Kestrel is a dependency package of the ASP.NET Core web project, and is installed by the NuGet Package Manager. .NET Core CLI (dotnet.exe) will be installed when you install .NET Core on your computer.
dotnet.exe is the starter of any .NET Core application on any platform, such as Windows, Linux, or macOS.
Let's create a new ASP.NET Core Web Application and launch the application by excuting the following command:
dotnet new web
Example project can be found at: https://github.com/polatengin/B05277/tree/master/Chapter19/2-HostingKestrel.
