Comment by Nasser Torabzade on How to open a port below 1024 in Cent OS for socket.io?
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port 843 was right port to listen, but apparently a firewall in client side was blocking that port. thanks for your help.
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Comment by Nasser Torabzade on How to open a port below 1024 in Cent OS for socket.io?
thanks, I updated my question.
How to open a port below 1024 in Cent OS for socket.io?
Salam (means Hello) :)
I'm trying to open port 843 in my Cent OS 5.2, I added following line to etc\sysconfig\iptables :
-A INPUT -p tcp --dport 843 -j ACCEPT
and then updated my iptables service. I need to listen to that port in my node.js application which is running by root user via sudo node index.js command, but I still get forbidden port error when I try establish a connection through that port.
this is what I get by running sudo iptables -L -v :
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
2811 238K ACCEPT tcp -- any any anywhere anywhere tcp dpt:http
112 6224 ACCEPT tcp -- any any anywhere anywhere tcp dpt:hbci
0 0 ACCEPT tcp -- any any anywhere anywhere tcp dpt:843
41 2124 ACCEPT tcp -- any any anywhere anywhere state NEW tcp multiport dports 5901:5903,6001:6003
13093 13M ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED
26 3584 ACCEPT icmp -- any any anywhere anywhere
0 0 ACCEPT all -- lo any anywhere anywhere
109 6404 ACCEPT tcp -- any any anywhere anywhere state NEW tcp dpt:ssh
888K 80M REJECT all -- any any anywhere anywhere
and this is outpou of sudo netstat -ptl | grep node:
tcp 0 0 *:843 *:* LISTEN 12927/node
tcp 0 0 *:http *:* LISTEN 12927/node
tcp 0 0 *:10843 *:* LISTEN 12927/node
and I try to listen to that port in socket.io with this code:
var io = require('socket.io').listen(
843,
{ log: false,
flashPolicyServer: true,
transports: ['websocket', 'flashsocket', 'htmlfile', 'xhr-multipart', 'xhr-polling', 'jsonp-polling']
}
);
io.sockets.on('connection', function(socket){
// my event listeners
});
Comment by Nasser Torabzade on Proper settings for socket.io flash (and other) fallbacks for clients using a proxy
but I've done that! as you can see in my question, the last field of
transport array is flashsocket. any other suggestion? Proper settings for socket.io flash (and other) fallbacks for clients using a proxy
Salam (means hello) :)
I have the following basic settings in my node.js application. But it doesn't work for clients who are connected using a proxy or are behind a firewall. I want to know what should I add to get socket.io fallback to work as expected:
Server side:
var io = require('socket.io').listen(3000, {
log: 3,
flashPolicyServer: true,
transports: ['htmlfile', 'xhr-polling', 'jsonp-polling', 'flashsocket']
});
io.sockets.on('connection', function(){
// my event handlers
});
Client side:
WEB_SOCKET_SWF_LOCATION = "oath/to/my/copy/of/WebSocketMain.swf";
var socket = io.connect('http://localhost:3000');
// my event handlers
Proper settings for socket.io flash (and other) fallbacks for clients using a proxy
Salam (means hello) :)
I have the following basic settings in my node.js application. But it doesn't work for clients who are connected using a proxy or are behind a firewall. I want to know what should I add to get socket.io fallback to work as expected:
Server side:
var io = require('socket.io').listen(3000, {
log: 3,
flashPolicyServer: true,
transports: ['htmlfile', 'xhr-polling', 'jsonp-polling', 'flashsocket']
});
io.sockets.on('connection', function(){
// my event handlers
});
Client side:
WEB_SOCKET_SWF_LOCATION = "oath/to/my/copy/of/WebSocketMain.swf";
var socket = io.connect('http://localhost:3000');
// my event handlers
Answer by Nasser Torabzade for Ajax with deeplink
Answer by Nasser Torabzade for Centering an image larger than browser window, which can then be used as a rollover image
You can set your image as a centered background of a div:
<!DOCTYPE html>
<head>
<style>
body{
overflow-x: hidden;
}
#bigImage{
background:url('sitewide.png') no-repeat top center;
width: 2880px;
height: 540px;
}
</style>
</head>
<body>
<div id="bigImage"></div>
</body>
</html>
Answer by Nasser Torabzade for Centering an image larger than browser window, which can then be used as a rollover image
You can set your image as a centered background of a div:
<!DOCTYPE html>
<head>
<style>
body{
overflow-x: hidden;
}
#bigImage{
background:url('sitewide.png') no-repeat top center;
width: 2880px;
height: 540px;
}
</style>
</head>
<body>
<div id="bigImage"></div>
</body>
</html>
Comment by Nasser Torabzade on Centering an image larger than browser window, which can then be used as a rollover image
@ZacharyShampine so the only thing I can think of is to set your image as background of a div, I updated my answer.
Comment by Nasser Torabzade on Centering an image larger than browser window, which can then be used as a rollover image
@ZacharyShampine you're welcome. just add a
text-align:center; to your css, it should work. I updated my answer. Answer by Nasser Torabzade for Centering an image larger than browser window, which can then be used as a rollover image
You can set your image as a centered background of a div:
<!DOCTYPE html>
<head>
<style>
body{
overflow-x: hidden;
}
#bigImage{
background:url('sitewide.png') no-repeat top center;
width: 2880px;
height: 540px;
}
</style>
</head>
<body>
<div id="bigImage"></div>
</body>
</html>
Answer by Nasser Torabzade for Stop browser from auto scrolling when searching document (ctrl + f)
No, you can not disable that.
you only can scroll to nearest slide on every scroll event.
// fill lidesTopOffsets array with top offsets
// of your slides when document is ready
var slidesTopOffsets = [100, 200, 300, 400, 500];
var minDifferecne = 10000;
$( window ).scroll(function() {
// find nearest slide
for(var i=0; i < slidesTopOffsets.length; i++){
if(Math.abs($(window).scrollTop() - slidesTopOffsets[i]) < minDifferecne)
minDifferecne = slidesTopOffsets[i];
}
// scroll to nearest slide
$(body).animate({
scrollTop: minDifferecne
}, 0);
});
hope that it helps.
Answer by Nasser Torabzade for Stop browser from auto scrolling when searching document (ctrl + f)
No, you can not disable that.
you only can scroll to nearest slide on every scroll event.
// fill lidesTopOffsets array with top offsets
// of your slides when document is ready
var slidesTopOffsets = [100, 200, 300, 400, 500];
var minDifferecne = 10000;
$( window ).scroll(function() {
// find nearest slide
for(var i=0; i < slidesTopOffsets.length; i++){
if(Math.abs($(window).scrollTop() - slidesTopOffsets[i]) < minDifferecne)
minDifferecne = slidesTopOffsets[i];
}
// scroll to nearest slide
$(body).animate({
scrollTop: minDifferecne
}, 0);
});
hope that it helps.
Answer by Nasser Torabzade for Stop browser from auto scrolling when searching document (ctrl + f)
No, you can not disable that.
you only can scroll to nearest slide on every scroll event.
// fill lidesTopOffsets array with top offsets
// of your slides when document is ready
var slidesTopOffsets = [100, 200, 300, 400, 500];
var minDifferecne = 10000;
$( window ).scroll(function() {
// find nearest slide
for(var i=0; i < slidesTopOffsets.length; i++){
if(Math.abs($(window).scrollTop() - slidesTopOffsets[i]) < minDifferecne)
minDifferecne = slidesTopOffsets[i];
}
// scroll to nearest slide
$(body).animate({
scrollTop: minDifferecne
}, 0);
});
hope that it helps.