I have recently expanded my network and created 2 child domains. I run 2003 standard 32 bit in my parent domain (2003 functional level) 2003 standard 32bit in my first child domain (NY Site)and 08 server in my 2nd (MD Site). DNS is not working to my child domain site at all, when i ping hostname i get a ping request could not find.... when i ping by fqdn i get a response, the only work around I found for this was to add the dns suffix in the ip settings of the machine ur pinging from, and although it will get the job done, its not practical for my scenario. I've added the DNS at my child domains and they all show up under the domain's zone at my main site. I've checked the forwarders, root hints. The only thing that is working is DNS from my second site (MD) which is running 08 server to the parent domain, I've compared all settings and although it is a bit different they all seem to match. Any help will be appreciated.
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Apologies, I think I misread your question.
To set up DNS for a child domain, create a delegation record on the parent DNS server for the child DNS server. You should then create a secondary zone on the child DNS server that transfers the parent zone from the parent DNS server.
Is this how you have it configured at the moment?
When I created the domain it took me through creatng a reverse lookup zone. I didn't have to create a new delegation record as it was created for me, but yes i do have the delegation set up. On the child domains however, they don't show as delegation zones, they show up as the zone for that child domain.
Ok, so let's rehash the question so that I understand exactly.
You have parent.com and have added child1.parent.com and child2.parent.com - correct?
You cannot ping using NetBIOS name to machines outside the domain in which you are attempting to ping from?
Just to be sure you understand something - a domain is a security boundary and a DNS boundary. Pinging a machine (NetBIOS) in Parent.com from inside Parent.com should result in a success. Pinging a machine (NetBIOS) in child1 or child2 from Parent.com will not work because the machines in Parent.com only add their own suffix to the NetBIOS name. Pinging a machine (NetBIOS) from either child to the Parent.com should work properly because on the Properties of the IP stack on machines in the child domains, on the DNS tab there should be a checkmark in the box under Append Primary and connection-specific DNS suffixes that enables Append parent suffixes of the Primary DNS suffix.
In order to ping from Parent.com to either child, you need to use FQDN, add the child suffixes to the machines in Parent.com or use WINS with replication. WINS will only work if every single machine in all your domains is unique - there cannot be 2 NetBIOS names that are the same or it will fail.
Let me know if I understand you properly.
Root hints and Forwarders work with FQDN, yes. The fact that FQDN works for you proves this.
Your DNS server is Authoritative for the Forward Zones it hosts. If you ping using NetBIOS for a machine outside of the domain you are in, the client appends it's local suffix and then hits the DNS server. Since the machine you are pinging may be in the chidl domain then appending the parent suffix is not going to find it in that zone.
Pinging by FQDN forces the DNS server to check for conditional forwarder or a delegation record to forward the query to the proper DNS server (zone, if delegated).
I think it's possible to deliver addition DNS suffix using DHCP, I will check.
You can use Group Policy to add your DNS suffix.
http://support.microsoft.c
You can add this setting to each domain so that only the entries for the other domains are added.
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by: GunnerNPosted on 2009-10-29 at 10:51:50ID: 25696277
Hi, the easiest way around this is to set up conditional forwarding in your parent dns server. In the server properties, forwarders tab set up forwarding to the DNS server in the child domain so that any queries for child.domain.com get passed to the IP address of the DNS server for the child domain.
Hope this helps,
GunnerN