From: Robert Klemme <shortcutter@...>
Date: 2007-01-14T04:15:08+09:00
Subject: Re: Running Webrick alongside IIS on port 80

On 13.01.2007 16:17, Ron M wrote:
> Robert Klemme wrote:
>> On 12.01.2007 23:47, Prashant Deva wrote:
>>> Can anyone tell me how to have both iis and webrick running on port 80,
>>> otherwise people will need to add the port 3000 to the site name each
>>> time they visit the ruby site.
>> Um, you cannot have to processes listen on the same port on one
>> interface.  
> 
> Sure you can.  You can if you give the interface card 2 IP addresses
> and have each process only listen to port 80 on one of the IPs.

You actually can have *two* IP addresses on *one* NIC?  Are you sure 
about that?  How would you configure that for example on Linux?

> I don't know how to do this in IIS; but Apache's docs describe
> in their "Setting up multiple daemons" daemons section.   I assume
> webrick offers similar?  Or are you considering this a different port?

Even if IIS and Webrick both support binding to just one IP address 
(which I assume) then you still need two DNS names - one for each IP. 
The OP did not sound as if that was what he wanted  - if it's possible 
at all.  Of course you could map one DNS name to both IP's but this 
might yield unpredictable results.

> I'd say his easiest alternative is to run Apache on port 80; and
> have it proxy some requests to some ruby server (hopefully better
> than webrick - maybe mongrel) and proxy other requests to IIS running
> on a different port.  And then firewall off the IIS and webrick ports
> of course for security reasons.

I'd say the *easiest* is to just run Ruby code via CGI - or just have 
Webrick run on another port.  With your setup you have three pieces of 
software to configure, run and monitor vs. two in the other case.

Regards

	robert