From RHEL to CentOS BIND 9
Chris Buxton
cbuxton at menandmice.com
Tue Dec 4 16:53:11 UTC 2007
Since they're basically the same operating system (but possibly
different versions - you didn't say), my guess would be to start by
comparing named.conf on each system. They should be similar at the
beginning, but then your existing (old) server will have zone
statements (possibly in one or more included files). You can probably
just copy over named.conf and all of its includes to the new master
server. Then copy over the zone files.
If you're using the chroot environment package on one server but not
the other, be aware that the paths will be a bit different. Without
the chroot environment:
/etc/named.conf
/etc/rndc.{conf,key}
/var/named/
With the chroot environment:
/var/named/chroot/etc/named.conf
/var/named/chroot/etc/rndc.{conf,key}
/var/named/chroot/var/named/
As you can see, aside from the chroot environment's path, the paths
are the same. [N.B.: You probably don't need to copy over the rndc
configuration, since it's usually brought into named.conf using an
include.]
As for setting up a slave, well, you'll need a similar named.conf as
on the master (but with a different rndc configuration). Just change
all the zone types from master to slave, and add a masters line to
each one pointing to the new master server. Oh, and you may want to
adjust the path of your zone files, to put them in a slaves directory;
wherever they're going, make sure the named user can write to the
directory. (But then, that's generally true of a master server these
days, too.)
If you want to avoid some of the hassle, there are software solutions
that will make this easier. Men & Mice makes one such. Feel free to
contact me off-list if you're interested.
Chris Buxton
Professional Services
Men & Mice
Address: Noatun 17, IS-105, Reykjavik, Iceland
Phone: +354 412 1500
Email: cbuxton at menandmice.com
www.menandmice.com
Men & Mice
We bring control and flexibility to network management
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On Dec 4, 2007, at 8:18 AM, isplist at logicore.net wrote:
> I need to move my RHEL BIND DNS over to a CentOS BIND 9 server along
> with
> building a secondary. Both new machines are RPM installs so no source.
>
> The machine are ready to go but I can't figure out how to migrate
> the records
> over to the new machine along with creating a secondary from the
> first machine
> once it's done.
>
> I've looked everywhere I can and find tons of documentation but of
> course,
> nothing which matches what I'm doing. Can someone lend me a hand
> with this and
> give me some input on what I need to do next.
>
> Thanks.
>
> Mike
>
>
>
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