Tomcat 7, 8, 9 Default Administrator Password

Tomcat 7,8,9 Default Administrator Password

By default you can see the below content in tomcat-users.xml file under (apache-tomcat-7.0.88\conf)

By default nothing is configured so add your own username and password for manager-gui roles to get the access for Manager App & Host Managers.

Why are we facing the issue: Because no default stuffs are added

<?xml version='1.0' encoding='utf-8'?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<tomcat-users>
<!--
NOTE: By default, no user is included in the "manager-gui" role required
to operate the "/manager/html" web application. If you wish to use this app,
you must define such a user - the username and password are arbitrary. It is
strongly recommended that you do NOT use one of the users in the commented out
section below since they are intended for use with the examples web
application.
-->
<!--
NOTE: The sample user and role entries below are intended for use with the
examples web application. They are wrapped in a comment and thus are ignored
when reading this file. If you wish to configure these users for use with the
examples web application, do not forget to remove the <!.. ..> that surrounds
them. You will also need to set the passwords to something appropriate.
-->
<!--
<role rolename="tomcat"/>
<role rolename="role1"/>
<user username="tomcat" password="<must-be-changed>" roles="tomcat"/>
<user username="both" password="<must-be-changed>" roles="tomcat,role1"/>
<user username="role1" password="<must-be-changed>" roles="role1"/>
-->
</tomcat-users>

The same you update with the username and password you want for manager-gui role in tomcat-users.xml file under conf folder:

This below block sets the username: root, password: root for apache tomcat manager gui.

Adding root/root as username and password

<?xml version='1.0' encoding='utf-8'?>
<tomcat-users>
	<role rolename="manager-gui"/>
	<user username="root" password="root" roles="manager-gui"/>
</tomcat-users>

Now you will be able to access http://localhost:8080/manager/html with username:root and password:root

Possible issues you may face

Changes are not reflecting ?

Just check tomcat-users section is outside of the commented one, it should not be between the <!– and –>, because it is commented, tomcat is not able to understand the changes you have done.

Restart the server if still not reflecting your changes.

Facing any other issue, feel free to mention in the below comments section, I will try to help you out!