Fixed for readability. :-\
On Nov 4, 2009, at 5:03 PM, Jeff C. Anderson wrote:
On 11/4/09 1:24 PM, "Alexander Bassi" <email@hidden> wrote:
On Nov 4, 2009, at 1:02 PM, Jeff C. Anderson wrote:
We need to move our current/active DHCP service from its present
MacOSX 10.5.8 Xserve to different physical Xserve, Also running
MacOS Server 10.5.8. Exporting and importing the DHCP service
settings to preserve all of the subnets is quite straightforward.
However, does anyone know if it is possible to actually move the
existing client database, so that client machines will not acquire
totally new addresses...which I suspect will play havoc with ARD
computer lists. Even the location of the client database remains
a mystery to us so far...
Thanks for any suggestions...
Jeff A
Old DHCP server = DHCP(a);
New DHCP server = DHCP(b);
"Client database" - as in, the DHCP leases the DHCP service compares to it's clients' MAC addresses?
Yes.
Is DHCP(b) also now hosting DNS? It DHCP(b) acting as the new router/gateway? If any of the following information changes, you will have to renew each DHCP lease for all clients: Subnet, Router, Search Domains, DNS Servers, and/or LDAP info. If it's identical, each client should ask the network for a new address, to which, the new DHCP server will provide the same info.
Yes, DNS is provided by DHCP(b) and will remain the same. No changes will be made to subnet, router, search domains, dns servers or LDAP. A change will immediately be made to the router’s bootp directive, changing it from the IP address of DHCP(a) to DHCP(b).
DORA:
* Discover - "Is there a DHCP server out there?"
* Offer - [DHCP(b)] Why yes, here's an IP address and some other info.
* Respond - "Just to confirm, *this* is the info you're providing me, right?"
* Acknowledge - [DHCP(b)] Yes. Don't ask me again for n hours. (where n represents the time-to-live on the DHCP lease)
BTW, what's happening to DHCP(a)?
Will continue running its “other” services...just not DHCP.
Looks like you should be fine. :-D
.......................................................... Jeff C. Anderson
Technology Director
Pella Community School District
Pella, IA USA
Telephone (School Administration)
(641) 628-1111
Telephone (Pella Middle School)
(641) 628-4784
Telephone (Pella High School)
(641) 628-3870
Mobile Telephone
(641) 780-0252
Email
email@hidden
email@hidden
..........................................................
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