[Samba] Best Practices: Samba AD with multiple DCs/BIND9 DNS servers

PRIA IT it at rockagencyllc.com
Sun Oct 9 04:18:27 UTC 2016

Here's a more detailed overview, both DCs are identical:

itwerks at jaaadc01:~$ uname -a
Linux jaaadc01 3.13.0-96-generic #143-Ubuntu SMP Mon Aug 29 20:15:20 UTC
2016 x86_64 x86_64 x86_64 GNU/Linux

itwerks at jaaadc01:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.5 LTS
Release: 14.04
Codename: trusty

named -V
BIND 9.10.4-P1 <id:adfc588>
running on Linux x86_64 3.13.0-96-generic #143-Ubuntu SMP Mon Aug 29
20:15:20 UTC 2016
built by make with '--prefix=/usr' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--sysconfdir=/etc/bind' '--localstatedir=/var'
'--enable-threads' '--enable-largefile' '--with-libtool' '--enable-shared'
'--enable-static' '--without-openssl' '--with-gssapi=/usr/include/gssapi'
'--with-dlopen=yes' '--with-gnu-ld' '--with-atf=no' '--enable-ipv6'
'--enable-filter-aaaa' 'CFLAGS=-fno-strict-aliasing -DDIG_SIGCHASE -O2'
compiled by GCC 4.8.4

I just took a look at both DNS servers in RSAT's DNS snap-in, jaadc01 has
an entry I added manually the other day for jaavm01.  jaaadc02 has no entry
for that machine.

Let me know if I can provide any other information.



On Sat, Oct 8, 2016 at 6:48 PM, PRIA IT <it at rockagencyllc.com> wrote:

> Both DCs are Ubuntu-server 14.04 64bit.
> JS
> On Oct 8, 2016 12:41 PM, "Rowland Penny via samba" <samba at lists.samba.org>
> wrote:
>> On Sat, 8 Oct 2016 12:31:33 -0400
>> Jason Secord via samba <samba at lists.samba.org> wrote:
>> > Rowland: I set up all domain controllers bind installs the same,
>> > followed the wiki.
>> >
>> > Marc: that's the piece of information i needed... Now, I'll double
>> > check this, but the other night I created a new record using the DNS
>> > snap-in from RSAT on DC1.  After a few minutes i checked DC2's DNS
>> > zones and the record was not visible.  I checked that drs showrepl
>> > was reporting successful replication, it was.  Checked my sysvol
>> > rsync cron logs and they looked fine.
>> >
>> > How often does the DNS propagation occur?
>> >
>> > Regards,
>> >
>> > JS
>> What OS is DC1 ?
>> Same goes for DC2
>> Rowland
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