conduit mLinux + mDot Box

Hi,
I have a conduit mLinux, I want to use a mDot Box with it, How can I do this? I use the conduit as a gateway that sends information to the Loriot server. I read that the gateway network name and pass phrase should be the same as mDot Box , but the “/var/config/lora/lora-network-server.conf” in gateway is Empty. What should I do?