I have a situation where I need to rewrite, and display in the address bar, a diffrent URL than is acutally being accessed. I have a Linux/Apache/php/MySQL platform. I have *domainA.com* and *domainB.com* running on the machine, with an application installed and running under *domainA.com*. There is a subdomain named *app.domainA.com* running on *domainA.com* that points to a subirectory, *domainA.com/app*. I need to have *domainB.com* be able to run *app.domainA.com* and look like it is running *app.domainB.com* in the address bar and all other references to the browser window/object. From what I have read and understand, this is possible, but I haven't discovered the configurations to make it work. Can some of you Linux/Apache gurus help unscramble my eggs? Yes, my brain is scrambled mush over this seemingly simple configuration. Thanks, Ron D.