Domain overrides with openvpn

[jmarc]

Hello,

I have an ipsec tunnel between my office and a remote office.
Both offices use a different domain for now.
I've setup a domain override in my dns fw options for my lan.
ex: seconddomain.com > 192.168.2.4 which is the dns of the remote office.
How do i get users that connect to my openvpn to be able to reach the network on the remote office?

Thanks

[viragomann]

Provide them your internal DNS server.
But ensure that it also can resolve public names.

[jmarc]

They already have my internal dns server's address and it doesn't work.

lan ip: 192.168.17.0/24
vpn ip: 192.168.16.0/24
remote office ip: 192.168.2.0/24

I've added the remote office's ip range in the openvpn server settings. I can ping an ip over there, but i cant reach a web app with the fqdn.

[viragomann]

So the clients obviously can't resolve it. Consider that they have to use the FQDN, not only the host name, also the domain part.