title: How to configure Tomcat for request.getHeader("remote_user")?
body: <p>I would like information on request.getHeader("remote_user") that is within my code.  I'm a entry level java/jsp developer and currently when my program calls for the value of this request, it returns null.  It should capture the user's credentials.  I haven't found any definitive information on the web or in textbooks regarding this request.  Is this something that I configure in Tomcat, in my browser or in my code?  Unfortunately, I can't post the code but when I'm finish with my code, I send it to an SA that post it on to Tomcat and request.getHeader("remote_user") does return the proper value.  But when I run it in my test configuration, on my Tomcat, request.getHeader("remote_user") returns null.  This leads me to believe that this is Tomcat.  Any information or education you can provide is appreciated, thank you.  SOrry for being able to post code.</p>