Re: Restrict access to webapps for IPs

2005-05-11 Thread Lutz Zetzsche
Hi Jens,

Am Mittwoch, 11. Mai 2005 08:17 schrieb Altrock, Jens:
 Ok tried it again.. first some more information:
 I am using Tomcat 5.0.28 on Redhat Fedora Core 3, installed in
 /usr/local/tomcat

 I created a XML file called application.xml in
 /usr/local/tomcat/conf/Catalina/localhost
 where application is the name of the webapp. That worked so far.
 The file consisted just of a few lines:

 Context path=/NetAdmin docBase=${catalina.home}/webapps/NetAdmin
 debug=0 privileged=true
   Valve className=org.apache.catalina.valves.RemoteAddrValve
 allow=192.100.46.*,172.16.*.*,194.25.29.*,127.0.0.1/
 /Context

 I have to mention that I did neither write that app nor know much
 about it anyway.. it uses a JDBC connection
 to a mysql database to write data to that db. But after creating that
 config file mentioned above, the
 JDBC driver didn't work anymore...

 Anyone can help me with that?

It looks like your new Context definition is overriding an existing 
Context definition for this web application which contains the resource 
definition for the MySQL database.

So you should have a look at your $CATALINA_HOME/conf/server.xml if 
there might be a existing Context definition inside the related Host 
element.

You should also look for a context.xml in the 
$CATALINA_HOME/webapps/[webapp]/META-INF/ directory for the same 
reason.

If you will find an existing Context definition, then insert your valve 
filter there and delete you newly created application.xml.


Best wishes

Lutz

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Re: Restrict access to webapps for IPs

2005-05-11 Thread Lutz Zetzsche
Hi Jens,

Am Mittwoch, 11. Mai 2005 09:01 schrieb Altrock, Jens:
  -Ursprüngliche Nachricht-
  Von: Lutz Zetzsche [mailto:[EMAIL PROTECTED]
  Gesendet: Mittwoch, 11. Mai 2005 08:50
  An: Tomcat Users List
  Betreff: Re: Restrict access to webapps for IPs
 
 
  Hi Jens,
 
  Am Mittwoch, 11. Mai 2005 08:17 schrieb Altrock, Jens:
   Ok tried it again.. first some more information:
   I am using Tomcat 5.0.28 on Redhat Fedora Core 3, installed in
   /usr/local/tomcat

[...]

   I have to mention that I did neither write that app nor know much
   about it anyway.. it uses a JDBC connection
   to a mysql database to write data to that db. But after
 
  creating that
 
   config file mentioned above, the
   JDBC driver didn't work anymore...
  
   Anyone can help me with that?
 
  It looks like your new Context definition is overriding an existing
  Context definition for this web application which contains
  the resource
  definition for the MySQL database.
 
  So you should have a look at your $CATALINA_HOME/conf/server.xml if
  there might be a existing Context definition inside the related
  Host element.

 I looked at the $CATALINA_HOME/conf/server.xml file, but can't find
 anything like that inside the HOST element. It's the standard
 server.xml file though, I don't know in what way a servlet itself can
 change that file; but I don't think it can.

  You should also look for a context.xml in the
  $CATALINA_HOME/webapps/[webapp]/META-INF/ directory for the same
  reason.

 I did, but there is none, and there never was one. That's what I
 thought first,
 but there's just a MANIFEST.MF file inside.

If the MySQL database base connection has worked before and will work 
again, when you remove your newly created Context file, then there has 
to be a Resource definition for it somewhere.

As you are using Linux why don't you simply search the files in the 
$CATALINA_HOME directory for this Resource definition? I.e. like this:

grep -R mysql /usr/local/tomcat

This way, you should find the file defining the MySQL resource for your 
web application (context). Then proceed as I suggested.


Best wishes

Lutz

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RE : Restrict access to webapps for IPs

2005-05-11 Thread LERBSCHER Jean-Pierre
See
http://jakarta.apache.org/tomcat/tomcat-5.0-doc/config/host.html#Automatic
Application Deployment

 When using automatic deployment, the docBase defined by an XML Context
file should be outside of the appBase directory. If this is not the case
difficulties may be experienced deploying the web application or the
application may be deployed twice.


-Message d'origine-
De : Altrock, Jens [mailto:[EMAIL PROTECTED] 
Envoyé : mercredi 11 mai 2005 09:01
À : 'Tomcat Users List'
Objet : AW: Restrict access to webapps for IPs

 -Ursprüngliche Nachricht-
 Von: Lutz Zetzsche [mailto:[EMAIL PROTECTED]
 Gesendet: Mittwoch, 11. Mai 2005 08:50
 An: Tomcat Users List
 Betreff: Re: Restrict access to webapps for IPs
 
 
 Hi Jens,
 
 Am Mittwoch, 11. Mai 2005 08:17 schrieb Altrock, Jens:
  Ok tried it again.. first some more information:
  I am using Tomcat 5.0.28 on Redhat Fedora Core 3, installed in
  /usr/local/tomcat
 
  I created a XML file called application.xml in
  /usr/local/tomcat/conf/Catalina/localhost
  where application is the name of the webapp. That worked so far.
  The file consisted just of a few lines:
 
  Context path=/NetAdmin 
 docBase=${catalina.home}/webapps/NetAdmin
  debug=0 privileged=true
Valve className=org.apache.catalina.valves.RemoteAddrValve
  allow=192.100.46.*,172.16.*.*,194.25.29.*,127.0.0.1/
  /Context
 
  I have to mention that I did neither write that app nor know much
  about it anyway.. it uses a JDBC connection
  to a mysql database to write data to that db. But after 
 creating that
  config file mentioned above, the
  JDBC driver didn't work anymore...
 
  Anyone can help me with that?
 
 It looks like your new Context definition is overriding an existing 
 Context definition for this web application which contains 
 the resource 
 definition for the MySQL database.
 
 So you should have a look at your $CATALINA_HOME/conf/server.xml if 
 there might be a existing Context definition inside the related Host 
 element.


I looked at the $CATALINA_HOME/conf/server.xml file, but can't find anything
like that inside the HOST element. It's the standard server.xml file though,
I don't know in what way a servlet itself can change that file; but I don't 
think it can.
 
 You should also look for a context.xml in the 
 $CATALINA_HOME/webapps/[webapp]/META-INF/ directory for the same 
 reason.
 

I did, but there is none, and there never was one. That's what I thought
first,
but there's just a MANIFEST.MF file inside.

 If you will find an existing Context definition, then insert 
 your valve 
 filter there and delete you newly created application.xml.
 
 
 Best wishes
 
 Lutz
 
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I attached the server.xml and the application's xml file to the mail though.

Regards,

Jens

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Re: Restrict access to webapps for IPs

2005-05-10 Thread Tim Funk
http://jakarta.apache.org/tomcat/faq/security.html#restrict
-Tim
Altrock, Jens wrote:
Hi there,
Hope this question won't sound as dumb, for I am completely new to Tomcat;
and I haven't found 
what I was searching for in the documentation though...

I got four different applications/websites in the Tomcat webapps directory,
let's just call them A,
B, C and D. 
The applications A, B and C should be accessible from the networks
192.100.46.0/24 
as well as 172.16.0.0/16
But application D should be accessible from anywhere.

Is there any way to do this in tomcat? I tried with the apache .htaccess
files, but that won't work though.
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Re: Restrict access to webapps for IPs

2005-05-10 Thread Lutz Zetzsche
Hi Jens,

Altrock, Jens schrieb:
 That's what I already read, but there's never said in which config files
 to put that in, nor are there any examples... or didn't I see them too?

What you are looking for is the RemoteAddrValve valve:

http://jakarta.apache.org/tomcat/tomcat-5.5-doc/config/valve.html#Remote%20Address%20Filter

Reading your first mail, the right place for the RemoteAddrValve valve
should be within the Context element in your case, although it can also
used for the Host or even the Engine. Each Context element is representing
a web application. For more information, please read the following page
which also explains where to store the Context element:

http://jakarta.apache.org/tomcat/tomcat-5.5-doc/config/context.html

Please not that the above two links refer to Tomcat version 5.5. The
information on these pages may not suit previous Tomcat versions. If you
use a Tomcat version prior to 5.5, please consult the respective
documentation.


Best wishes

Lutz




 -Ursprüngliche Nachricht-
 Von: Tim Funk [mailto:[EMAIL PROTECTED]
 Gesendet: Dienstag, 10. Mai 2005 14:42
 An: Tomcat Users List
 Betreff: Re: Restrict access to webapps for IPs


 http://jakarta.apache.org/tomcat/faq/security.html#restrict

 -Tim

 Altrock, Jens wrote:
  Hi there,
 
  Hope this question won't sound as dumb, for I am completely
 new to Tomcat;
  and I haven't found
  what I was searching for in the documentation though...
 
  I got four different applications/websites in the Tomcat
 webapps directory,
  let's just call them A,
  B, C and D.
  The applications A, B and C should be accessible from the networks
  192.100.46.0/24
  as well as 172.16.0.0/16
  But application D should be accessible from anywhere.
 
  Is there any way to do this in tomcat? I tried with the
 apache .htaccess
  files, but that won't work though.
 

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Re: Restrict access to webapps for IPs

2005-05-10 Thread Lutz Zetzsche
Hi Jens,

Altrock, Jens schrieb:
 Ok, got that. But do I need to install the regular expressions library?

To my practical knowledge, the RemoteAddrValve will work out of the box.
You don't have to install additional libraries to get it work.


 And how to say that I want a whole subnet to be added?

For allowing a whole subnet, just use an asterisk in the allow attribute
value:

 Valve ... allow=192.168.0.*/


Lutz


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RE: Restrict access to webapps for IPs

2005-05-10 Thread Raghupathy,Gurumoorthy
Nopt in web.xml but in server.xml in your context/context


-Original Message-
From: Altrock, Jens [mailto:[EMAIL PROTECTED] 
Sent: 10 May 2005 15:13
To: 'Tomcat Users List'
Subject: AW: Restrict access to webapps for IPs


Hm... won't work :(

I added to noe of the apps in webapps/name_of_app/WEB-INF/web.xml the
following:

Valve className=org.apache.catalina.valves.RemoteAddrValve
allow=192.100.46.*/

right after the web-app tag in the xml file.
But people can access that application from the internet anyway...


 -Ursprüngliche Nachricht-
 Von: Lutz Zetzsche [mailto:[EMAIL PROTECTED]
 Gesendet: Dienstag, 10. Mai 2005 16:00
 An: Tomcat Users List
 Betreff: Re: Restrict access to webapps for IPs
 
 
 Hi Jens,
 
 Altrock, Jens schrieb:
  Ok, got that. But do I need to install the regular 
 expressions library?
 
 To my practical knowledge, the RemoteAddrValve will work out 
 of the box.
 You don't have to install additional libraries to get it work.
 
 
  And how to say that I want a whole subnet to be added?
 
 For allowing a whole subnet, just use an asterisk in the 
 allow attribute
 value:
 
  Valve ... allow=192.168.0.*/
 
 
 Lutz
 
 
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Re: Restrict access to webapps for IPs

2005-05-10 Thread Lutz Zetzsche
Hi Jens,

Altrock, Jens schrieb:
 Hm... won't work :(

 I added to noe of the apps in webapps/name_of_app/WEB-INF/web.xml the
 following:

 Valve className=org.apache.catalina.valves.RemoteAddrValve
 allow=192.100.46.*/

 right after the web-app tag in the xml file.
 But people can access that application from the internet anyway...

You have put the Valve element into the wrong file resp. place. It cannot
be nested into the web-app element and cannot be placed in the web.xml.
You have to nest it into a engine, host oder context element.

In your case, you have to nest it into the context element because you
want to apply the filter rule to a web application which is equivalent to
the context element in Tomcat terms.

You should have a look at one of the links I mentioned to find the right
place for the Valve element:

http://jakarta.apache.org/tomcat/tomcat-5.5-doc/config/context.html

Try one of these options offered on this page (refers to Tomcat version 5.5):

* in individual files (with a .xml extension) in the
$CATALINA_HOME/conf/[enginename]/[hostname]/ directory
* if the previous file was not found for this application, in individual
file at /META-INF/context.xml inside the application files


Best wishes

Lutz


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RE: Restrict access to webapps for IPs

2005-05-10 Thread Lutz Zetzsche
Hi,

Raghupathy,Gurumoorthy schrieb:
 Nopt in web.xml but in server.xml in your context/context

As regards the server.xml, this depends on the Tomcat version, you are
using. The documentation emphasizes:

Please note that for tomcat 5, unlike tomcat 4.x, it is NOT recommended
to place Context elements directly in the server.xml file.

- http://jakarta.apache.org/tomcat/tomcat-5.5-doc/config/context.html


Best wishes

Lutz


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