Sharing port 80 between IIS and Tomcan server on the same machine

hi, here is the situation:

we have two subdomains pointing to the same computer  (windows server 2008) and we are running IIS as webserver on one domain and Tomcat as webserver on another domain.  this is what we have now: , ip , IIS on port 80 , ip , Tomcat on port 81

But it has become necessary to run both of them on port 80 and do routing based on the request (i guess by looking at the domain) .

How can i set this up in IIS and Tomcat? can anyone help ?

How can i
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samriConnect With a Mentor Commented:
hi Softverkpro,

I believe what you need is a method to divert to the corresponding server according to the request from client.  This could be done in Apache using VirtualHosting and Reverse Proxy facilities.

If you are stucked with IIS and Tomcat on the same box,  I would believe that this could be achieved as well.  

However, being naive on both IIS, and Tomcat, and with little experience on Apache, I would -

1.  setup up apache -- to listen on port 80
2.  Configure Tomcat to listed on 81
3.  configure IIS on port 82
4.  On apache, configure VirtualHosting -- one vhost for each servername - iis, and
5. setup reverse proxy for aeach ot the respective server:port

Some prev post on this subject.
Its not possible (AFAIK) to have two services running on the same port/same IP in this way. Have you not considered adding another IP address to the NIC of the machine, and pointing each of the domains to separate IP's. That way you can have tomcat bound to and iis bound to

I know its not what you asked, but what scenario would you need two webservers on the same IP /port?
I suspect this will not work.  Is there a reason you cannot use two separate IP addresses?
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You will need to add another IP to the NIC on this server ie - you can do this in network connections from control panel, TCP/IP settings, advanced button.

once you have done this you need to bind IIS to one IP and Tomcat to the other (both port 80)

to bind IIS right click my comp, manage, services and apps, IIS, Web sites, right click web site and properties, choose IP address.

Not sure how to bind tomcat but it will be in one of the settings files (maybe server.xml) in the conf folder no doubt.

update your DNS to point domain1 to and domain2 to
(you beat me too it woolnoir)
You propably want ot have a tomcat application served on the same domain or IP without needing clients to enter the specific port in their URL.
E.g.    should give a website     should give a the tomcat application

And you do not like to have the application as

Let IIS route all request to through internally to the tomcat server, which runs on another port. Configure IIS as a proxy for the tomcat server, which runs on the same machine but internally on another port. This port needs only be bind to localhost.



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