401 Unauthorized error while logging in Manager-App of Tomcat

Question

I am trying to log in to the Manager App in Tomcat 7.0.22 for Mac OS X 10.7. Here is the error I am getting: http://f.cl.ly/items/421q1K3f1i0X1H1M181v/so.tiff

Answer 1

If you are at Tomcat 8, you maybe missing the following. After updating the Realms and tomcat-users.xml, you also need to edit the apps' context.xml.

By default, newer versions of Tomcat restrict access to the Manager and Host Manager apps to connections coming from the server itself. Since we are installing on a remote machine, you will probably want to remove or alter this restriction. To change the IP address restrictions on these, open the appropriate context.xml files.

For Manager app:

/webapps/manager/META-INF/context.xml

For Host-Manager app:

/opt/tomcat/webapps/host-manager/META-INF/context.xml

Comment out the following section for Valve as follows-

You should be allset after this.