什么是“错误：收听EACCES 0.0.0.0:7090”？

Question

I'm doing to run nodejs server on windows server 2012. App port is 7090. This is part of the server.js file:

var port    = process.env.PORT || 7090;
app.listen(port, function() {
  console.log('Listening on port ' + port);
});

When I run it with node server.js ,I get this error:

Error: listen EACCES 0.0.0.0:7090
    at Object.exports._errnoException (util.js:1008:11)
    at exports._exceptionWithHostPort (util.js:1031:20)
    at Server._listen2 (net.js:1240:19)
    at listen (net.js:1289:10)
    at Server.listen (net.js:1385:5)
    at EventEmitter.listen (D:\STH\node_modules\express\lib\application.js:617:24)
    at Object.<anonymous> (D:\STH\app.js:26:5)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:458:32)

​It works when I change port to any other numbers except 7090.

Error: listen EACCES 0.0.0.0:7090 I know already, that the Error EACCES means that i don't have access rights to the port 7090 according to this question, but i don't know how to fix this. Any help much appreciated!

Answer 1

this means that something else (probably your app) is already running on that port. Maybe you run it in background or as another user and can't restore it right now. You can look up who is using the port by using netstat on windows server: https://technet.microsoft.com/en-us/library/ff961504(v=ws.11).aspx

Answer 2

lsof -i:7090

然后找到PID

kill -9 PID

Answer 3

Issue fixed! That port is already listening by IISNode unexpectedly. I just deleted it and now ok to run on port 7090.

Answer 4

当我尝试在服务器上运行节点应用程序时，我遇到了同样的问题，但幸运的是，经过很少的搜索后，我找到了解决方案。我以超级用户的身份使用了节点命令，这很简单，我知道发问者会得到答案，但希望这样做对其他人会有帮助。

sudo node your_app_name.js