How do you deal with connection strings when deploying an ASP.NET site?

Question

Right now our test and production databases are on the same server, but with different names. Deploying has meant editing Web.config to change all the connection strings for th

Answer 1

I usually have three separate web configs: one for my development machine, one for QA, and one for production. The development one connects to my local SQL database (which is firewalled from outside) and it is the default web.config. The others are named web-prod.config and web-qa.config. After publishing I delete the two that I don't need and rename the correct one to web.config. If I forget, the app breaks the first time it attempts to access the database, since the default config references one it can't get to.

Since IIS refuses to serve up a file named .config, I make sure they all end in .config instead of say web.config-prod or web.config-qa.