Is it possible to send datagrams over TCP?
In theory nothing prevents using TCP socket with SOCK_DGRAM. What you'll get is reliable datagram transport. Is this possible using Berkeley sockets? ...
tcp
maximum packet size for a TCP connection
What is the maximum packet size for a TCP connection or how can i get the maximum packet size? ...
Trying to packetize TCP with non-blocking IO is hard! Am I doing something wrong?
Oh how I wish TCP was packet-based like UDP is! [see comments] But alas, that's not the case, so I'm trying to implement my own packet layer. Here's the chain of events so far (ignoring writing packets) Oh, and my Packets are very simply structured: two unsigned bytes for length, and then byte[length] data. (I can't imagine if they were...
Transmitting complex objects using TCP
I have a client server application in which I need to transmit a user defined object from Client to Server using TCP connection. My object is of the following structure: class Conversation { private string convName, convOwner; public ArrayList convUsers; public string getConvName() { return this.convName; } ...
Need Descriptive architecture to develop file server in dot net.
Hello All, I have to develop a file server service that transfer file form a specified location to its client.Client when starts, requests file to server for current date. Server transfer those file to client. Now constrains are as 1.Application run in intranet. 2.Need to transfer multiple file at a single transaction. 3.File size may ...
Enhance UDP - Windows Mobile 6
Hello, I am currently working on a VOIP system for WM6 devices in C#. Recording and playback speach is noproblem but with the transmission, my signal gets distorted. How can i solve these distortions. RTP would be a solution but i can't find any suitable ways to implements RTP/SID... Thanks in advance Gerrit ...
Efficient multiple services exposed over .NET remoting using more channels or end points?
I am using remoting over TCP for a prototype distributed server application where I want to have varying multiple services exposed from each remoting server process. In some cases I want the services running from the same process but I don't want whatever is using the service to care about that. I am wondering is it more efficient to h...
Windows TCP connection - Still alive after process terminate
Hi People, I run a license server in linux and a process in Windows to check out tokens from it. It does a tcp socket connection to server to communicate and once the process in Windows is closed, the tokens are checked in back to server. But I see sometime the connection show as established in netstat output even when process in Window...
Client Server problem with connect() or accept()
Hello, all. I'm having a bit of weird problem with client server program. I have two different kinds of clients trying to connect to one server, one is just more barebone than the other with less things to do. But other wise they are practically the same. While the barebone code can connect to server and server accepts it fine, the elabo...
Python, implementing proxy support for a socket based application (not urllib2)
Hey guys, I am little stumped: I have a simple messenger client program (pure python, sockets), and I wanted to add proxy support (http/s, socks), however I am a little confused on how to go about it. I am assuming that the connection on the socket level will be done to the proxy server, at which point the headers should contain a CONNE...
How to write custom data to the TCP packet header options field with Java?
As it is defined (see: http://www.freesoft.org/CIE/Course/Section4/8.htm) the TCP header has an 'Options' field. There are a couple of options already defined (see: www.iana.org/assignments/tcp-parameters/) but I want to come up with my very own. (For experimenting/research.) How can I get Java to write (and then read) some custom dat...
How can the SO_RCVBUF be smaller than the TCP receive window? (Windows XP)
I have an application using TCP on Windows XP. When I call getsockopt with the SO_RCVBUF option, it reports 8192 bytes. However, Wireshark shows the app advertising a receive buffer of 64K. How is this possible? To have a 64K receive window, doesn't it need a 64K buffer? Are there two different buffers? ...
Is correct order of WCF TCP messages guaranteed for multiple sending threads?
There is a single WCF connection using TCP. Two threads on the server write to this connection consecutively. Is it always guaranteed that the first message gets processed by the client first? According to my understanding it should be guaranteed. ...
.NET 4 Router: Can we filter binary incoming data from HTTP/TCP stream?
So I want to have have some service with url example.com:4773/routerService . I am gouing to have some wary simple client which will take some address and start streaming data to it, binary data like mp3 or pcm stream so no serialisation no special mesages just star streaming pure stream to URL. So my client will go to URL like examp...
How to configure your WCF service to work as normal TCP server?
How can I configure my WCF service to work as a normal TCP server? Is it possible to disable all that binding specific stuff so as to keep your service URL like http://example.com:4444/service and be able to work vith pure HTTP/TCP streams? I need to be able to work with TCP streams in tandem with WCF services... so I have to make TCP s...
Can I make a "TCP packet modifier" using tun/tap and raw sockets?
I have a Linux application that talks TCP, and to help with analysis and statistics, I'd like to modify the data in some of the TCP packets that it sends out. I'd prefer to do this without hacking the Linux TCP stack. The idea I have so far is to make a bridge which acts as a "TCP packet modifier". My idea is to connect to the applicati...
C# Polling a TCP Server
Hey everyone - I am wondering if anyone could help me out - I need to poll a TCP server frequently with a request to receive some real-time data. I know I will need to create a thread in order to talk to the server but I am unsure as to how to make this poll frequently. Any help would be appreciated... ...
Why does my Perl TCP server script hang with many TCP connections?
I've got a strange issue with a server accepting TCP connections. Even though there are normally some processes waiting, at some volume of connections it hangs. Long version: The server is written in Perl and binds a $srv socket with the reuse flag and listen == 5. Afterwards, it forks into 10 processes with a loop of $clt=$srv->accept...
TCP sequence number question
This is more of a theoretical question than an actual problem I have. If I understand correctly, the sequence number in the TCP header of a packet is the index of the first byte in the packet in the whole stream, correct? If that is the case, since the sequence number is an unsigned 32-bit integer, then what happens after more than FFFF...
What is the fundamental difference between WebSockets and pure TCP?
I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets? ...