Search Again: Re: Question about secondary zone updates... From: Cali Date: Saturday, September 8, 2001 Time: 10:45:25 am the REFRESH value is the one that tells your secondary server how often to perform the updates. > From: <listaccount@starionline.com> > Reply-To: "QuickDNS Talk" <quickdns-talk@lists.menandmice.com> > Date: Sat, 08 Sep 2001 12:23:55 -0500 > To: QuickDNS Talk <quickdns-talk@lists.menandmice.com> > Subject: Re: Question about secondary zone updates... >=20 > Okay, a little more technical than I expected, but I get the general idea= . > So the question now becomes; >=20 > If indeed QDNS uses NOTIFY to "alert" the slave to new info, then why doe= s > my slave server seem to not be updating quickly (not even after several > hours). Do I perhaps have a configuration problem? >=20 > Jeff J. > Starion Systems >=20 >>> What parameter of a primary (or is it secondary) zone record determines= how >>> often the slave zone is updated? >>=20 >> initial RFC=B4s use the last 1,2,3 fields in last 5 fields of the SOA reco= rd >> to (xxx 1 2 3 xxx) to define slave behaviour, where the 1 field tells th= e >> slave how often to request the SOA record from the master to check for >> incremented zone serial number. >>=20 >> Polling was augmented with a later RFC which defined the DNS opcode for >> NOTIFY, where the master will send a NOTIFY packet to all a zone=B4s NS >> records, which then in turn so the SOA/serial number check. >>=20 >>> What are the pros and cons of updating a secondary more often >>=20 >> a slave pulling an SOA record from the master is not a burden. >>=20 >>> , or why >>> wouldn't you want it to be somewhat instantaneous on a small number of >>> zones? >>=20 >> the NOTIFY facility makes zone updates as close to instantaneous as poss= ible. >>=20 >> Len >> __________________________________________________________________ >>=20 >> 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 >>=20 >=20 >=20

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