红est错误：地址已在使用中（dotnet核心）

简介：它可以作为dotnet run，但不能作为dotnet myappname.dll。

我的Linux技能是有限的，但是我想按照本书学习，所以我不会混淆（遵循Scott Hanselman的本教程）：

$ cd /home/myusername/dotnettest
$ dotnet run

现在监听：http：// localhost：5123

然后像这样将其移动到/ var：

$ sudo cp -a /home/myusername/dotnettest/bin/Debug/netcoreapp1.1/publish /var/dotnettest

最后，我测试它是否也可以正常工作：

$ dotnet dotnettest.dll

然后失败：

info: Microsoft.Extensions.DependencyInjection.DataProtectionServices[0]
      User profile is available. Using '/home/myusername/.aspnet/DataProtection-Keys' as key repository; keys will not be encrypted at rest.

Unhandled Exception: System.AggregateException: One or more errors occurred. (Error -98 EADDRINUSE address already in use) ---> Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.UvException: Error -98 EADDRINUSE address already in use
   at Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.Libuv.Check(Int32 statusCode)
   at Microsoft.AspNetCore.Server.Kestrel.Internal.Networking.UvTcpHandle.GetSockIPEndPoint()
   at Microsoft.AspNetCore.Server.Kestrel.Internal.Http.TcpListener.CreateListenSocket()
   at Microsoft.AspNetCore.Server.Kestrel.Internal.Http.Listener.<>c.b__6_0(Object state)
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at Microsoft.AspNetCore.Server.Kestrel.Internal.KestrelEngine.CreateServer(ServerAddress address)
   at Microsoft.AspNetCore.Server.Kestrel.KestrelServer.Start[TContext](IHttpApplication`1 application)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost.Start()
   at Microsoft.AspNetCore.Hosting.WebHostExtensions.Run(IWebHost host, CancellationToken token, String shutdownMessage)
   at Microsoft.AspNetCore.Hosting.WebHostExtensions.Run(IWebHost host)
   at WebApplication.Program.Main(String[] args) in /home/myusername/dotnettest/Program.cs:line 27
Aborted (core dumped)

我在尝试停止nginx时非常小心。

我检查了是否有任何命令正在监听：5123：

$ lsof -i tcp:5123

而且似乎什么也没发生。

以下命令有助于找到端口并终止进程

Mac上的终端

查找过程号

lsof -i: 

例如lsof -i：5001

然后杀死进程号

kill -9 

例如-杀死-9 1600