how to check whether port is open at client's pc?

stackoverflow.com - 2012-04-05 15:53:04 - Similar - Report/Block

I've got UDPserver which recieves messages from clients and sends response to them. But I need to check if UDPclients is online or not. With isReachable I can test whether pc online or not. But when differents clients use same pc but with differents ports how to check whether port is open or not(Client1 with port 5678 is online but client...

R - how to check socket server is open?

stackoverflow.com - 2012-04-09 10:36:38 - Similar - Report/Block

I start a socket server and a connection to that server using the following R code: library(svSocket) R server: socket <- startSocketServer(port=8888) R client: socketcon <- socketConnection(port=8888) I run a while(TRUE) loop in R client and would like to stop it if the socket in R server is closed by stopSocketServer(port = 8888...

multiple connections in UDP server

gamedev.net - 2012-08-19 19:20:13 - Similar - Report/Block

I've been searching a lot and found out that the server based on UDP should have only 1 socket that is doing all the job for every single client. And each client should have his own socket bound to unique port but can exist on the same ip? I'm trying to run a server and connect to it more than 1 client. 1 client connects normally but I ca...

How to open port 10011 in centos using iptables

stackoverflow.com - 2012-05-22 02:05:54 - Similar - Report/Block

I need to open port 10011 for an application called Teamspeak 3 to work. I'm using CentOS and i tried the following commands : sudo iptables -I INPUT -p tcp --dport 10011 -j ACCEPT i pressed enter, the console went to a new line, no errors, no output. still, when i use a website to check if that port is open, it's not opened. Is there any...

FTP upload file error code=425, message= Can't open data connection

stackoverflow.com - 2012-02-22 11:40:49 - Similar - Report/Block

I'm using ftp4j for FTP connection through applet to upload file. From server, I already open FTP site with port 27, targetURL = local IP address is 192.168.x.xxx, and grant access for user name FTPUser, password xxxx. FTPClient client = new FTPClient(); client.connect(targetURL, port); client.setType(client.TYPE_BINARY); client.login(use...

Android Emulator get port Number

stackoverflow.com - 2012-03-07 12:29:09 - Similar - Report/Block

The port for emulator 5554 is not working when I try to type the command: telnet localhost 5554 The error is: Connecting To localhost...Could not open connection to the host, on port 5554: Connect failed How could it connect to port 5554 to let the android emulator sending socket, and the android emulator program on client server side gi...

C++ linux detect all serial ports

stackoverflow.com - 2013-03-11 15:46:29 - Similar - Report/Block

Is there a good way of detecting all connected devices connected on serial ports on linux? Im programming in C++ but other examples are welcome as well. You can just try to open every port and when it succeeds you add it to the list of ports but this seems not a really good solution. You could go into the dev directors and since my serial...

port in URL constructor

stackoverflow.com - 2012-07-05 08:07:04 - Similar - Report/Block

i want to check that which port is used , when the port is not explicitly specified in the URL constuctor. SO here is a code. URL url = new URL("http://www.ietf.org/rfc/rfc2396.txt "); System.out.println("URL :"+url.getPort()); getPort() returns -1. It indicates that i have not set the port thats why grtPort() had returend the -1 value.

Script to open port in squid-std.conf file

stackoverflow.com - 2012-08-23 17:36:00 - Similar - Report/Block

I am tring to create a script that can add a port configuration line to the squid-std.conf file. My script requires two parameters, the first being http or https and then the second parameter would be the port number. My logic so far in pseudo code: Make sure there are two parameters. Make sure is either http or https. Make sure is a...

SerialPort access denied after a while

stackoverflow.com - 2012-03-17 12:20:20 - Similar - Report/Block

I have a FEZ Board (I don't think this matters) and I'm communicating with it through a serial port. I made a WPF application, where I open the COM port and write data over it. This all works great, but after sending data a random amount of times (sometimes 3, sometimes 4) I get an exception saying "A device attached to the system is not...

Is it possible to run a socket server and socket client on the same machine?

stackoverflow.com - 2012-04-09 06:58:17 - Similar - Report/Block

In java it is possible to create a socket server and a socket client, is it possible to have an instance of the socket server running and a socket/server client that is receiving data from the socket server on the same machine? e.g the socket server runs on port 60010 and the socket client is running on the same machine connecting to that...

Cocos2d-x for Windows Phone 8 is out

cocos2d-iphone.org - 2012-10-31 16:46:25 - Similar - Report/Block

With the launch of Windows Phone 8, Microsoft Open Technologies Inc pushed hard to get this port out, which is branched off from Cocos2d-x for Windows 8 metro. Now you can get your game onto Windows Phone 8 before anybody else! It has the same API set as Cocos2d-x C++ so porting your game is a breeze, and of course as always, it is licens...

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Network Demo in WTK 2.5.2 client-server connection is not working on remote hosts

stackoverflow.com - 2011-06-20 09:31:53 - Similar - Report/Block

When I run client and server locally I am able to receive messages but when I run the server emulator on and client emulator on different machine, the client emulator is not able to connect and send messages to the server. I have made only one change in the client code in network demo that is instead of localhost i put the ip...

Netty is giving me a wrong port using TCP

stackoverflow.com - 2012-06-01 17:05:58 - Similar - Report/Block

I'm using Netty with Java trying to configure a TCP client. Everything is working so far, except that I'm connecting on port 1050 but when I call messageEvent.getRemoteAddress() on messageReceived() method of the handler, I'm getting the port 1500. I changed the port to 1049 but I'm still receiving 1500. This is Netty's problem or can it...

Check if a remote port is UP(listening) on UDP?

stackoverflow.com - 2013-04-25 14:10:36 - Similar - Report/Block

I've to detect if a remote host is UP, based on it's a service(IP+Port) running. I can't use a ping because we need to make it works even the ICMP port is blocked. Sometime the service is using TCP, sometimes UDP(but when I've to check, I know if the server has to run on UDP or TCP, it's depending of it's type). I've no issue checking the...

how to open com port 1 to 4 windows 7 starter

sevenforums.com - 2013-05-10 13:50:02 - Similar - Report/Block

hi, how do I open com port 1 , its windows 7 starter which is different from windows 7, im trying to use a lead that plugs into my usb but it says "com port 1 does not exist" "interface not found" , i got it working before but cant remember how to do it, when opening device manager theres no options for com ports like on widows 7. please...

Glassfish 3.1 Remote client connecting to JMS queue in cluster

stackoverflow.com - 2012-07-30 21:23:05 - Similar - Report/Block

Glassfish 3.1.2 Ubuntu 12.04 I've created a cluster of two nodes and have a JMS queue. I'm having issues trying to connect to this JMS queue using a remote standalone client. The cluster JMS listener is on port 27676 and the queue is deployed to the cluster. mq://Glassfish2:27676/,mq://Glassfish3:2 7676 When I connect using the code I'd us...

John Cleese Live Comedy Show coming to SA in June

ps3za.co.za - 2013-02-15 08:57:22 - Similar - Report/Block

Feather Market Centre, Port Elizabeth - Eastern Cape Sat 15 Jun 13 8:00 PM (Open) Sun 16 Jun 13 5:00 PM (Open) C T I C C, Auditorium 1, Cape Town - Western Cape Tue 18 Jun 13 8:00 PM (Open) Wed 19 Jun 13 8:00 PM (Open) Teatro At Montecasino, Johannesburg And Reef - Gauteng Fri 21 Jun 13 8:00 PM (Open) Sat 22 Jun 13 8:00 PM (Open) Sun 23 J...

Google Brings Quickoffice to Chrome Browser with Native Client

hothardware.com - 2013-02-27 16:23:51 - Similar - Report/Block

When Google launched its Chromebook Pixel the other day, the search giant also announced it plans to port part of Quickoffice to its Chrome browser using Native Client. If you're not familiar, Native Client is a sandbox technology that allows web-based applications to run at near-native speeds. Using Native Client, developers can port...

Install and connect Couchbase Client ASP.NET

stackoverflow.com - 2012-07-07 22:49:03 - Similar - Report/Block

I really cant connect my c# client with couchbase DB. I realy dont know what i do wrong.. Also why my server name is and whats what means? Server: Creating test db: Check firewall port: My web.config: And finally my C# code: Once again, what im doing wrong and what that server name means?...

port redirection

eightforums.com - 2013-04-30 15:54:56 - Similar - Report/Block

My ISP provides secure imap access to my email accounts hosted on their servers. Recently, my company blocked port 993 (imap ssl) - however, port 443 remains open (https). At my home router, I can forward port 443 to my Windows 8 64-bit machine. I'm looking for a program that will redirect traffic inbound on port 443, outbound on 993 to m...

Java Servlet Returns Remote Port of 0?

stackoverflow.com - 2012-04-15 19:27:57 - Similar - Report/Block

I'm using a servlet deployed on Google AppEngine to respond with the client's remote port number. HttpServletRequest.getRemoteAddr() works fine, but getRemotePort() returns 0? Port 0 isn't valid. I've tried other IP services that told me normal port numbers (i.e. 55046 or something) but my servlet returns 0 every time it is accessed from...

HTTP Port question

acurazine.com - 2013-04-08 15:29:18 - Similar - Report/Block

OK, so I have a camera DVR that can be accessed remotely via HTTP. Default is port 80 (duh), but that doesn't work since I forward port 80 and 443 to my web server. So I changed it to port 81. Problem is, my company confines all HTTP traffic to either 80 and 443 (I think). 81 gives me a refused connection, but I know the DVR is accessible...

c'ant save my port on my router

guru3d.com - 2013-05-08 21:31:59 - Similar - Report/Block

hey guys i have a D-link 2730 u when i open port's for some games they are saved but next time if I restart my router ore my conex is down the router automatically clean all the port's so i need to enter those port again :/ is there any tips that save those port's all the time ?...

CCTV dvr. Net Suveillance

techguy.org - 2013-05-24 02:56:52 - Similar - Report/Block

Hey Guys; I have a dilema and a problem that I am very frustrating trying to resolve. Ive just bought a dvr 8 cameras. I basically set up everything like this Att router to bridge - apple router to dhcp ppoe log in to att. then I add another apple router to expand the wireless as well connected to the cat5 to the cameras netwrok port so i...

how can a tcp socket read call never return

stackoverflow.com - 2013-02-27 12:58:07 - Similar - Report/Block

A client has reported an error I fail to comprehend. A TCP based client is connected to the server from which it receives data, rarely sending anything. Usually everything works fine, but once in a blue moon a situation like this occurs: server sends some data client receives the data client is processing the data ... and in the meantime...

Access Local Webpage from the Internet

stackoverflow.com - 2012-05-08 07:10:42 - Similar - Report/Block

There is a webpage at that I need to access from the Internet. I have already done the following: Forwarded port 80 in my Modem - Beetel 220 (NAT --> Virtual Servers) Forwarded port 80 in my Netgear Wireless Router Added the port to Zone in Bitdfender 2012 Tested the port is in OPEN Status Registered in no-ip.com Assi...

How to send Mail in asp.net from windows mail server

stackoverflow.com - 2013-05-05 16:06:52 - Similar - Report/Block

How to send mail from windows mail server using asp.net and c#. I have tried sending mail from gmail and other share hosting mail server and its works as expected But Now my requirement is sending mail from windows mail server.whenever i try to send mail it shows gives me error failure sending mail. SmtpClient client = new SmtpClient();...

Open Source SIP client for Iphone

stackoverflow.com - 2012-02-29 06:59:58 - Similar - Report/Block

I want to write a SIP clent in Xcode and want to make call using SIP. Where will I find open source SIP client for Iphone (objective c)?.

node.js: proxy websockets to other port

stackoverflow.com - 2013-02-25 10:20:56 - Similar - Report/Block

I have written http proxy in node.js running on port 80. All I need is to redirect socket.io traffic to port 9090 and standard http traffic to Apache on 8080. This is my proxy code: httpProxy = require('http-proxy'); httpProxy.createServer(function (req, res, proxy) { if (req.url.match(/socket.io/)) { proxy.proxyRequest(req, res, { hos...

Where are my redis clients being used?

stackoverflow.com - 2013-02-26 08:49:28 - Similar - Report/Block

I have a Rails 3 app hosted on heroku which at the moment has only one web and one worker dyno. I recently started using Redis as caching database too so I'm performing actions like this (using the redis-rb gem): redis = Redis.new(:host => host, :port => port, :password => password) redis.set("my_key", some_value) Now I'm getting the foll...

Asyncore TCP server, I not understand how connection close for client socket

stackoverflow.com - 2013-02-06 12:44:30 - Similar - Report/Block

I not understand how connection close for client socket. import asyncore import socket class TCPClientHandle(asyncore.dispatcher): def __init__(self, sock, server): asyncore.dispatcher.__init__(self, sock) self.server = server ..... def handle_close(self): print 'Client: handle_close' self.server.removeClient(self) class TCPServer(...

vb- networkstream write only returns first result (need all)

stackoverflow.com - 2012-03-19 14:40:59 - Similar - Report/Block

My code looks very similar to this post Read bytes from NetworkStream (Hangs) , which I copied below. // Create a TcpClient. // Note, for this client to work you need to have a TcpServer // connected to the same address as specified by the server, port // combination. TcpClient client = new TcpClient(s...

How many requests can handle a port at 'a' time

stackoverflow.com - 2012-02-29 12:10:54 - Similar - Report/Block

I am creating a web application having a login page , where number of users can tries to login at same time. so here I need to handle number of requests at a time. I know this is already implemented for number of popular sites like Gtalk. So I have some questions in my mind. "How many requests can a port handle at a time ?" For e.g . As...

Lenovo X220t GPS unit erricson f5521gw(software or faulty unit??)

sevenforums.com - 2013-04-30 23:59:59 - Similar - Report/Block

Hi. New laptop all original software. I launched Lenovo GPS only to receive the message: The GPS NMEA COM port is not available. You need to check the following things: - Another GPS application is using the COM port. - COM port is disabled. You can enable the COM port in Device Manager. All the firmware up to date all the drivers up to d...

Setting jax-ws property faultStackTraceEnabled and exceptionMessageCauseEnabled from java code when using CXF

stackoverflow.com - 2012-03-14 15:38:30 - Similar - Report/Block

To help troubleshoot a webservice, I would like to turn faultStackTraceEnabled and exceptionMessageCauseEnabled to true. It appears to be an endpoint setting that can be defined in the configuration XML https://cxf.apache.org/docs/jax-ws-confi guration.html . The only problem with that is that there is no configuration xml. The client wa...

Exception got while sending email

stackoverflow.com - 2012-07-22 01:57:22 - Similar - Report/Block

i copy that code MailMessage mail = new MailMessage(); mail.To.Add(model.To); mail.From = new MailAddress("sheikh.abm@gmail.com"); mail.Subject = model.Subject ; mail.Body = model.Message; mail.IsBodyHtml = true; SmtpClient client = new SmtpClient("localhost:"); client.UseDefaultCredentials = false; client.EnableSsl = true; clien...

Simple perl program failing to execute

stackoverflow.com - 2012-03-29 18:03:00 - Similar - Report/Block

Here is a sample that fails: #!/usr/bin/perl -w # client.pl #---------------- use strict; use Socket; # initialize host and port my $host = shift || 'localhost'; my $port = shift || 55555; my $server = ""; # create the socket, connect to the port socket(SOCKET,PF_INET,SOCK_STREAM,(getpr otobyname('tcp'))[2]) or die "Can't c...

Check before taking from a Java BlockingQueue

stackoverflow.com - 2013-02-26 04:01:31 - Similar - Report/Block

The problem I have is something like a single producer multiple consumer problem. Except the consumer are "different" and I need a way of "peek"ing on the new item (to check who its for) before taking it. The problem is actually a single server thread that serves multiple client threads. Client will request info, then server should reply...

Cloudstation - Changement De Port - Astuce

nas-forum.com - 2013-03-12 18:54:22 - Similar - Report/Block

Je viens de voir à l'instant sur le forum US, un truc qui semble fonctionner pour changer le port de cloudstation sans difficulté ! Hi everybody. TO change the port Cloudstation client uses you actually don't need to modify any conf or executable file, you only need to write the port you want to use when you connect the client. When you i...


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