Questions[tomcat](ubuntu)

I always get this message that I can't follow:

sudo systemctl status -l tomcat8.service
● tomcat8.service - LSB: Start Tomcat.
   Loaded: loaded (/etc/init.d/tomcat8)
   Active: failed (Result: exit-code) since sáb 2015-05-09 00:48:07 CEST; 2h 31min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 1295 ExecStart=/etc/init.d/tomcat8 start (code=exited, status=127)

may 09 00:48:07 vaio systemd[1]: Starting LSB: Start Tomcat....
may 09 00:48:07 vaio tomcat8[1295]: [58B blob data]
may 09 00:48:07 vaio systemd[1]: tomcat8.service: control process exited, code=exited status=127
may 09 00:48:07 vaio systemd[1]: Failed to start LSB: Start Tomcat..
may 09 00:48:07 vaio systemd[1]: Unit tomcat8.service entered failed state.
may 09 00:48:07 vaio systemd[1]: tomcat8.service failed.

Any idea?

Thank you in advance!!

Based here I'm trying to setup Tomcat Server, I have successfully installed it and tested it. Then I stopped it as recommended in the tutorial. I'm setting up "New Server Runtime Environment" as you can see under Tomcat Installation Directory is a windows directory, anyone knows the Ubuntu directory equivalent for this? Thanks.

For some applications its fairly easy enough to locate where the application was installed to using the "which" command. However, some applications such as Tomcat are a little out of my league to locate.

I'm asking for particular methodology that can be applied to any apt-get install to locate where the binary, library, and support files are installed to.

The cause of this question is that I installed Tomcat7 and I can's seem to locate it and I have a list of customizations to perform.

I am trying to set up the admin application for a Tomcat 6.0.24 instance. None of the searches I've done turn up anything I can use. I am using this configuration for Apache 2.2.14:

Alias /manager /usr/share/tomcat6-admin/manager

<Directory "/usr/share/tomcat6-admin/manager">
        Options Indexes FollowSymLinks
        AllowOverride None
        allow from all
</Directory>

ProxyPass /manager ajp://localhost:8009/manager

In the tomcat-users.xml I have this:

<tomcat-users>
  <role rolename="tomcat"/>
  <role rolename="admin"/>
  <role rolename="operator"/>
  <role rolename="manager"/>
  <user username="admin" password="nopasswordforyou" roles="admin,tomcat,manager"/>
  <user username="operator" password="nevermind" roles="operator"/>
</tomcat-users>

I found the docs that suggested I needed manager-gui role installed and defined, but that appears to be Tomcat 7, not Tomcat 6.

The manager.xml is the default provided with Ubuntu Lucid Lynx 10.04:

<Context path="/manager" 
        docBase="/usr/share/tomcat6-admin/manager" 
        antiResourceLocking="false" privileged="true" />

If I access /manager from a web browser, I get a 404 error from Tomcat: "requested resource not available." If I access /manager/images I get the same thing. If I access /manager/401.jsp I get the actual page.

In addition, the server.xml has not only the usual Realm (UserDatabaseRealm) but also one for MySQL authentication (JDBCRealm). Investigating this showed that the role of manager was not present there for the user admin; I fixed that by doing:

INSERT USER_ROLE_DB SET USER_NAME='admin', ROLE_NAME='manager';

I restarted Tomcat, although I suspect that was overkill. No change. I don't see any errors in catalina.out or in localhost.* log files.

What am I missing? What is the interaction between the different realms? How do I get the manager application working?

I have installed tomcat on my Ubuntu Home 11.10 system and can successfully access the test page online after port forwarding on 8080 within my router.

I have not made any other changes to the router, Ubuntu or the tomcat install, everything else has remained standard. I intend on using this to play around with Java Servlets and basic web development for my own personal use.

What steps, if any, would you suggest I take to ensure this is secure? Should I change anything within the Tomcat configuration? This seemed like a good idea to limit access - http://www.seankilleen.com/2010/09/how-to-allow-only-specific-ip-addresses_30.html

But I am open to any other recommendations.