Thanks David, I had forgotten the web.xml as you suggested. I have now added 
this so my web.xml is as shown below, and I get the prompt but the userid I'm 
using 'test' (passwd: test) isn't going through.
Hope this isn't a daft question, but do I need to add code to the servlet to 
get this to work? Thanks for your help.

Ed.


<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee";
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";
    version="2.4">

    <display-name>Hello, World Application</display-name>
    <description>
  This is a simple web application with a source code organization
  based on the recommendations of the Application Developer's Guide.
    </description>

    <servlet>
        <servlet-name>HelloServlet</servlet-name>
        <servlet-class>mypackage.Hello</servlet-class>
    </servlet>

    <servlet-mapping>
        <servlet-name>HelloServlet</servlet-name>
        <url-pattern>/hello</url-pattern>
    </servlet-mapping>

  <resource-env-ref>
    <description>
      Link to the UserDatabase instance from which we request lists of
      defined role names.  Typically, this will be connected to the global
      user database with a ResourceLink element in server.xml or the context
      configuration file for the Manager web application.
    </description>
    <resource-env-ref-name>users</resource-env-ref-name>
    <resource-env-ref-type>
      org.apache.catalina.UserDatabase
    </resource-env-ref-type>
  </resource-env-ref>

  <security-constraint>
    <web-resource-collection>
      <web-resource-name>test</web-resource-name>
      <url-pattern>/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
       <!-- NOTE:  This role is not present in the default users file -->
       <role-name>test</role-name>
    </auth-constraint>
  </security-constraint>

  <!-- Define the Login Configuration for this Application -->
  <login-config>
    <auth-method>BASIC</auth-method>
    <realm-name>Tomcat Sample Application</realm-name>
  </login-config>

  <!-- Security roles referenced by this web application -->
  <security-role>
    <description>
      The role that is required to log in to the test application
    </description>
    <role-name>test</role-name>
  </security-role>

</web-app>


and /tmp/tomcatusers.xml is:

<?xml version='1.0' encoding='utf-8'?>
<tomcat-users>
  <role rolename="tomcat"/>
  <role rolename="role1"/>
  <role rolename="manager"/>
  <role rolename="admin"/>
  <user username="tomcat" password="tomcat" roles="tomcat"/>
  <user username="both" password="tomcat" roles="tomcat,role1"/>
  <user username="test" password="test" roles="test"/>
  <user username="admin" password="tomcat" roles="admin"/>
</tomcat-users>


> 
> whats in your web.xml ?
> 
> is your app forcing a login ?
> 
> all the realm provides is a system to do authentication
> unless you are triggering it, it isn't used....
> 
> 
> 
> On Wed, 2008-03-12 at 10:36 +0000, Edward Quick wrote:
> > Hi,
> > 
> > I would like to specify my own tomcat-users.xml for my webapp to use (not 
> > the server's main one in  conf/tomcat-user.xml).
> > 
> > I tried the following configuration in my webapp's context.xml file but 
> > unfortunately when I went to the URL, I wasn't even prompted for a logon:
> > 
> > <Context path="/sample" debug="0" privileged="true">
> >         <Realm className="org.apache.catalina.realm.MemoryRealm" 
> > path="/tmp/tomcatusers.xml" />
> > </Context>
> > 
> > Could someone tell me if this is possible, and if so what I need to do to 
> > set up the login prompt please?
> > 
> > Thanks,
> > 
> > Ed.
> > 
> > 
> > 
> > _________________________________________________________________
> > Telly addicts unite!
> > http://www.searchgamesbox.com/tvtown.shtml
> 
> 
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