I set up Apache Tomcat/9.0.0.M4 on Amazon Linux EC2 Instance. I completed to edit conf/tomcat-users.xml like this.
<role rolename="manager-gui"/>
<role rolename="manager-status"/>
<role rolename="admin"/>
<user username="tomcat" password="tomcat" roles="manager-gui,manager-status"/>
and then, I restarted Tomcat with ./shutdown.sh and ./startup.sh I tried to log-in, but Tomcat web page never ask ID/Password of manager. It only show me this 403 error page like this.
How to find log-in message box?