Set up IIS to reverse proxy an internal server - iis

I have a Linux server serving a Flask application with Gunicorn. I have a separate Windows server with IIS. Only the IIS server is accessible publicly. How can I set up IIS as a reverse proxy to my internal server?

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Secure way of hosting Node.js on windows server

I need to host Node App on the Window Server using IIS. IIS provides only two ways iisnode module and reverse proxy using Application request Routing.
the problem here is that issnode is no longer being maintained by Microsoft and isn't secure to use, same as the case with reverse proxy.
What's the secure way of hosting Node.js app on Windows server?

Redirecting HTTPS call to a .NET Core Web API with IIS and Kestrel

hopefully someone can help me.
This is the scenario I want to implement:
Server A has IIS installed and hosts a web app "mysite.com" and some web apis.
Server B has a .NET Core Web API hosted as a Windows Service.
When a client makes a request to a specific port like "mysite.com:9091/api/get-value"
I would like for IIS to re-route that call with same payload to server B on "myapi:9091/api/get-value" through HTTP.
The reason I want to do this is because We have authentication and certificates already configured on Server A, and also we want all incoming requests to go through the main site.
I have been reading on reverse proxy with IIS, and it would seem to be what I need, but it's not clear if the hosted app that will be running under Kestrel must be on the same physical machine as the IIS Web Server (i.e. Server A), or I can re-route to whichever other server I want, as long as it's on same network.
Any thoughts will be appreciated.
Hopefully my question is clear enough, otherwise please do let me know and I'll try to rephrase.
It is not necesarray to have both kestrel and iis on same server.
You could use the iis URL rewrite rule and reverse proxy to forward the request to the Kestrel server:
https://techcommunity.microsoft.com/t5/iis-support-blog/setup-iis-with-url-rewrite-as-a-reverse-proxy-for-real-world/ba-p/846222
Host ASP.NET Core on Windows with IIS
https://learn.microsoft.com/en-us/aspnet/core/fundamentals/servers/kestrel?view=aspnetcore-3.1

How reverse proxy with SSL/TSL and plain traffic works?

I have a containerized Docker ASP.NET Core application created with
mcr.microsoft.com/dotnet/core/runtime:3.1.3-alpine
When launched the only reference to the port is this ENV variable from the base image
ASPNETCORE_URLS http://+:80
I deployed the app to Azure, setuped the registry and created a new Web Application.
I setup the TLS/SSL settings for working with https only.
Everythings works.
Question:
I want to know how this is possible since I don't config the certificate on my container, I suppose the Kudu service (the reverse proxy) rebind the 443 port to the 80 of the container. Is this true ? The plain http traffic between Kudu and the container on port 80 can cause a possible security hole ?
If I deploy a container with NGINX as a reverse-proxy for ASP.NET Core I must configure the TSL/SSL into NGINX ? On ASP.NET Core ? None at all ?
I want to understand how Kudu, NGINX, and the reverse proxy in general works with and without SSL/TSL
With a Reverse Proxy the client never connects to the HTTP server in your application, in your case Kestrel. The connections you get are requests coming from the Reverse Proxy, and you send your responses back to the Reverse Proxy. Most HTTP stuff is copied from the incoming client request and passed along to your application, but the Reverse Proxy can terminate the SSL tunnel, offload the Authentation, and perform other request transformations.

502 - web server received an invalid response while acting as a gateway or proxy server. IIS

I have 2 servers (Web & APP Server).
I have hosted my API's on APP Server & APP server is accessed by ARR from Web Server using reverse proxy.
The error is displayed exactly at 2 min after calling the API.
I have increased the time limit in IIS as well.
I updated the timeout in the Application request Routing of Reverse Proxy Server and this resolved my issue.
http://docs.360works.com/index.php/Update_IIS_timeout

How can ADFS be used with virtual directories in IIS?

I have IIS 7.5 installed. How can I configure a virtual directory so that it authenticates users against an instance of AD FS 2.0? I've tried modifying my web.config in a similar fashion to the way I modified it to work with C# web applications, but to no avail.
How I have my federated structure configured is The Local web server applications are located on Server 1, The Web server/Federation Proxy (Remote Access/Web Proxy Server) are located on Server 2, IIS is installed on both Server 1 and Server 2. SSL Port on Server 2 is the default (443). SSL Port on Server 1 is (465**){those are not actually the * character}. Server 2 (The server that actually receives the web requests from outside of the domain) Has Virtual directories located in the default inetpub folder. In IIS I redirect the virtual folder to The application on Server 1 (so if the application name on server 1 is server1.domain.com/AppliactionOne, the virtual directory on Server 2 is Named {/ApplicationOne} and is accessible from the address or domain you have forwarded in your external dns {external-address-or-domainName-for-server-2.com/ApplicationOne}. When setting up the forwarding address you need to forward the port for the address you configured in your router to Server 1 {https://external-address-or-domainName-for-server-2.com:465/ApplicationOne} and open the port on Server 1 external-address-or-domainName-for-server-2.com:465/ApplicationOne
This way the external Server 2 is still communicating authentication with the federation server. just be sure to set the reply address in your claims to have the port number configured for Server 1 and the same certificate installed as on your Server 2 Server.

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