-users] MySQL backend and notify
On Thu, Aug 12, 2010 at 08:55:17AM +0200, Yves Goergen wrote: On 12.08.2010 08:28 CE(S)T, bert hubert wrote: If configured with 'master' in the configuration, it will periodically retrieve a list of all SOA serial numbers, and determine which ones changed. Does anybody know what time interval this is? Seconds, minutes, hours? 1 minute. This is in fact the 'slave-cycle-interval' setting - the name is a bit confusing. Bert ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
Re: [Pdns-users] MySQL backend and notify
Yves Goergen wrote: Hello, I'm currently setting up my first PowerDNS server. It shall act as master for another DNS server. I'm going to use the gmysql backend. How will the pdns server know when I have changed the records in the database to send out notifications to the slaves? Will that work on a regular basis or will I have to start a separate process to tell pdns-server to rescan the database? We use this system now. Our method is this: * Two pdns servers, one primary and one secondary Both running mysql and gmysql back end * One machine running mysql with a web front end and PDNS Admin Console for PDNS * The PDNS console machine operates as the mysql master and both the master pdns and the slave pdns operate as slaves to this master database You will need to google: mysql master slave replication. We've been using some form of the above implementation for many years. Works great! Thanks, -- -- Steven G. Spencer, Network Administrator KSC Corporate - The Kelly Supply Family of Companies Office 308-382-8764 Ext. 231 Mobile 308-380-7957 ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
Re: [Pdns-users] MySQL backend and notify
On 12.08.2010 00:11 CE(S)T, LikeFiction wrote: If PowerDNS finds that a SOA record contains a higher value than this notified_serial, it knows it has to send out an update to the slaves. Yes, but the question is how does it find that? The database won't tell its connected clients (here the pdns-server) that some data has changed. Will pdsn query the database every few seconds or will I have to tell pdns with a special command that the serial (and thus the data) of a zone has changed? -- Yves Goergen LonelyPixel nospam.l...@unclassified.de Visit my web laboratory at http://beta.unclassified.de ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
Re: [Pdns-users] MySQL backend and notify
Hi, Yves Goergen schreef: On 12.08.2010 00:11 CE(S)T, LikeFiction wrote: If PowerDNS finds that a SOA record contains a higher value than this notified_serial, it knows it has to send out an update to the slaves. Yes, but the question is how does it find that? The database won't tell its connected clients (here the pdns-server) that some data has changed. Will pdsn query the database every few seconds or will I have to tell pdns with a special command that the serial (and thus the data) of a zone has changed? The slaves check on a regular interval whether the master has an updated serial in the SOA. If a higher serial exists this is detected and the zone is transferred to the slave. Regards, Ton ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
