TCPListener Website Server?
Aug 18, 2009
I have just created a website server with Visual Basic 2008. I want my server to have the famous "resume donwload" function... but i dont know how the HTMLHeader should look like when its resuming a download.
Here is how the header normaly looks:
HTMLHeader = _
"HTTP/1.0 200 OK" & ControlChars.CrLf & _
"Server: Website Server " & My.Application.Info.Version.ToString & ControlChars.CrLf & _
"Content-Length: " & GetFileSize & ControlChars.CrLf & _
"Content-Type: " & GetContentType(StringRequest) & _
ControlChars.CrLf & ControlChars.CrLf
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Mar 11, 2010
I am creating a simple program. (soon to be vastly complex) that is connecting to a server, and sending an authentication code to connect. I got the connection part, but what keeps breaking up is the method of authenticating. I have the entire authentication process in a while loop, so that it will keep going until it receives the authentication reply from the server (an OK-002938, or what ever client number the server decides.
This is my client code for the event:
Private Sub CONNECTSERVER_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles CONNECTSERVER.DoWork
Try
If network_client.Connected = False Then
network_client.Client.Connect(My.Settings.service_address.ToString, My.Settings.service_port.ToString)
[Code] .....
The client side is flawless. But the server side, works, but it doesn't continue past storing the bytes into a container...
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Jun 21, 2011
Is that possible to create our own server using TcpListener class with IIS being uninstalled?
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Apr 3, 2009
I am trying to build a sort of basic server thing and I cannot seem to get the thing to work properly. I have a client and a server. The client sends a string, the server receives then replies. I cannot get the server to continue responding.
It works in one direction Client -> Server
But because the server is continuously listening the form becomes not responding, thus I cannot send messages from the server. Although it says that its not responding I know that it is just using all of the processing for listening because when I send something from the client the server responds, just the form is stuck because of the listener.
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Dec 3, 2011
i upload my asp.net project to my server i get the following error: Parser ErrorDescription: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'web1.WebForm1'. Source Error:
[Code]...
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Jul 8, 2009
Alright I am trying to upload a text file to my website server. What I have is quite simple but I am running into an error
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
My.Computer.Network.UploadFile("C:\Users\Admin\Documents\PCE\CurrentWorld.txt",
[Code].....
The problem I am having is this error: "The remote server returned an error: (550) File unavailable (e.g., file not found, no access)."
Web server is Linux I am running Vista-32
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Nov 24, 2010
I am Trying to add some information to a data base server, a person's ID, the experiment he is participating in, and the date of the experiment.This is my code:
SQLConnection1.ConnectionString = MyConn
Dim drNewRow As DataRow = DtsLabSystem1.tables("SubjectExperiment").NewRow
drNewRow("SubjectID") = lblSubjectID.Text
[code]....
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Jun 16, 2010
i have an application, that just connect a website through a proxy server.So i need to find out the proxy server type.Like SOCKS5, HTTP and Is there any way to find it out?
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Dec 22, 2009
Is there a way to make your webbrowser connect to a website via proxy server? (ex: 123.123.123.123 :: 12345)
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Aug 11, 2010
I currently have an HTML form that saves one input to a txt file that exists on my website.
I want to do this using visual basic(not vb script) in a codebehind page for and aspx form. everything i find on google tells me how to save the file on my computer or to a server on my system. This server exsists on a hosted website and I don't have access to the permissions on that host.
This works fine for the form post. how do i do it with vb
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Dec 4, 2009
i want to connect to mysql located on my website's server in visual basic.
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Jun 3, 2010
How would I make a Visual Basic application talk to a web server? Someone will press something on the site and I want the application to display the information that the web site passes along to it.
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Aug 28, 2011
Is it possible to implement an ASP website written using VB Script on a PHP MYSQL server. Maybe their is a php interpreter that can parse the asp files or something like that?
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Jun 14, 2010
I recently reimaged my PC and regrabbed one of our projects from Source Safe. In our solution we have a web service that normally runs on a server, however we can build the webservice on our localhost for debugging as well. However, now whenever I grab the project from source safe it is building the webservice as a website instead of a developer web server.
[Code]...
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Jan 29, 2011
I want to make an application that can push ads (website) to client..
Here is the case : Client try to connect to internet via wifi. Once the client is connected, server send a website address to client, and a popup (website sent by server) will appear in the client's computer in default browser.
I can list all IP connected to server, but i don't know how to push the website to client
Here is the code to list all IP connected to server : (import System.Net library)
String strHostName = "";
if(args == null || args.Length == 0){
strHostName = Dns.GetHostName();
[Code]....
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Dec 22, 2009
Is there a way to make your webbrowser connect (or your computer ping) to a website via proxy server? (ex: 123.123.123.123 :: 12345)
Not a proxy like corpask, but an IP and port.
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Nov 1, 2010
In asp.net web site project , i have created a .vb class file in App_Code folder. In that class i have created a Shared SubRoutine , in that code i want to use Server.Transfer method to transfer control to another web page .But Server property is unavailable in that code. Where is problem ? can anyone explain this.
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Mar 21, 2012
I am using the following code to fetch html source website.
private string Extract_Source(string url)
{
string output = "";
System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);
[code]....
It can fetch source properly but the problem is it fetch website source based on server from where script executed (i mean where website hosted), but i want to fetch content based on client information (ip etc)
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Jan 24, 2010
I have this code to connect to my server:
client = New TcpClient(txtIP.Text, txtPort.Text)
client.GetStream.BeginRead(readBuffer, 0, BYTES_TO_READ, AddressOf DoRead, Nothing)
SendMessage("/CONNECT|" & Label25.Text)
How do I check if the TcpListener is available?
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Apr 22, 2012
I am creating an application that will be talking over the LAN (and eventually, WAN) which uses the Tcplistener and Tcpclient objects.Now, I have this working absolutely fine locally using the loopack address although when I change the IP of the listener to 0.0.0.0 (listening for all IPs) and the IP in the client application, to the IP of the server, it throws an exception when connecting. The client says something along the lines of the the server has rejected the incoming connection. So i disabled all firewalls temporarily but I still have the problem.I have ran netstat on the server which clearly shows that it is listening for an incoming connection on 0.0.0.0. [code]
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Jan 24, 2010
I have this code to connect to my server:
client = New TcpClient(txtIP.Text, txtPort.Text)
client.GetStream.BeginRead(readBuffer, 0, BYTES_TO_READ, AddressOf DoRead, Nothing)
SendMessage("/CONNECT|" & Label25.Text)
[code].....
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Apr 26, 2011
How do I free an instance of TcpListener?
How, in VisualBasic, to I delete something from a 'new'?[code]...
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Oct 26, 2011
I have an application that listens for connections asynchronously. When a connection comes in, it spawns a new thread from the callback method. This works fine for up to about 13 simultaneous connections then it dies with an out of memory error. The threads that are spawned just do a CHAP handshake and authenticate then go in to a command loop where they sleep until a command comes in or a timeout occurs. I have pasted the code below. Sometimes it will not throw an error but the thread never gets spawned although the connection is accepted.
Code:
Imports System.Net.Sockets
Imports System.Threading
Public Class UpdateMonitor
[Code]....
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Jul 29, 2009
How can I detect when a client disconnects from the TcpListener ?
Each of my clients is handled in a separate thread.
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Sep 13, 2009
Is it necessary to close the connection of a tcplistener or tcpclient after every message received, or is it possible to close it at a later time while it continues to receive data? Is there any major security issue with leaving it open and listening? I know trojans tend to open a listener and leave it open, will my program be detected as such? Its just a simple chat program....
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May 5, 2012
[code]I send the Thread via Thread.Sleep to sleep mode when nothing happens here. Does this affect the TCPListener in his work somehow and what happens to an incomming connection while the Thread is in sleep-mode?
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Jun 25, 2009
I have been programming a TcpListener Program and I have everything working right! So far... Except that when I have multiple clients connecting to my Server... I used a try catch statement to catch the error and it says that tcplistener doesn't allow multi connections... think creating a new thread for each connection sounds like the most reasonible answer but I can't grasp the concept of it...
Here is my frmMain:
Imports System.IO
Imports System.Net
[code].....
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Oct 8, 2011
I posted this code in another thread as an example of how to listen for connecting clients using TcpListener.it is a small part of a larger project, its all my own work,
Imports System.Net
Imports System.Net.Sockets
Public Class Server[code].....
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May 26, 2009
How can I ask my tcpListener to listen to particular IP on specific port? I want my tcpListener to listen to the local IP of the machine. I can get the ipaddress of the pc using Dns.GetHostAddresses(). But, if pc have multiple ip's how can I know which ip address is correct? From tcpClient class I am connecting to the server. So, I know the server ip and so I want to specify ipaddress to my tcpListener class to listen on.
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Mar 2, 2010
I have a class that inherits from the TcpListener, this class Shadows the Start method just to call the base Start() and the base BeginAccept Tcp Client(). From time to time the method is called but the port is not opened (netstat does not show the port open).[code]The class that uses the ExtendedTcpListener implements the IDisposable pattern and inside the Dispose the ExtendedTcpListener.Stop is called.The stop text is not present at the logs when the problems happens.
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