To change the way the domain controller is found, and other attributes Steps On the Domains page, in the list select the domain you want to change and click Edit. In the IWA Domain Details section, select how to locate the domain controller: Auto-detect using DNS DC name or IP addressIf the domain controller is specified by name or IP address, you can also specify backup domain controllers in a comma separated list, no spaces. You can also change the Aliasing setting. See Unknown users and the ‘alias’option. Click Apply.