is it honestly that big a deal - its more tedious to create test acounts when you have five or six roles that have to cordinated and tested rather than logging in as them

Hi!

I use dnn4 to  create a portal for my university. and then i put it on the interanet (my computer that is connected to the intranet by address of 192.168.20.215 ) of the university its address in interant is http://192.168.20.215/uir . Ok  every thing is good. Our university is an ISP but their servers are on Linux and i can not put my portal on server's of university. We solved this problem by this:

i put the portal on my computer and we used dns to assign http://ui.ac.ir/uir address to my computer. when we connect to the portal from university every thing is good but when we connect to the portal from out of the university we have a problem. When we click on Login link, we redirect to http://192.168.20.215/uir/%d9%88%d8%b1%d9%88%d8%af%d8%a8%d9%87%d8%b3%d8%a7%db%8c%d8%aa/tabid/131/Default.aspx rather than http://ui.ac.ir/uir/%d9%88%d8%b1%d9%88%d8%af%d8%a8%d9%87%d8%b3%d8%a7%db%8c%d8%aa/tabid/131/Default.aspx and then we got an error that say this page can not be find.

please help me.

Just do this.  On your development machine make it so Unauthenticate user can edit pages and edit module content. Then you can test the admin functionality of the modules you are building.  I would suggest however before releasing the module you create the groups you need and test the module using real roles how it will be setup in production (staging site).

If you want to test different user scenerios, then the only real options are to use a module like the UserSwitcher and the Rember Me  feature of DNN.