[Macpartners] mapping ports on http requests

[Scott C. Jensen]

Hi,
      We do this here with firewall rules under Leopard server.   
Here's the rules that work for us (I don't believe the 2nd one is  
necessary, but add it if you need it):

fwd 127.0.0.1,8000 tcp from any to any dst-port 80 in
allow tcp from any to any dst-port 8000

      I use the GUI in Server Admin to add these rules, but you should  
be able to add them with the ipfw command in a non-server version of  
Leopard.

      Hope this helps...
                                                        ---SCJ



On Apr 7, 2009, at 8:42 AM, Mark Klein wrote:

>
> I am running an HTTP server (cl-http) on a Mac under OS 10.5. The  
> server listens only to port 8000, and there is apparently no easy  
> way to change that. This means, however, that some people are unable  
> to access my server because their firewalls block ports above 1000.  
> So, what I'd like to do is find a way to re-direct http requests  
> sent to port 80 on my Mac so they go to port 8000. I've heard there  
> are several ways this can be done, including:
>
>   - use NATD (the Network Address Translation daemon)
>   - use forwarding rules on my Mac's firewall
>
> I've tried several ways to configure this, including:
>
>  - using ipfw from the command line
>  - using portmap (which I believe configures the network address  
> translation)
>  - using waterroof (which can configure firewall rules, as well as  
> the NATD)
>
> None have worked for me. I suspect that I'm missing some simple  
> piece to the configuration process, but I have no idea what.
>
> Is there a Mac OS guru out there whom could help set up the http  
> port mapping properly on my Mac? I would greatly appreciate it, this  
> has held me up for several weeks.
>
>   Thanks very much,
>
> 	  Mark
>
> -----------------
> Mark Klein
> Principal Research Scientist
> MIT Center for Collective Intelligence
> http://cci.mit.edu/klein/


-- 
Scott C. Jensen
   Asst. Director, Office of Info Services
     MIT Corporate Relations - Industrial Liaison Program
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