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From "Johnny Kewl" <>
Subject Re: mod_proxy or mod_jk?
Date Sun, 18 Nov 2007 13:13:57 GMT

Now Tomcat is also a cool pojo application server
----- Original Message ----- 
From: "Rocco Scappatura" <>
To: <>
Sent: Sunday, November 18, 2007 3:20 AM
Subject: mod_proxy or mod_jk?

You need to post your config files for real help...
I think everyone is tired of arguing the differences... just google for 
I like mod_jk just because its worked on by Tomcat developers and thus the 
focus is very much on Tomcat.

Here a tip to get you going...
This works on TC 5.5

put this in your servlet.xml file

<Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true" 
xmlValidation="false" xmlNamespaceAware="false">
<!--  Added this for JK THIS-->
  <Listener className="org.apache.jk.config.ApacheConfig" append="true" 
forwardAll="false" modJk="Path/To/" />

Start Tomcat.... it will generate the mod_jk.conf file under 
In the apache httpd.cong file... somewhere near the bottom...
# I added this for connector ======
Include "Path/To/Tomcat 5.5/conf/auto/mod_jk.conf"

That will make apache front end tomcat...

Then just study those files...
It generates all the core stuff... all the JKMounts folder protection etc 
for all your webapps.

Then you can edit as required... add aliases etc.

Load sharing is different again... but the generated file comes in handy 
there as well.
Remember that everytime you start tomcat this is generated... so remove the 
listener if you dont want it to change, or copy it and point apache at that.

Have fun...

> Hello.
> I would like to publish a Web application running under Tomcat.
> I'm using Apache 2 as Web server.
> Basically, I have two opportunities:
> 1) mod_jk
> 2) mod_proxy
> I've tried the first. So I discover that I ve:
> - Create an alias in httpd.conf so that al static pages are processed
> directly by Apache2.
> - Use JkMount directive so that path is mapped to worker (and so to 
> Tomcat)
> I don't know I have well understod the concept, but I have noted that
> application doesn't work correcltly. For example, assuming that the path
> of the application is '/path'. When I accesst to http://<hostname>/path
> all works fine. But if I access to http://<hostname>/path/subpath I get
> Visualizzation errors (It seems tome that it misses CSS.. and so on).
> I read that it is possible to use mod proxy.
> Now, I would like to know from mailing list if mod_proxy is the best
> choice or otherwise if I have to solve problem similiar to the one I ve
> pointed out above, and to use mod_jk.
> Thanks,
> rocsca
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