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Redirect Port 80

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Name: grantos
Date: January 14, 2009 at 08:46:02 Pacific
OS: Windows Server 2003
CPU/Ram: NA
Product: N/a / NA
Subcategory: Configurations
Comment:

Hi, i have recently set up a new 2003 server that will act as a web server for both LAN clients and WAN clients.

As such there are 2 web sites defined in IIS, one on port 80 which serves the LAN and one on port 81 that will serve the WAN.

As expected there is no problem with either site, however, i am trying to configure the services and ports in routing and remote access to enable incoming traffic (WAN interface) on port 80 to redirect to port 81 so to provide a seemless browsing experience for WAN users and not require them to type in :81 after the URL.

Note: it is important for 2 different IIS sites to exist and also that the experience is seemless.

The problem I am having is that when you get routing and remote access to forward from 80 to 81, it says

THE SPECIFIED SPECIAL PORT ALREADY EXISTS. ENTER A UNIQUE SPECIAL PORT.

so obviously i cant create a new rule when one already exists but if i go to the pre-existing template for the WEB SERVER (HTTP) > you cant change the ports as they are greyed out!!

Does anyone know how to get around this problem?

Regards
Grant.



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Response Number 1
Name: Titan8990
Date: January 14, 2009 at 08:54:45 Pacific
Reply:

This is something that should be done on your router or firewall and not on the actual web server. Are you using an ISA server or a hardware firewall?


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Response Number 2
Name: grantos
Date: January 14, 2009 at 08:56:33 Pacific
Reply:

Unfortunately i am using the server as a firewall..


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Response Number 3
Name: jefro
Date: January 14, 2009 at 14:24:51 Pacific
Reply:

Your dns server ought to point to 81 or you have to hard link it.

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Response Number 4
Name: wanderer
Date: January 14, 2009 at 15:36:38 Pacific
Reply:

I believe what Jefro is so cryptically referring to is talk to your isp concerning the web site and get them to change your url in their dns to include the port 81.

So when users go www.yoursite.com dns really says www.yoursite.com:81 but web browsers only see www.yoursite.com


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Response Number 5
Name: grantos
Date: January 14, 2009 at 16:03:24 Pacific
Reply:

I have checked out my DNS settings with my hosting provider, are you suggesting i add port details to an A record or a CNAME record?


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Response Number 6
Name: wanderer
Date: January 14, 2009 at 16:08:04 Pacific
Reply:

I have to think you have more than one domain name resolving to your servers ip since you have two domains so that would make it the cname you want to include port 81 in.


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Response Number 7
Name: grantos
Date: January 14, 2009 at 16:14:46 Pacific
Reply:

well lets just say my domain name is apple.com and it points to my servers IP via an A record.

are you saying i should add a cname record like test.apple.com that points to apple.com:81?


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