I've been experimenting with Node.js on my windows machine and also my linux machine to create a web server using node.
If I try my code on windows and activate my server with "node server.js" and navigate to localhost:8080 I am met with "Hello World!" as intended.
But if I try on my linux box with the same code it shows me the directory instead of serving the page. Not sure what's going on here!
Here's the code I've been using
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(8080, 'localhost');
console.log('Server running at http://localhost:8080/');
I've tried using my local ip to the machine and also using the domain followed by ":8080", both give me the same results.
I cant find anybody else with the same problem and I've been looking for hours.
I got the same issue while manually starting server from windows machine.
using command http-server -p 4200
Say, I was trying to start the server from D:/ProjectName. When I changed that and started from D:/ProjectName/build, it was working fine. Build folder has the index file and all other files.
Related
I'm trying to learn node js. I have a basic "hello world" running on localhost with this code :
require('http').createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');}).listen(1337, "127.0.0.1");
Now I'm trying to deploy it on a server I got from someone to fiddle around on with node.js installed on.
How do I get "hello world" to appear on my page: thomas.sitestatus.nl? I have checked multiple tutorials and I still haven't find a solution.
Here is some basic steps you can follow to run your application on the server.
1) Copy your project to the server. Install npm modules if needed.
2) Then start the application on some port like 3000 (Later you can use nginx to map it to port 80)
3) After that when you enter thomas.sitestatus.nl:3000 in your browser, you will see "Hello World". If you configure nginx, entering thomas.sitestatus.nl will show "Hello World".
Feel free to ask if you have doubts or questions.
I'm trying to open a port on particular lamp server hosted by Google and I'm in connection with the server via ssh.
I've followed this link to configure nvm and the latest Node JS(v0.12.5) on it. After installing, I've used this demo code in "server.js" file and using the command "node server.js", it looks like Node JS is running, giving this message "Server ready" at the server console. Now the problem is that when I check for the open port using "netstat -n", I dont see any 1337 port open, which it should be. I've also tried to connect through browser using "serverIPaddress:1337", but I get "Conecting..." message and then nothing happens.
Any idea where I'm messing up??
I'm also confused with the server IP address(localhost:127.0.0.1) or (globalIPaddress) to put in the server.js file.
P.S: Please find the server.js file script below.
var http = require('http');
http.createServer(function(req, res) {
res.writeHead(200, {
'Content-Type': 'text/plain'
});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server ready');
Try removing '127.0.0.1' or change it to 0.0.0.0 - to listen on all interfaces.
See documentation for details
https://nodejs.org/api/http.html#http_server_listen_port_hostname_backlog_callback
With current settings the server accepts connection only from localhost.
Also you need to tune firewall to open the 1337 port on remote server
You have two problems:
1) "127,0,0,1" means "localhost" - it is NOT appropriate if you want remote clients to connect.
2) port 1337 may (or may not) be open through a firewall. It sounds like it isn't.
SUGGESTED CHANGE:
var http = require('http');
http.createServer(function(req, res) {
res.writeHead(200, {
'Content-Type': 'text/plain'
});
res.end('Hello World\n');
}).listen(80);
console.log('Server ready');
This is assuming that your remote server doesn't have some OTHER web server already bound to port 80. If your revised program dies with a "port in use" error, then try port 8080. Or port 8888.
Just put port number to listen on rather than using both port number and ip-adress
var http = require('http');
http.createServer(function(req, res) {
res.writeHead(200, {
'Content-Type': 'text/plain'
});
res.end('Hello World\n');
}).listen(1337);
console.log('Server ready');
if you want to use ip adress than the server will be accessible only from local with url 127.0.0.1:1337 you will not be able to access it with localhost:1337
Yes, I've tried several times to send to the server, but sometimes it doesn't work - If you use :
"lsof -P -iTCP | grep LISTEN"
you could check the process in -bash.
And then determinate how many ports are working. You can kill the process using :
"kill -9 process_id".
"port in use" means that port is being used by other applications or program is running on it.
Like example:
iTunes some times don't let you send in the same port.
For that is better Quit the app and try to send it later.
I'm trying to build a Node.JS server to listen on port 3800 of my CentOS server this way:
var app = require('express')();
var http = require('http').Server(app);
app.get('/', function(req, res){
res.send('<h1>Hello World!</h1>');
});
http.listen(3800, function(){
console.log('Listening on port: 3800');
});
I have a domain and I configured this domain on my apache server with virtual host to listen on port 80. But when I try to access
http://example.com:3800 or http://server_ip:3800
it's not working. The browsers keeps trying to connect and then I got the error.
I don't know what I did wrong, since I followed the tutorial. I searched other questions here, I tried to copy the code into my index.js and nothing. This simple "Hello World" is not showing and I can't access the server.
I did the "node index.js" and on my server is showing "Listening on port: 3800" perfectly, I have root access and I did everything with the root user. I did the "npm install express" and "npm install socket.io" commands too, and I tried to make the package.json file and then "npm install". I searched another website and I tried their instructions with "npm install --save: express", won't work too.
I think it's a problem with my Linux configuration.
My question is: how I can make this simple script work when I access http://example.com:3800?
The correct answer to my question is to open the port at the iptables using this command:
iptables -I INPUT -p tcp --dport 3800 -j ACCEPT
And then saving it with the command:
/sbin/service iptables save
CentOS6 based system.
Your actual example will work going to localhost:3800
Im not sure how is that of running nodejs in an apache server :/
if it helps, I normally do it slightly different than your code:
var app = require('express');
var http = require('http');
app.get('/', function(req, res){
res.send('<h1>Hello World!</h1>');
});
app.listen(3800, function(){
console.log('Listening on port: 3800');
});
EDIT-------------------------------
Your main issue here is that you are trying to use nodejs in Apache as I mention above, is not impossible but im sure is a pain to configure your server, and will not be the normal LAMP stack configuration, and you will probably run in some kind of bugs or cutted functionalitys, try to host your app in a node backend, something like openshift or heroku
I have installed node.js from here http://nodejs.org/ . in my windows8 machine. copied the example server code in my server.js file
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
then opened the node.js prompt and written node c:/node/server.js
but nothing happens.
I am a php developer just trying hands on it, any guidelines will really be helpful.
You don't need to go in node.js prompt, you just need to use standard command promt and write
node c:/node/server.js
this also works:
node c:\node\server.js
and then in your browser:
http://localhost:1337
Nodejs is a scripting language (like Python or Ruby, and unlike PHP or C++). To run your code, you need to enter a command in the terminal / shell / command prompt. Look for an application shortcut in your operating system by one of those names.
The command to run in the terminal will be
node server.js
But you will first need to browse in the terminal to the same folder as the file server.js. The syntax for using the terminal varies by operating system, look for its documentation.
I open a text editor, in my case I used Atom. Paste this code
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');
and save as
helloworld.js
in
c:\xampp\htdocs\myproject
directory.
Next I open node.js commamd prompt enter
cd c:\xampp\htdocs\myproject
next
node helloworld.js
next I open my chrome browser and I type
http://localhost:1337
and there it is.
Just go on that directory of your JS file from cmd and write node jsFile.js or even node jsFile; both will work fine.
Just try
node server
from cmd prompt in that directory
If you are in a Linux container, such as on a Chromebook, you will need to manually browse to your localhost's address. I am aware the newer Chrome OS versions no longer have this problem, but on my Chromebook, I still had to manually browse to the localhost's address for your code to work.
To browse to your locahost's address, type this in command line:
sudo ifconfig
and note the inet address under eth0.
Otherwise, as others have noted, simply type node.js filename and it will work as long as you point the browser to the proper address.
Hope this helps!
I am trying to learn node.js, but I'm having trouble getting the simple server to run on localhost:8888.
Here is the code for server.js:
var http = require("http");
http.createServer(function(request, response) {
response.writeHead(200, {"Content-Type": "text/plain"});
response.write("Hello World");
response.end();
}).listen(8888);
server.js runs without errors, and trying netstat -an | grep 8888 from terminal returns
tcp4 0 0 *.8888 *.* LISTEN
However, when I go to localhost:8888 in a browser, it says that it cannot be found.
I've looked at all the related questions, and nothing has worked so far. I've tried different ports, etc. I know that my router blocks incoming traffic on port 8888, but shouldn't that not matter if I'm trying to access it locally? I've run tomcat servers on this port before, for example. Thanks so much for your help!
node.js version: v0.6.15
OS: Mac OS 10.6.8
This code works--I just tried it and navigated to localhost:8888 and saw the expected output.
It's possible that you have a firewall that's too restrictive or you have a bad install of Node.js.