[Samba] reslov.conf on two DC's

Bob of Donelson Trophy bob at donelsontrophy.net
Thu Mar 12 07:30:58 MDT 2015


As a general user, I am going to adopt this as basic practice from now
on. And yes, please keep the wiki current. 

(From all the reading I have done, this "criss-cross" makes sense in a
two DC environment. For three or more DC's, then "circular." Being a
novice, I asked the experts here for their thoughts. Thanks.) 



Bob Wooden of Donelson Trophy

615.885.2846 (main)
www.donelsontrophy.com [3]

"Everyone deserves an award!!"

On 2015-03-12 07:47, Tim wrote: 

> So in my ears it makes sense to add this to the wiki for joining a domain as a DC. I will add it soon.
> Am 12. März 2015 11:00:21 MEZ, schrieb "L.P.H. van Belle" <belle at bazuin.nl>:
> a nice example about dns islanding. http://retrohack.com/a-word-or-two-about-dns-islanding/ [1] and with only 2 dc's setup the resolv.confs like : DC01 Primary DNS Secondary DNS DC02 Primary DNS Secondary DNS http://technet.microsoft.com/en-us/library/ff807362%28v=ws.10%29.aspx [2] says: If the loopback IP address is the first entry in the list of DNS servers, Active Directory might be unable to find its replication partners. but this is manly MS DNS based, since there was a bug in the MS DNS server, concerning islanding.. Louis -----Oorspronkelijk bericht----- Van: rowlandpenny at googlemail.com [mailto:samba-bounces at lists.samba.org] Namens Rowland Penny Verzonden: woensdag 11 maart 2015 22:03 Aan: samba at lists.samba.org Onderwerp: Re: [Samba] reslov.conf on two DC's On 11/03/15 20:07, Marc Muehlfeld wrote: Hello Rowland, Am 11.03.2015 um 19:52 schrieb Rowland Penny: I tried that, pointing each DC to the other and my DNS
 resolving slowed 

>> to a crawl, hung for short periods and generally became
 unresponsive. I 

>> just have: search <dns domain> nameserver
> The only problem that can appear is DNS islanding. Do you use the the internal DNS or BIND? Where did DNS responding slowed down? On the DCs? Or DNS in general? Regards, Marc
 I use bind9 (I think that there are too many problems with the internal
server to make it usable) When I set search example.com nameserver <the
other DC> on both the DCs, DNS became virtually unusable everywhere, I
tried various other permutations, but the only one that works for me
(YMMV) on the DCs is search example.com nameserver Rowland --
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[1] http://retrohack.com/a-word-or-two-about-dns-islanding/
[3] http://www.donelsontrophy.com
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