Search Again: Re: Question about secondary zone updates... From: Len Conrad Date: Saturday, September 8, 2001 Time: 10:11:43 am >What parameter of a primary (or is it secondary) zone record determines = how >often the slave zone is updated? initial RFC=B4s use the last 1,2,3 fields in last 5 fields of the SOA rec= ord=20 to (xxx 1 2 3 xxx) to define slave behaviour, where the 1 field tells the= =20 slave how often to request the SOA record from the master to check for=20 incremented zone serial number. Polling was augmented with a later RFC which defined the DNS opcode for=20 NOTIFY, where the master will send a NOTIFY packet to all a zone=B4s NS=20 records, which then in turn so the SOA/serial number check. >What are the pros and cons of updating a secondary more often a slave pulling an SOA record from the master is not a burden. >, or why >wouldn't you want it to be somewhat instantaneous on a small number of >zones? the NOTIFY facility makes zone updates as close to instantaneous as possi= ble. Len __________________________________________________________________ Men & Mice: QuickDNS - DNS Expert - DNS Training - DNS Consulting DNS Classes: Denver Sep.20-21, NYC Sep. 27-28, Toronto Oct. 18,19 http://MenAndMice.com/DNS-training

Messages In This Thread: Question about secondary zone updates... by listaccount@starionline.com on Sep 8, 2001 at 9:58:30 am Re: Question about secondary zone updates... by Len Conrad on Sep 8, 2001 at 10:11:43 am Re: Question about secondary zone updates... by listaccount@starionline.com on Sep 8, 2001 at 10:24:19 am Re: Question about secondary zone updates... by Cali on Sep 8, 2001 at 10:45:25 am Re: Question about secondary zone updates... by Len Conrad on Sep 8, 2001 at 10:48:00 am Re: Question about secondary zone updates... by listaccount@starionline.com on Sep 8, 2001 at 10:57:17 am Re: Question about secondary zone updates... by Len Conrad on Sep 8, 2001 at 11:06:36 am Re: Question about secondary zone updates... by Cali on Sep 8, 2001 at 11:23:09 am Re: Question about secondary zone updates... by Cali on Sep 8, 2001 at 11:24:27 am Re: Question about secondary zone updates... by Mat Robertson on Sep 8, 2001 at 10:55:43 pm Re: Question about secondary zone updates... by Len Conrad on Sep 9, 2001 at 2:57:41 am Re: Question about secondary zone updates... by Cali on Sep 9, 2001 at 3:15:25 pm Re: Question about secondary zone updates... by Men & Mice Support on Sep 9, 2001 at 5:02:35 pm