Send Tcp / Ip Request Over The Net From One Computer To Another
Sep 2, 2009
I'm working on a tcp/ip project for the company i working for, with another company, we are building the server side and they're building the client side. while can send thousands of tcp/ip request over the net from one computer to another and my server can handle them very easily, from some reason when the company we are work with send a single tcp/ip request to my server with their client application, my server do get the request correctly and handle it very well BUT, after one request my server takes 25% of the cpu usage, after 3-4 requests the server takes 100% of the cpu usage,
Im trying to send data from a Windows Form to an aspx page and send back a response. Im running around in circles trying to make this work. The data im trying to send is 4 strings. So fare I have this in my code, using the build-in webclient in visual studio 2010, in the windows form sending to the aspx
i have a task to create a TCP Server (a program that is listening on its network card interfaces for incoming data stream).I have search on the internet and i found that i can use two methods : Socket or TCPListener class.I have created an example for Socket class, but i wondering how could i test it? I need to check that if another computer in the network send some string data to the listener computer , then this message should be displayed.Here is the example from microsoft that i am using for TCP Server using Socket:
Public Shared Sub Main() ' Data buffer for incoming data. Dim data = nothingc[code]....
But it does not work because of the PORT setting.If in the TCP Server i have "Dim localEndPoint As New IPEndPoint(ipAddress, 0)" the client crashes, but if i change the port from any (0) to 11000 for example,the client works fine.Do you know why?
Later edit2:Maybe i should have started with this question:Which method is recommended for my scope?asynchronous or synchronous method ?
I want to be able to intercept a print request and then check whether the current user of the computer has enough credit to print. So once the request is intercepted i want to check the total number of pages requested and check against a database how many pages this user is allocated to print, if the total number to print exceeds the number in the database then cancel the print job and notify the user
I need to send a cookie along with every GET request in VB.NET? I already searched for codes but I can't find something that works for me. Can someone give me a simple code to do this?
I am developing an application in VS2008, SQL SERVER 2005 , VB Script .There is a portion where I need to send a request through API for a responce. It is working , the response is coming as JSON fomat.
I need the simplest way to change the JSON response to an array.as in PHP: json_decode($bad_json)
I have used Newtonsoft.Json but did not help. Throws exception while runtime.
Anything else what to do. Kindly help me. I can explain more if its not clear.
i hav got a problemo with my client/server application that i created in vb.net.Actually i want to add a "Refresh button" at the client side such that when it is pressed some specific lines should be executed at the server side.(e.g. when the "refresh button" is pressed at the client side, the server should evaluate some variable "data" and executes this line "winsock.sendData(data)" )
I am trying to send a POST request to add some content to an API box. The rules are that the body format should be XML(values must be XML-escaped), HTTP Method (post), requires authentication(yes), request content(content-type: "application/xml". [code] Best practice is to incrementally add and remove changes to your entry list instead of deleting/recreating the entire list each time a change is necessary.New entries are placed at the top of the queue for polling and are processed in a LIFO manner.
I have two web servers with public IPs, for example Server1 with IP 111.111.111.111 and Server2 with IP 222.222.222.222. see the picture:
There is an asp.net webform at Server 1. My intention is:
For every http request to that webform in Server1, the Server1 just pass the request's information to Server2 for logic processing and subsequently Server2 sends the response back to client (i.e. normal browser)
My questions are:
What information that Server1 needs to pass to Server2, so that Server2 able to send response back to client? note that at Server2, there is a TcpListener instance. This TcpListener instance acting as receiver for that webform request information from Server1. What is the suitable object (i.e. the class in System.Net or related namespace such as System.Net.Sockets) at Server2 for sending response back to client? Suitable here means able to meet my intention.
I have an existing WSDL which returns information to remote devices using SOAP. However, I'm writing a new app with Android which doesn't support SOAP so I can't use the existing WSDL and have had to code a new app which looks for a querystring from the Android app and returns the data in a JSON packet. I've coded the module which receives the data okay but I'm unsure how to send the data back in JSON forma
How to find the best way to develop a way to send a meeting request with a .Net application. I'm beginning in .Net development. The thing I'd like : the user has a form where that he can fullfill with the info about the meeting. Then, the server creates a .ics file with those information. I'd like next to suggest the user to send this meeting request. So, is it possible to create a mailto with an attachement that's located on my server? Is it the best way to handle this problem? Ain't there any other possibility to interact between an app and Outlook? I'm developping in VB.Net for a web application using the framework ASP.NET MVC 3.
I'm trying to send a HTTP request to a servers interface.But I'm really confused about how to specify the parameters I want to send to the servers interface method. What I've done so far.My server interface only accepts POST requests, that's why I'm using POST and asked if something is wrong with the way I use the parameters.
Dim parameters As String = "?text=test&type=person" Dim buffer As Byte() = Encoding.UTF8.GetBytes(parameters) Dim WebReq As HttpWebRequest = CType(WebRequest.Create(NameRecPage), HttpWebRequest) 'NameRecPage is the url
[code]....
Are these spellings correct in my content? What is content type about? What does it say and how do I determine which value to put in there?I don't know if thats the correct value for ContentType, actually I just want to receive some JSON fromatted data returned as string.
I have used the WinHttp.WinHttpRequest object in VB6 to make HTTP POST requests many times. It works great: .Open the URL, then .SetRequestHeader (however many are needed) and then .Send the body. The .Send method makes the actual connection and sends everything to the server at once.How to I emulate this behavior in .NET? The examples I've tried with System.Net.HttpWebRequest open a stream with .GetRequestStream() and then write the body to the stream. Unfortunately, the server is responding immediately to the .GetRequestStream method and therefore never sees the POST body.I am obviously trying to connect up some legacy stuff here, but am having a hard time Googling the problem or finding another approach in .NET.
When you search on google most of the examples are very vague, hopefully this thread can make it to the top and will help someone looking for the same info.to explain the code what it does is create a long string by concatenating all the values together stores it in the variable finalString and then hashes the string using the SHA5 algorithm. Then its supposed to send the string (finalString) as a post request to the url.The server im sending it to reads it this way and sends a response. [code]
I need to handle a soap request and send a response in a single string. My response is going well but I can not see a request string in my log file thought protocol analyzer can see it properly.
I would like to know how HttpWebRequest and HttpWebResponse works. How would I send a login request to a website and then find out if it worked or not?
I am trying to send an HTTP Request to a server using a POST method. The problem comes from the PostData, which needs to be in Bytes form to be used by the UploadData function.
I am using a client.openRead to send request and passing line through finalurl.
Dim data As Stream = client.OpenRead(finalurl)
Now my server blocks ports and i am getting error on this line now is there any other solution to client.OpenRead and what ever i am sending throught this is code is going on other company's server so i can't tell then to change their way so is there any other solution to this?
I AM THINKING THAT IF PORTS THEN IMPOSSIBLE TO SEND REQUEST.SO ONLY WAY IS TO CHANTGE SERVER WHER I HOST MY SITE
Dim data As Stream = client.OpenRead(finalurl)
And in final url i have other sites url and some querystring data
For example
dim finalurl as string= [url]
I already use WebHttpRequest but it not works still server not allow it.But i try it with response.redirect and it works but not suiteable to my conditions.i want control on my site so i was using Dim data As Stream = client.OpenRead(finalurl) but now server block some ports due to some reasons
I need a code that will let me send string or text to the same application running on a different computer ? im completely new to sending and recieving information in an application.
i've been wanting to do this for a few years now and it amazes me that no one can come up with a solution.i want to write a program (preferably in vb.net) that can send a message to another computer (or device) that is connected to the same network as me. I want the message to appear on the other computer (or device) in a popup message box. Also, it would be ideal if this could be done through some sort of bluetooth connection, if not then local ip connection will do. I don't know how i would go about doing this but i know it's possible because i've seen some programs do it... in fact i've seen a program called blackrain that without any additional software installed, can display messages on an ipod touch screen to instruct the yser what to do, and then display the results from their input on the computer screen, almost instantly. I would like to know how that works as well if anyone has any thoughts please feel free to share them!
to do a program that can send a message in other computerthru LaN or Computer NetworkExample im in Server and i will send it is \PC-01here is the picture i design it but i don't know the code
I wrote program that will send keystrokes to a computer if a button is pressed. The button is wired to a db9 connector and plugged into the pc. The program works, except I can not figure out how to detect if the cable gets unplugged. I am monitoring the CD pin change event to send keystrokes, but if the cable is not plugged in then I need it to send a messagebox.
