I trying to view a static html page at localhost, but get the following error message:
events.js:72
throw er; // Unhandled 'error' event
^
Error: listen EACCES
at errnoException (net.js:901:11)
at Server._listen2 (net.js:1020:19)
at listen (net.js:1061:10)
at Server.listen (net.js:1135:5)
at Function.app.listen (/home/phil/xProgramming/AngJS/Project/node_modules/express/lib/application.js:536:24)
at Object.<anonymous> (/home/phil/xProgramming/AngJS/Project/server.js:6:5)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
I've tried killall, but I still get the same error message.
I new to Linux and am using Ubuntu 14.04
The EACCES error normally means that you are trying to bind to a port and failing. This is probably because you are trying to bind to port 80 without root permissions. Try running node with root permissions and it should work.
sudo node server.js
or
sudo nodejs server.js
Depending on how you have Ubuntu setup.
If this is a development environment instead of running as root you should use a port greater than 1024. Typically you will find people using port 3000 for node though 8000 and 8080 are also used. Here is how I normally do this when using Express.
var port = process.env.PORT || 3000;
app.listen(port, function() {
console.log("Listening on " + port);
});
Related
Normally in app.js i use this code on port 3000 it's work good (on my-domain.com:3000).
.
http.listen(3000, function(){
console.log('start server on port :3000');
});
then i want to use on https, so i change app.js to
http.listen(443, function(){
console.log('start server on port :443');
});
When run node app.js , it's show error
events.js:160
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE :::443
at Object.exports._errnoException (util.js:1012:11)
at exports._exceptionWithHostPort (util.js:1035:20)
at Server._listen2 (net.js:1252:14)
at listen (net.js:1288:10)
at Server.listen (net.js:1384:5)
at Object.<anonymous> (/home/admin/web/my-domain.com/public_html/app.js:28:6)
at Module._compile (module.js:541:32)
at Object.Module._extensions..js (module.js:550:10)
at Module.load (module.js:458:32)
at tryModuleLoad (module.js:417:12)
Normally i have to access to my-domain.com:3000 for user chat. So i want to know how can i access to https://www.my-domain.com for user chat ?
You have the following error message:
Error: listen EADDRINUSE :::443
[...]
This message means that the port 443 is currently in use by some process.
You can check which process is actually using the said port by executing one of the many tools for network checking (such as netstat for Windows, lsof or netstat on Linux).
Refer to the manual for those tools to achieve the correct result, based upon your operating system.
I have a socket.io node file that starts like this...
//sockets/server
var app = require('http').createServer(handler)
var io = require('socket.io')(app);
var fs = require('fs');
app.listen(80); //the 5th line that the error refers to
When I run from the console with "node myFile.js" I get the following error...
events.js:85
throw er; // Unhandled 'error' event
^
Error: listen EACCES
at exports._errnoException (util.js:746:11)
at Server._listen2 (net.js:1112:19)
at listen (net.js:1155:10)
at Server.listen (net.js:1240:5)
at Object.<anonymous> (/home/myUser/node/myFile.js:5:5)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)
at Module.load (module.js:355:32)
at Function.Module._load (module.js:310:12)
at Function.Module.runMain (module.js:501:10)
I can easily get around the error on my local machine (MAMP) by adding 'sudo' to the start of the command, but my hosting provider won't let me do that on the production environment.
Does anyone have any idea of a way to fix the error (or even know what it means) as opposed to sudoing it out of the way?
Port 80 is a privileged port, and you need root or CAP_NET_ADMIN to bind to it.
The solutions are:
Do not bind to port 80 for development.
Configure your system to allow the port to be used as a normal user. See: https://superuser.com/questions/710253/allow-non-root-process-to-bind-to-port-80-and-443
I am new to this whole npm node concept and currently on learning phase. I am trying to resolve an error that is not letting me perform the Event router for my web application in node. Here is the error below and do let me know what is the problem or issue and what steps to take to resolve it.
Important: use process.env.PORT as the port and process.env.IP as the host in your scripts!
Debugger listening on port 15454
events.js:141
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE :::8080
at Object.exports._errnoException (util.js:907:11)
at exports._exceptionWithHostPort (util.js:930:20)
at Server._listen2 (net.js:1250:14)
at listen (net.js:1286:10)
at Server.listen (net.js:1382:5)
at EventEmitter.listen (/home/ubuntu/workspace/nodeproject/node_modules/express/lib/application.js:617:24)
at Object.<anonymous> (/home/ubuntu/workspace/nodeproject/app.js:55:5)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
Error: listen EADDRINUSE :::8080
Some other process is already listening on port 8080. Either stop that process or change the port of the ember app.
Why do I get an error on my Amazon server when running my NodeJS app?
sudo node app.js
Error: listen EADDRINUSE
at errnoException (net.js:904:11)
at Server._listen2 (net.js:1042:14)
at listen (net.js:1064:10)
at Server.listen (net.js:1138:5)
at Object.<anonymous> (/home/ubuntu/www/app.js:65:38)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
Here is my code:
var app = express();
var server = http.createServer(app).listen(4000, function() {
console.log('Express HTTP server listening on port ' + app.get('port'));
});
https.createServer(credentials, app).listen(443, function() {
console.log('Express HTTPS server listening on port 443');
});
I think the problem is the 443 because when I delete the https.createServer "listen()" connection then everything works fine.
Thanks for your attention :)
You probably have another process running that's using this port (probably another instance of your app.
Use ps aux to see your running processes.
Use lsof -i | grep 4000 to see what's using this port.
Writing a test application in Node.js running on OpenShift and it currently will not start.
This is my code:
#!/bin/env node
var http = require('http');
var ip = process.env.OPENSHIFT_NODEJS_IP;
var port = process.env.OPENSHIFT_NODEJS_PORT;
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(ip, port);
console.log('Server running');
I get the error
events.js:72
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE
at errnoException (net.js:884:11)
at Server._listen2 (net.js:1003:19)
at listen (net.js:1044:10)
at Server.listen (net.js:1104:5)
at Object.<anonymous> (/var/lib/openshift/52854c6f4382ec071400051d/app-root/runtime/repo/server.js:11:4)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
DEBUG: Program node server.js exited with code 8
Which seems to mean I can't bind to the port. I've found various information on why this might be but none of it seems relevant - it all seems related to permissions but surely the point of process.env.OPENSHIFT_NODEJS_* is I have permission to bind to it?
It means some other process is using your port process.env.OPENSHIFT_NODEJS_PORT. EACCESS would mean permission denied, not EADDRINUSE. Try changing to unused ports like 8080. You can check used ports with :
netstat -tulpn
netstat -tulpn | grep :$OPENSHIFT_NODEJS_PORT //filter by your port