Trying to configure IM_ DataCenter on RedHat Server x64 which only run in text mode. (no xterm is allowed). Getting prompt message saying that IM_DC requires settings "Https://localhost:8182/setting.html" 

The message comes up when no admin password is set, as a security measure. You'll need to set the password via the command-line, like this: 

sudo /usr/local/imdc/sbin/imdc stop
sudo /usr/local/imdc/sbin/imdc --password=
sudo /usr/local/imdc/sbin/imdc start

With the password set, you'll be able to reach the web interface from a different machine and finish the remaining configuration..