Web.config File - ASP.NET

ASP.NET Web.config allows you to define or revise the configuration settings at the time of developing the application or at the time of deployment or even after deployment. The following are brief points that can be understood about the Web.config file:

• Web.config files are stored in XML format which makes us easier to work with.
• You can have any number of Web.config files for an application. Each Web.config applies settings to its own directory and all the child directories below it.
• All the Web.config files inherit the root Web.config file available at the following location systemroot\Microsoft.NET\Framework\versionNumber\CONFIG\Web.config location
• IIS is configured in such a way that it prevents the Web.config file access from the browser.
• The changes in Web.config don’t require the reboot of the web server.