[Ext] Re: moving subnet to another server
Jim Glassford
jmglass at iup.edu
Fri Jan 9 19:31:39 UTC 2015
Hi,
There was similar query not to long ago on the list but I will be darned
if I can find it. I seem to remember step by step instructions on
completing a move to a new server, maybe I was dreaming. :-(
This was as close as I found which may be helpful, move the leases file
to the new server and verify if version differences.
<https://lists.isc.org/pipermail/dhcp-users/2006-October/002025.html>
best!
jim
On 1/9/2015 2:12 PM, Dana Huggard wrote:
> Thanks Patrick. I don't know how to handle that. Not sure how smart
> dhcp is to detect such a condition or how long it would take for
> things to sort itself out.
> The default-lease-time in the subnet declaration is 600. Is there a
> preferred way to handle this?
>
> On Fri, Jan 9, 2015 at 10:59 AM, Patrick Trapp <ptrapp at nex-tech.com
> <mailto:ptrapp at nex-tech.com>> wrote:
>
> How are you planning to prevent the new server from handing out
> addresses already assigned by the old server?
>
> ------------------------------------------------------------------------
> *From:* dhcp-users-bounces at lists.isc.org
> <mailto:dhcp-users-bounces at lists.isc.org>
> [dhcp-users-bounces at lists.isc.org
> <mailto:dhcp-users-bounces at lists.isc.org>] on behalf of Dana
> Huggard [dana.huggard at cohodata.com <mailto:dana.huggard at cohodata.com>]
> *Sent:* Friday, January 09, 2015 12:33 PM
> *To:* dhcp-users at lists.isc.org <mailto:dhcp-users at lists.isc.org>
> *Subject:* moving subnet to another server
>
> Hi.
>
> I'm planning on moving a subnet over to another server and am not
> sure what kind of devil hides in the details.
>
> The subnet is 10.x.x.0/18 and it is very busy. Its a subnet
> devoted to a test harness of servers that go up and down a lot
> putting a big load on dhcpd and named (using ddns).
>
> Along with the dhcpd change the new dhcp server will also serve as
> a dns server for a new domain.
>
> To implement the move I have a new dhcp server I plan to remove
> the subnet declaration from dhcpd.conf off the old server, add it
> to the new server, then restart dhcpd on the old server, and start
> dhcpd on the new server.
>
> What I am wondering about is what to expect for the behaviour of
> the dhcp clients. How disruptive might this be?
>
> Thank you.
>
>
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>
>
> --
> Dana Huggard
> System Administrator
> 778.724.0761 ext 117
> dana.huggard at cohodata.com <mailto:dana.huggard at cohodata.com>
>
>
>
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