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Necrotrophic

Member

Registered: 2010-02-25

Posts: 8

Tomcat 8 will not let me use web manager

I have a newly installed tomcat8 I have confirmed it is running.

When I try to access the web manager: http://localhost:8080/manager/html

I get prompted with a user/pw. However the credentials I've setup dont work, even after a reboot.

I feel like Ive done everything the internet said to do. Is there a bug in tomcat8 where you no matter what you put in the user xml it has no effect?

Here is what my xml says:

<?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 xmlns="http://tomcat.apache.org/xml"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://tomcat.apache.org/xml tomcat-users.xsd"
              version="1.0">
<!--
  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"/>

  <role rolename="manager-gui"/>
<user username="joe1" password="joe1" roles="manager-gui"/>
  <user username="tomcat" password="pw12345" roles="tomcat"/>

  <user username="both" password="pw12345" roles="tomcat,role1"/>


</tomcat-users>

server xml: (ive switched /conf and the actual path to my users.xml but it never works either way)

<?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.
-->
<!-- Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" at this level.
     Documentation at /docs/config/server.html
 -->
<Server port="8005" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <!-- Security listener. Documentation at /docs/config/listeners.html
  <Listener className="org.apache.catalina.security.SecurityListener" />
  -->
  <!--APR library loader. Documentation at /docs/apr.html -->
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <!-- Global JNDI resources
       Documentation at /docs/jndi-resources-howto.html
  -->
  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
              description="User database that can be updated and saved"
              factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
              pathname="/conf/tomcat-users.xml" />
  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" Note:  A "Service" is not itself a "Container",
       so you may not define subcomponents such as "Valves" at this level.
       Documentation at /docs/config/service.html
   -->
  <Service name="Catalina">

    <!--The connectors can use a shared executor, you can define one or more named thread pools-->
    <!--
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
        maxThreads="150" minSpareThreads="4"/>
    -->


    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned. Documentation at :
         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
         Java AJP  Connector: /docs/config/ajp.html
         APR (HTTP/AJP) Connector: /docs/apr.html
         Define a non-SSL/TLS HTTP/1.1 Connector on port 8080
    -->
    <Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <!-- A "Connector" using the shared thread pool-->
    <!--
    <Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    -->
    <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443
         This connector uses the NIO implementation that requires the JSSE
         style configuration. When using the APR/native implementation, the
         OpenSSL style configuration is required as described in the APR/native
         documentation -->
    <!--
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol"
               maxThreads="150" SSLEnabled="true" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" />
    -->

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />


    <!-- An Engine represents the entry point (within Catalina) that processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes them
         on to the appropriate Host (virtual host).
         Documentation at /docs/config/engine.html -->

    <!-- You should set jvmRoute to support load-balancing via AJP ie :
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
    -->
    <Engine name="Catalina" defaultHost="localhost">

      <!--For clustering, please take a look at documentation at:
          /docs/cluster-howto.html  (simple how to)
          /docs/config/cluster.html (reference documentation) -->
      <!--
      <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
      -->

      <!-- Use the LockOutRealm to prevent attempts to guess user passwords
           via a brute-force attack -->
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <!-- This Realm uses the UserDatabase configured in the global JNDI
             resources under the key "UserDatabase".  Any edits
             that are performed against this UserDatabase are immediately
             available for use by the Realm.  -->
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>
  </Service>
</Server>

Last edited by Necrotrophic (2016-05-11 00:43:40)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,426

Website

Re: Tomcat 8 will not let me use web manager

Not a Sysadmin issue, moving to Networking and Servers...

---

Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

toz

Member

Registered: 2011-10-28

Posts: 506

Re: Tomcat 8 will not let me use web manager

server xml: (ive switched /conf and the actual path to my users.xml but it never works either way)

The line should be a relative path. It should read:

pathname="conf/tomcat-users.xml" />

Edit: Also make sure the permissions of the files are correct.

journalctl -u tomcat8 | grep SEVERE

...might also help.

Last edited by toz (2016-05-11 02:23:23)

Necrotrophic

Member

Registered: 2010-02-25

Posts: 8

Re: Tomcat 8 will not let me use web manager

[joe@joes76 ~]$ journalctl -u tomcat8 | grep SEVERE
                                         SEVERE: The specified user database [conf/tomcat-users.xml] could not be found
                                         SEVERE: The specified user database [conf/tomcat-users.xml] could not be found
                                         SEVERE: The specified user database [conf/tomcat-users.xml] could not be found
                                         SEVERE: The specified user database [conf/tomcat-users.xml] could not be found
                                         SEVERE: The specified user database [conf/tomcat-users.xml] could not be found
                                         SEVERE: The specified user database [conf/tomcat-users.xml] could not be found
                                         SEVERE: The specified user database [/etc/tomcat8/tomcat-users.xml] could not be found
                                        SEVERE: The specified user database [/etc/tomcat8/tomcat-users.xml] could not be found
                                        SEVERE: The specified user database [/conf/tomcat-users.xml] could not be found
                                        SEVERE: The specified user database [/conf/tomcat-users.xml] could not be found
                                        SEVERE: The specified user database [/conf/tomcat-users.xml] could not be found
                                        SEVERE: The specified user database [/conf/tomcat-users.xml] could not be found

this is the output of the command you gave. Any suggestions?

toz

Member

Registered: 2011-10-28

Posts: 506

Re: Tomcat 8 will not let me use web manager

Change the line in server.xml to not include the leading slash:

pathname="conf/tomcat-users.xml" />

Also post back:

ls -l /etc/tomcat8

Necrotrophic

Member

Registered: 2010-02-25

Posts: 8

Re: Tomcat 8 will not let me use web manager

[joe@joes76 ~]$ ls -l /etc/tomcat8
total 220
drwxrwxr-x 3 root tomcat8   4096 May  9 19:53 Catalina
-rw-r----- 1 root tomcat8  12374 Apr 24 11:04 catalina.policy
-rw-r----- 1 root tomcat8   7106 Apr 24 11:04 catalina.properties
-rw-r----- 1 root tomcat8   1577 Apr 24 11:04 context.xml
-rw-r----- 1 root tomcat8   3387 Apr 24 11:04 logging.properties
-rw-r----- 1 root root      6517 May 10 23:01 server.xml
-rw-r----- 1 root root      2212 May 10 20:27 tomcat-users.xml
-rw-r----- 1 root tomcat8   2634 Apr 24 11:04 tomcat-users.xsd
-rw-r----- 1 root tomcat8 168822 Apr 24 11:04 web.xml

i removed the leading slash too

toz

Member

Registered: 2011-10-28

Posts: 506

Re: Tomcat 8 will not let me use web manager

The group needs to be set to tomcat8 for both server.xml and tomcat-users.xml or else tomcat won't be able to read it:

chgrp tomcat8 server.xml tomcat-users.xml

Necrotrophic

Member

Registered: 2010-02-25

Posts: 8

Re: Tomcat 8 will not let me use web manager

That worked! Thank you so much!