not able to acces domain without port name

remo123 · 07-28-2009, 01:15 PM

Hi,

I am not able to access my domain without port number.
Eg.its running like http://www.example.com:9080 where as i wnat it to work without port number. i.e www.example.com
my tomcat is running on 9080 . i have hosted my application on godaddy's linux virtual dedicated server.
my server.xml is something like this
<Connector connectionTimeout="20000" maxSpareThreads="75" maxThreads="150" minSpareThreads="25" port="9080" redirectPort="9443"/>
<Connector port="8009" protocol="AJP/1.3"/>
<Engine defaultHost="example" name="Catalina">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"/>
<Host appBase="/home/admin/webapps" name="example">
<Alias>www.example.com</Alias>
</Host>

kindly help me.

acid_kewpie · 07-28-2009, 01:38 PM

well you need to be running something on port 80 if you want to access it on port 80. You could either make tomcat listen directly, configure a normal web server like apache to listen and send a 302 redirect to get that jump up to 9080 done, or redirect with iptables:

Code:

$IPTABLES -t nat -A PREROUTING -p tcp -d $EXTIP --dport 80 -j REDIRECT --to-port 9080

remo123 · 07-29-2009, 02:53 AM

Quote:

Originally Posted by acid_kewpie

well you need to be running something on port 80 if you want to access it on port 80. You could either make tomcat listen directly, configure a normal web server like apache to listen and send a 302 redirect to get that jump up to 9080 done, or redirect with iptables:

Code:

$IPTABLES -t nat -A PREROUTING -p tcp -d $EXTIP --dport 80 -j REDIRECT --to-port 9080

ya. thanks. that made sense. but i m very new to all of these. could u pls tel me where do need to run that IPTABLES command?

acid_kewpie · 07-29-2009, 04:29 AM

It, or a version of it, would go in our firewall startup script, but as you've not said what distro you're using I can't say what that would be. /etc/sysconfig/iptables or a redhat variant.

nowonmai · 07-29-2009, 08:59 AM

With Tomcat, the standard way of achieving this is to run apache webserver on the box, and proxy tomcat using the Tomcat JK Connector.

remo123 · 07-30-2009, 12:09 AM

iptables -t nat -A PREROUTING -d your hostname -p tcp --dport 80 -j REDIRECT --to-ports 9080

wen i run the above command i m getting following error!

WARNING: /etc/modprobe.d line 1: ignoring bad line starting with 'á-@'
FATAL: Could not load /lib/modules/2.6.18-028stab059.6/modules.dep: No such file or directory
iptables v1.3.8: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

Could u plz guide me in detail how to upgrade iptables version as i m very new to linux.
my current iptables version is : iptables v1.3.8 and kernel version is
2.6.18-028stab059.6

nowonmai · 07-30-2009, 05:14 AM

Using iptables to do dumb packet redirection is NOT the correct way to proceed in this matter.
You need to set up Apache2 using mod_jk to handle the communication between Apache and Tomcat.

A simple tutorial here... http://www.howtoforge.com/apache2_tomcat5_mod_jk

acid_kewpie · 07-30-2009, 05:18 AM

Yeah I forgot about the connector, generally a much better solution.

remo123 · 08-10-2009, 11:40 AM

Quote:

Originally Posted by acid_kewpie

Yeah I forgot about the connector, generally a much better solution.

Hi
I m using mod jk connector to configure tomcat with apache. But able to access only my static files whenever i access my domain.

I am getting following error in mod_jk.log

[Sat Aug 08 23:42:24 2009][3289:3079326032] [error] uri_worker_map_ext::jk_uri_worker_map.c (505): Could not find worker with name 'wlb' in uri map post processing.

my workers.properties is something like this.

workers.tomcat_home=/usr/java/tomcat-5.5
workers.java_home=/usr/java/jdk
ps=/
worker.list=ajp13w
worker.ajp13w.type=ajp13
worker.ajp13w.host=localhost
worker.ajp13w.port=8009
worker.ajp13w.lbfactor=1

here ajp3w as worker name but from where i m getting that wlb