IIS7：将请求重定向到内部端口

Question

I have a NodeJS application. I want to create a different instance of this application for each of my clients. My initial thoughts were to have each instance in a different port, and then launch a Node instance listening to those ports:

Client 1: http://client1.myapp:81 (an instance of my Node app listening port 81)

Client 2: http://client2.myapp:82 (an instance of my Node app listening port 82)

...

I wouldn't want to open so many ports externally, so I'd like to know if it's possible to have my clients accessing their apps through port 80:

Client 1: http://client1.myapp

Client 2: http://client2.myapp

...

and then have IIS redirect each request to its corresponding INTERNAL port, where the specific NodeJS app instance would be listening.

This way I only need port 80 opened externally.

Is this possible? Is this common practice?

Thanks in advance.

Answer 1

You can do what you suggested in your second example (sub domains). What you will need is a valid domain and a static IP address. You will need to add an A record (to your DNS server) to redirect all your sub domains to your IP (ie *.your_domain.com --> your IP address)

Then for each of your clients you will have to create a site with his header - clientX.your_domain.com

This is common practice. I also use this method to show my clients their websites.