Topic: Problem with mod_jk.so

[doyledp]

Hi.

I have just set up a new configuration

Windows XP SP2
Apache 2.2.2
PHP 5.2.0-dev
Apache Tomcat 5.5.17

I am new to configuring apache and tomcat. But I wan't to use the mod_jk approach to not having to use port numbers in requests for tomcat. In other words use:
http://localhost/jsp-examples/jsp2/el/basic-arithmetic.jsp
instead of
http://localhost:8080/jsp-examples/jsp2/el/basic-arithmetic.jsp
I got this working fine by:

1. Adding mod_jk.so to C:\Program Files\Apache Software Foundation\Apache2.2\modules.

2. Add the following to the end of Apache httpd.conf file.

Include "C:\Program Files\Apache Software Foundation\Tomcat 5.5\conf\auto\mod_jk.conf"

4. Add the following line to the server.xml file before “<Host name=”localhost” appBase=”webapps” in C:\Program Files\Apache Software Foundation\Tomcat 5.5\conf.

<Realm className="org.apache.catalina.realm.UserDatabaseRealm"/>

<Listener className="org.apache.jk.config.ApacheConfig" modJk="C:/Program Files/Apache Software Foundation/Apache2.2/modules/mod_jk.so" />

5. Create a new text file called workers2.properties and paste the following into it. Save this file in the following directory:

C:\Program Files\Apache Software Foundation\Apache2.2\conf
[logger]
level=DEBUG
file=C:/Program Files/Apache Software Foundation/Apache2.2/logs/jk2.log
[config]
file=C:/Program Files/Apache Software Foundation/Apache2.2/conf/workers.properties
debug=0
debugEnv=0


[shm]
file=C:/Program Files/Apache Software Foundation/Apache2.2/logs/jk2.shm
size=1048576

# socket channel
[channel.socket:localhost:8009]
port=8009
host=127.0.0.1

# worker for the connector
[ajp13:localhost:8009]
channel=channel.socket:localhost:8009

[status:status]

[uri:/status/*]
worker=status:status

[uri:/jsp-examples/*]
worker=ajp13:localhost:8009

[uri:/*.jsp]
worker=ajp13:localhost:8009

The problem occurs when I use a domain name. For example if I use
http://name.homeip.net/jsp-examples/jsp2/el/basic-arithmetic.jsp
I see the original jsp source, however if I use
http://name.homeip.net:8080/jsp-examples/jsp2/el/basic-arithmetic.jsp
It works fine.

I have tried loads of things including adding the following to my workers2.properties file.

[uri:donal.homeip.net/jsp-examples/*]
worker=ajp13:donal.homeip.net:8009

[uri:donal.homeip.net/*.jsp]
worker=ajp13:donal.homeip.net:8009

In case it might make a difference my computer is a home computer. And I am using dyndns to map the url donal.homeip.net to my ip address. The requests are being forwarded through a Linksys WRT54GS Router, by enabling port forwarding for ports 80 and 8080 to the internal ip of my pc.

[admin]

Why not use mod_proxy_ajp http://httpd.apache.org/docs/2.2/mod/mod_proxy_ajp.html

Example:

ProxyPass /examples ajp://127.0.0.1:8009/examples
ProxyPassReverse /examples ajp://127.0.0.1:8009/examples

Steffen

[doyledp]

Thanks for the prompt reply.

I have enabled the mod_proxy_ajp by changing the line
#LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
to
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
in httpd.conf.

Can restart apache then.

Where would I add the following lines to my configuration

ProxyPass /jsp-examples ajp://127.0.0.1:8009/jsp-examples
ProxyPassReverse /jsp-examples ajp://127.0.0.1:8009/jsp-examples

If I add it to httpd.conf, apache can't restart

[admin]

When you run Apache in a DOS box you can see the startup-errors.

Did you enable: LoadModule proxy_module modules/mod_proxy.so ?

[doyledp]

Got it working.

The problem was that I forget to enable LoadModule proxy_module modules/mod_proxy.so

Thanks a million for your help. Have been looking all over the web for hours. Was looking for the wrong things. Learnt a lot today.

Is there any security issues I should consider as a result of using the proxy method?

[admin]

A million ? So much donation ?

Be sure to set: ProxyRequests Off

Indeed using mod_jk can be a hassle. Mod_proxy_ajp is new in Apache 2.2 .

Steffen

[mphare]

I'll have to check out mod_proxy_ajp.

I'm using Apache 2.2.2 with Tomcat 5.5.17 using mod_jk.

This is my addition to httpd.conf

[Jorge]

would