dotnet / dotnet/aspnetcore

Dynamic ports via code in runtime.

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#52,244 7 comments 0 reactions 0 assignees View on GitHub
api-suggestion area-networking feature-kestrel
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C#
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Description

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Is your feature request related to a problem? Please describe the problem.

In connection with YARP i need to ability to open/close ports in runtime via code.
Issue that i have custom handlers for ListenAnyIP.
I do
```cs
builder.WebHost.UseKestrel(options =>
{
options.ListenAnyIP(80, lo => {...});
options.ListenAnyIP(443, lo => {...});
});
```
I found that this is possible via configuration, but that not compatible with manual settings for kestrel.

### Describe the solution you'd like

Something like request IListenManager from DI
then call
```cs
manager.StopListenAnyIP(80);
manager.StartListenAnyIP(80, (ListenOptions lo) => {...});//usual setup of port goes here
```
Something like this.

### Additional context

_No response_

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