title: Is it okay to modify the SQL Server Reporting Services' web.config file?
body: <p>I need to implement custom security for SQL Server Reporting Services. To do this, I would like to add some configuration into the web.config of the SSRS' Reports Server web application. </p>
  
  <p>My question is - is it safe to do this? Might my custom configuration be overrun by some SSRS process? Or by an automatic update to the SSRS?</p>