It is a sad day ..... DNS?DHCP update to DDNS

Hi,
It is a sad day as I have shutdown one more Netware box. (One more Netware server to go) I have moved my DHCP/DNS to SLES10sp3 with OES2sp3. DHCP is working and I can see the addresses in the lease file. DNS is also resolving. The only issue is that DHCP is not updating DDNS. I have tried various setting and configs but the updates do not go thru. Do I need to configure the TSIG and DNS keys. The error I see in then messages log file is "NOTIFY failed: Not authoratitive for zone-in (NOTAUTH) Any ideas
Regards
John

Originally Posted by John_Gill
Hi
DNS side
I have the "allow update" set to "any" on the domain zone and on the
in-addr.arpa zone.
DHCP
On the service object I have the following setting "ddns-hostname" value
"my_dns_server_name"
Then I have a zone called "my_domain.co.za" with IP of my dns server
On the "subnet" the "DNS Zone for Dynamic Update" is set to
"my_domain.co.za"
The "General" option for the server is set to the "service" and the settings
option is as follows:
authoritative - true
ddns-domainname -my_domain.co.za
ddns-hostname - my_dns_server_name
ddns-rev-domainname - in.addr.arpa
ddns-update-style - interim
ddns-updates - true
omapi-port -7911
one-lease-per-client - true
ping-check - true
update-optimization - false
client-updates -allow
I hope this makes sense.
Regards
John
Looks ok, besides the any statement for your DNS updates (as Massimo already pointed out).
Not sure what these do:
update-optimization - false
client-updates -allow
One thing I'm not seeing is if/that you have set the 'Always update' option in the DHCP pool... by default I think this is set to never.
As a heads up, especially if you have a smaller subnet or many clients, have a look at this TID that mentions how to avoid handing out duplicate assignments to one client doing PXE boot and OS boot as default start-up routine. : DHCP handing out 2 IP addresses when PXE booting
We usually also install the dhcp service on another OES server which will be dormant (service shutdown) but can quickly be configured as default DHCP server for configured subnets if the one running DHCP goes down for a longer period. This 'dormant' dhcp OES server also syncs (via rsync) the lease file from the active server to itself, once a day, so that the given leases are there and current if ever needed. It's simpler than doing a fail-over setup and also all the active leases can be found in one place. Not suitable for bigger setups, but for what we run it works quite nicely.
The TSIG key is nice and useful to be able to see the lease info in the DNS-DHCP management tool... quite simple to setup to (does require OES2 SP3 and up). See Viewing Dynamic Leases Under The DNS/DHCP Management Console From OES 2
As last 'heads up'... when coming from NetWare, one option that I overlooked the first two times was option 15.... use that to hand out the dns search suffix to your clients (if not already done so).
There where some things that worked nicer with DHCP on NetWare (clustering being one of them)... but once you get to know DHCP on OES2 it's quite decent and fast (quicker and cleaner than on NetWare from what I've seen). :)
Cheers,
Willem

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    >
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    Hi Ryan,
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    Now that was copied from this more comprehensive reference:
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    You may also find this article helpful:
    http://pondini.org/TM/14.html
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    http://roaringapps.com/apps:table
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