I used a tcpclient to make a connection to a streaming API and for some reason it doesn't work with a 301 error, (something wrong with my credentials). However when I use a httpwebrequest to the same API and use the same credentials and that works.
TCPclient connection:
Try
Dim bufferread(defaultSize) As Byte
url = "xxxxxxxxx.com"
Dim tclient As TcpClient = New TcpClient(url, "80")
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I have a .Net program that has to run on a cluster of server 2008. To find out the right IP I resolve the dns by GetHostEntry(VarDefinedInfConfig).AddressList(0)
but when I am converting my old code (this code picks the wrong IP) dns.GetHostName().AddressList(0) => this returns a virtual IP and not the right one.So I changed my TcpListener to (dns is parameter from config)Dim listener As TcpListener = New TcpListener(New IPEndPoint(Net.Dns.GetHostEntry(dns).AddressList(0), 8001))
listener.Start()
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just want to know what is the difference between these date values?Once some one told me that its difference is server date and client date but not sure which one he meant.Below is 3 type of date currently I'm using and don't know what is the difference between them.
DateTime.Now is from System.DateTime.Now
Now is from Microsoft.VisualBasic.DateAndTime
Today.date is also from System.DateTime
What I would like to know is how to obtain form input elements during an httpwebrequest?
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Is it possible to obtain these input elements during an httpwebrequest without having to view the html code?
I'm trying to connect to a remote server (from our customer) via HttpWebRequest.GetResponse but at the login page i'm always getting an exception: "The remote server returned an error: (500) Internal Server Error." In the response stream i see that i was redirected to the error-page. The code worked so far(HTTP status 200) with the old ASP-website but they'll migrate to ASP.NET soon. There's no error if i browse to the URL manually. This is the (reduced) code:
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I have a crawling program that fetches urls to parse the html and came across an unusual error since I started this. For a specific set of urls from a site when fetching using HTTPWebRequest and HTTPWebResponse I get the error The remote server returned an error: (404) Not Found This is unusual since it works when pasting it in my browser. Not sure if code is needed to posted but let me know if so.
View 1 RepliesI must be missing something obvious. I have a class
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The target server is writen in Cold Fusion and i have no access to there.
In addition i get only this error msg: The remote Server returned an error: (500) Internal Server Error
What can i do in order to come with a more friendly exception message?
Am i overlooking something obvious in my code? myResponse.Close()
I'm using the following code to connect to a IDM webspere message queue to try and pull a message from the queue.the HTTPWebrequest method neets to be DELETE to pull the message and revoce it from the queue.However when yousing the code below i get the following error:Quote:Cannot send a content-body with this veb-type
Code: Private Sub btnGet_Click1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGet.Click Dim objRequest As HttpWebRequest = HttpWebRequest.Create("http://webspere/mq/msg/queue/INSURANCE.TO.PRISM") Dim
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So how does one turn SSL on in System.Net.Sockets.TcpClient with VB.NET code?
Turning it on in System.Net.Mail.SmtpClient is easy, you set the .EnableSsl property. I cannot find a corresponding property in TcpClient. It's probably buried somewhere.
During development, we usually use localhost as the hostname, like the following
Dim serverListener As New TcpClient("localhost", 8585)
I want the user to be able to enter their IP address via a TextBox instead, like
Dim serverListener As New TcpClient(textbox1.text, 8585)
However, this is not working for me.
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]
View 5 RepliesI have an application in vb.net which will connect with an hardware device and test its functionality. The hardware device basically spits out data continuosly through Ethernet. That is it recieves some data via com ports and spits out the processed data via ethernet.So my application does both. Thats pretty much the entire app.My problem is i am using tcpclient sockets. Now when i connect a tcpclient to the device using
tcpclient.open(ip,port);
Immediately the device sends some data which comes and get stored in the clientsocket. Then i send a command to it ,only then i read the data from the clientsocket using
tcpclient.getstream().read()
at this time the entire data that is the one which flowed immediately when connected to the device and the one that i actually need after passing command is both acquired. This is undesirable. I need the data which i read only after sending the command. So i was wondering if there is any way to clear the tcpclient socket before we do a read. The manual doesnt show any such method.
I'm having a hard time getting the fundamentals down about these TCP Socket classes.
When you use TcpClient, you can set the IP Address or domain name to connect to the server end of the socket. I see examples that use "localhost" as the first parameter for TcpClient. Is this just a broadcast over the network to find the server that has a TcpListener listening on the dictated port of the second parameter of the TcpClient declaration? With any IP address for TcpClient (I realize that's an option, though), how does "localhost" find the TcpListener server?
I want to create an array of tcpclient 1 to 5. i know it can be done by arralist but how i will add array of socket in arraylist and send/receive data.
View 5 Repliesi know how to make a tcp ip connection using tcpclient and so on. But what i want to know, how to transfer file in a specific computer?
View 2 RepliesI have been reading the following thread by perito which was resolved with a great deal of assistance from Athiest.[url]...
Using the sample code in this thread I have now created a Client and Server app which is successfully sending messages over a network between two machines.
Now that I am able to send simple text messages I would like to progress to my intended pratice of sending more complex information between the machines. I have already written a program which generates and stores data with a class which I use as a data type. I would like to be able to pass this class from one machine to another.
i've a simple question: is possible to send dataset through TcpClient
View 3 RepliesMy tcp client has made a connection to the server script! Now that it has connected, how can it send a simple string? I do not know what any of the overloads for the .Client.Send method even mean, or how to use them. I already have a system set up on the server side to parse the string when it is received on the server side, but I have no idea how to send a simple string to it.
View 2 RepliesDuring development, we usually use localhost as the hostname, like the following
Dim serverListener As New TcpClient("localhost", 8585)
I want the user to be able to enter their IP address via a TextBox instead, like
Dim serverListener As New TcpClient(textbox1.text, 8585)
However, this is not working for me and how can i verfiy that the user enter correct ip address .
is there a way to use my tcpclient and listener to use a no-ip host because i am on a laptop
View 5 RepliesI've been working on a program where clients will send short messages to a server.[URL]
On the server side, this code is running to check for incomming messages:
Private mClient As System.Net.Sockets.TcpClient
...
Do
bytesRead = mClient.GetStream.Read(readBuffer, 0, BYTES_TO_READ)
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is there a way to send a command to start a prog on the tcpclient side.
View 3 RepliesI am making a contact management program that works like a chat conversation. First, the client connects with his/her name and says: GIVE_INFO. Then, the server sends the client's info that it gets from a csv. Finally, when the user makes all desired changes, the client "tells" the server the info separated by commas and the server replaces the information in the old csv with the new info.So, the program worked for 2-3 times then all of a sudden when I made some changes it stopped working[code].......
View 2 RepliesI've been searching for a way to route requests from a tcpclient through a proxy server, but I cannot figure out a way to do so. Can somebody tell me a solution?
View 1 RepliesFor some reason I can't append text to data I get from a tcpclient stream I have.
Dim Client As New TcpClient("server", port)
Dim stream As NetworkStream = Client.GetStream()
Dim receiveBytes As [Byte]() = New [Byte](Client.ReceiveBufferSize) {}
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The message box will only contain the returnData string without the hello.
I'm having problems retrieving the full source code of a website (it only returns partial source) with TCPClient. My code is below if you could either correct it or lead me on the right path, it would make my day. [code]
View 5 RepliesHow would i send different types (.png/.bmg/.mp3) of file over a tcpconnection (server / client)
View 2 RepliesI'm using the code below to send large strings (500kB) to a server. I'd like to show the upload speed and in order to do that, I need to calculate the amount uploaded every second.
In a Timer that fires every second I get the BytesUploaded, divide it by 1024 in order to get KiloBytes (kB/s) and show it to the user. Then I set BytesUploaded to 0 and one second later do the same process.
The uploading is done asynchronously and the size of the data is added to BytesUploaded at once. This means that BytesUploaded is not being updated in a constant flow and has a totally different value almost every second.
0
512000
0
0
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I am writing a VB.NET app that connects to a legacy application using TCP.
The communication is working fine and is very quick once connected, but there is always a delay (of around 2.5-3.5 seconds) when I create the new connection even though I am connecting to my local machine[code]...