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DNS Between DMZ and an Internal Private network

By brucecmc ·
Hi folks, new to the forum. first post.

I am having a bit of a delima. I'm attempting to join a host in my DMZ (192.168.1.x) to a domain on my internal private (10.10.10.x) My initial steps were to build out the machines, 2 of which are in my DMZ and the remaining in my private internal address space (including the DC/DNS server)

I have opened what i think to be the correct ports between the the DMZ servers to internal (53, 389, 88, 445, 135). I have a static address to translate the DMZ address to an internal address. The host in the dmz is using the nat'd addy as primary dns (all internal, active directory integrated only DNS).

I executed an ipconfig/dns register from the dmz machine with no errors.

However, when i attempt to join the domain, i am regurned the following error:

DNS was successfully queried for the service location (SRV) resource record used to locate a domain controller for domain <domaime>:

The query was for the SRV record for _ldap._tcp.dc._msdcs.<domain name>

The following domain controllers were identified by the query:

<domain controller name>

Common causes of this error include:

- Host (A) records that map the name of the domain controller to its IP addresses are missing or contain incorrect addresses.

- Domain controllers registered in DNS are not connected to the network or are not running.

the DC is connected and there is a A record for the 10.10.10.x addy. a

and now i'm stuck? any thoughts would be appreciated.

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