Can a RODC also be a DHCP ?
Sounds like a no-brainer, but there is catch. I installed DHCP role on my Server Core that I had previously set up as Read-only Domain Controller, using this command.
start /w ocsetup DHCPServerCore
And then I went ahead and set the service configuration to “auto” with this command,
sc config dhcpserver start= auto(note the space between the equal sign and auto)
And then finally when I tried to start the DHCP service with the following command, it failed with these errors.
net start dhcpserverA system error has occured
System error 50 has occured
The request is not supported
So the catch was, that since RODC can’t write back to the AD to create the needed DHCP security groups i.e DHCP Administrators and DHCP Users, the service would fail.
After creating those domain local security groups on another Windows Server 2008 RWDC, the service does run successfully and you can manage the DHCP Server (that is running on Server Core) from another server using RSAT.
Hey,
Just wondering if this scenario is where you are setting up a single DHCP server in the domain or adding an additional, as i would assume these groups would already exist if there were pre-existing DHCP servers in the domain?
thanks.
You are correct Dave. This would be for introducing first DHCP server in your environment.
Thanks,
Guys,
I’m having 1 DC with 4 RODC’s.
And i got the same error on 1 of my RODC’s though i’m already running 1 dhcp on my DC.
Do the pertinent Groups exist in your AD ?
It is however recommended to at least have two RWDC in your environment for redundancy.s