title: Using ELMAH inside my asp.net mvc 4 & MVC5 web application
body: <p>I have two asp.net mvc web applications; asp.net mvc4 and asp.net mvc5 , they are both deployed under iis7 on two separate VMs.</p>
  
  <p>now i am currently facing problems when un-handled exceptions are raised,,, because users will be re-directed to the Error view inside the shared folder under the view section. and i am unable to know exactly the exception details..</p>
  
  <p>so i have read about using the ELMAH tool which will automatically logs all the UN-handled exceptions. but my question is that what are the steps that i need to follow to configure the tool inside myC application ? </p>
  
  <p>second question; will ELMAH works on asp.net vmc4 and asp.net mvc5 in the same way?</p>
  
  <p>Third question. now i have custom error set to <code>&lt;customErrors mode="RemoteOnly" /&gt;</code> inside my live asp.net mvc web application, since i do not want end users to be exposed to the technical details about any exception, so when using elmah should i set the custom error to be no ?
  Thanks</p>