confused with NS
Mark.Andrews at nominum.com
Mark.Andrews at nominum.com
Wed Apr 12 09:40:48 UTC 2000
>
> well ,then is it OK if i'm not going to include the MASTER in the NS lists
> ?
> so that clients queries are directed to the slaves instead of the master .
Yes. This configuration is know as "stealth master".
> my point here is to minimize the bandwidth usage of the MASTER ( for axfr
> to the slave only )
>
> MASTER <-------> SLAVES <----------> internet
>
> master-slave connection = axfr/notify to slave only
> slave-internet connection = dns queries
>
> so, is it safe not to include the master in the NS record or there's
> another way around this ?
Just leave the it out.
> i know that eventhough the master is in the NS lists , queries are still
> hit to the slaves because the slave will answer faster that the master
> with regards of the location and delay. but i want the client not the
> query the master even if the slaves timeout.
That is fine.
Mark
>
>
> On Wed, 12 Apr 2000 Mark.Andrews at nominum.com wrote:
>
> >
> > >
> > > hello bind,
> > > i have attached one of my zone file entry below , my question is :
> > > to whom the external request (i.e. YOU) query for reslution ?
> >
> > All of them. Apart from dynamic updates, clients do not care which
> > server it queries, all are equal. If there are a signicicant number
> > of queries to this zone then the clients will use which ever servers
> > answer fastest. For dynamic updates, clients will try the master
> > first provided the master is a listed server.
> >
> > The nameservers listed with the Internic should agree with the
> > nameservers list in the zone.
> >
> > Mark
> >
> > >
> > > ns2.pilnet.com ? or trinity.cebu.pilnet.com ?
> > >
> > > trinity.cebu.pilnet.com = MASTER
> > > ns1/ns2.pilnet.com = SLAVES
> > >
> > > INTERNIC nameservers entries :
> > > Primary = ns1.pilnet.com
> > > Secondary = ns2.pilnet.com
> > >
> > > * trinity.cebu.pilnet.com is defined in ns1/ns2.pilnet.com as MASTER and
> > > flag themselves (ns1/ns1.pilnet.com) as slaves.
> > >
> > > TOPOLOGY:
> > > trinity <-----> ns1/ns2.pilnet.com <----> internet
> > >
> > > or do i have to reverse the order of declaring the NS's ?
> > > say ,
> > > @ IN NS ns1.pilnet.com.
> > > IN NS ns2.pilnet.com.
> > > IN NS trinity.cebu.pilnet.com.
> > >
> > >
> > > -------- START -------
> > >
> > > $TTL 172800
> > > ; Authoritative data for hpscorp.net
> > >
> > > @ IN SOA
> > > trinity.cebu.pilnet.com. root.trinity.cebu.pilnet.com. (
> > > 2000041200
> > > 432000
> > > 7200
> > > 864000
> > > 86400 )
> > >
> > > @ IN NS trinity.cebu.pilnet.com.
> > > IN NS ns1.pilnet.com.
> > > IN NS ns2.pilnet.com.
> > > IN TXT "HPS Software and Communications"
> > > @ IN MX 10 hpscorp.net.
> > > IN MX 20 trinity.cebu.pilnet.com.
> > > IN MX 30 prophecy.cebu.pilnet.com.
> > > @ IN A 202.58.117.6
> > > www IN A 202.58.117.6
> > >
> > > ----------- END ------------
> > >
> > > --
> > > m i c h a e l v i n c e n t p o z o n
> > > :: mikevince at netexecutive.com ::
> > > ---------------------------------------------------------------
> > > HPS Software & Communication Corp. ICQ : 1413343
> > > Pilipino Internet Cebu office : (+63)(32) 3447847
> > > Systems/Network Administrator home : (+63)(32) 3446427
> > > - - - - - - - - - - - - - - - - - - cell : (+63) 917-3276966
> > > - - - - - - - - - - - - - - - - - http://mikevince.tripod.com
> > >
> > >
> > >
> > --
> > Mark Andrews, Nominum Inc. / Internet Software Consortium
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
> >
>
> --
> m i c h a e l v i n c e n t p o z o n
> :: mikevince at netexecutive.com ::
> ---------------------------------------------------------------
> HPS Software & Communication Corp. ICQ : 1413343
> Pilipino Internet Cebu office : (+63)(32) 3447847
> Systems/Network Administrator home : (+63)(32) 3446427
> - - - - - - - - - - - - - - - - - - cell : (+63) 917-3276966
> - - - - - - - - - - - - - - - - - http://mikevince.tripod.com
>
--
Mark Andrews, Nominum Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
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