network diagram program

TCP/IP, HTTP, and FTP Layers When the application layer uses the transport layer for data communication, TCP and UDP may encounter concurrent services for multiple application processes at the same time. Multiple TCP connections or multiple application processes may need to transmit data through the same TCP port. To differentiate different application processes and connections, many computer operating systems provide interfaces called Sockets for applications to interact with TCP/IP protocol

RMB is used to calculate the network programming communication program in linux-general Linux technology-Linux programming and kernel information. The following is a detailed description. I graduated from the undergraduate course and studied network communication systems in linux. There are too many things to learn due to time constraints, so it is impossible to

Recently, many netizens in micro-blog, forum Hot Discussion, the Ministry of Railways 12306 Web site frequent logon difficult, server "paralysis" and so on, the ticket is difficult to buy the sky. Annual National Day Golden Week, during the Spring Festival, the purchase of train tickets is always troubling everyone's top priority, netizens have said that the real name of the train ticket after the real name, to buy tickets more difficult, more netizens describe the purchase of railway tickets th

Powershell to view the program's tcp network connection, powershelltcp During O M, you often view the network connection status of a service. Here, you can use netstat to find connections and use the hash feature to avoid duplication. $ Add =@{} while (1) {ps |? {$ _. Path-match 'e: \ games \ dream XX} | % {$ id = $ _. idnetstat-ano | ForEach-Object {$ I =$ _ | Select-Object-Property Protocol, Source, Dest

Recently I learned about network filtering and found that there are manyProgramThe filtering function is shown on the surface, but network data cannot be filtered. In my first step, I want to write a simple program to prevent the computer from connecting to the Internet. After searching for the Internet and the help of msdn, I formed the followingCodeIt is reason

This paper describes the implementation method of C/S network program written by Python3. Here's how: The example described in this article is a C/s applet written according to Wingide, the specific code is as follows: The client side myclient.py code is as follows: #!/bin/env python#-*-coding:gb18030-*-#import socket import timei=1while i The server-side myserver.py code is as follows: #!/bin/e

The uninstall or Setup program appears: The feature trying to use is on a network resource ...This may be because the software has already been installed, so it should be uninstalled first, (this can happen when uninstalling)The prompt box is as follows:Workaround:In the dialog box that pops up, click Browse below to find the original installation package file, click OK, uninstall and reinstall the software

, maxbuf + 1);Fgets (buffer, maxbuf, stdin);if (!strncasecmp (buffer, "quit", 4)) {printf ("I'll quit\n");Break}Len = Send (sockfd, buffer, strlen (buffer)-1, 0);if (Len printf ("Message send Failure");Break} elsePrintf("Send success,%d byte send\n", Len);}}}Close (SOCKFD);return 0;}test methods such as the following:gcc server.c-o Servergcc client.c-o Client./server 172.16.148.114 8888/* under one terminal. 172.16.148.114 is the IP address of my virtual machine * /./client 172.16.148.114 8888/*

After running the program, use Javaloader-eventlog > Log.txt or Mobile phone to view EventLog can see the following content, can be very accurate understanding of this program is to go to which network connection channel, no longer guess fan. Updated December 31, 2012 ------------------------------------------------Test Environment 9800 + CMCC general SIM cardCM

Http://www.vpser.net/manage/nethogs.html from. Last modified slightlyBefore the VPS detective once introduced traffic bandwidth related tools such as: Iftop, Vnstat, these are statistics and monitoring network card traffic. But when the bandwidth of our servers or VPS is heavily occupied or full, there is no satisfactory tool or program to see how much bandwidth the pro