tcp-ip

问题 I have a Modbus TCP/IP to MODBUS RTU converter , which comes with a default IP of 192.168.0.1 . I need to develop a small c# Winform app to change this device's IP address to any desired IP address. How do I do that?. 回答1: You could do it with WMI (Windows Management Instrumentation). First, you have to add the reference for System.Management to your Project. Second, you need to find the NetworkInterface for your network connection by name: using System.Net.NetworkInformation; using System

问题 I want to find server in my local network through android device. I am able to find it by using NSDManager service with service type of server(e.g _workstation._tcp is service type). In my local network I have a wifi router and a wifi repeater, both have different SSID but same password . Wifi repeater is connected to router. Wifi repeater have same IP range as of router. For example 192.168.0.1 is gateway of my router. IP of server is 192.168.0.100 . IP assign to wifi repeater is 192.168.0

问题 Our project is LIDAR which is based on physics. The total equipment is connected to server which consists of various sensors. Server gives total information about the equipment like temperature, humidity etc. Server and laptop are connected through LAN. Our work is to develop a software using labview which interfaces the equipment with the laptop. To achieve that first we have to connect the server to the laptop. We have tried in so many ways using TCP/IP vi in labview. Both server and client

问题 <?php $youtubeUrl = "https://www.youtube.com/watch?v=Ko2JcxecV2E"; $content = json_encode ($file = shell_exec("youtube-dl.exe $youtubeUrl ")); $input_string =$content; $regex_pattern = "/Destination:(.*.mp4)/"; $boolean = preg_match($regex_pattern, $input_string, $matches_out); $extracted_string=$matches_out[0]; $file =explode(': ',$extracted_string,2)[1]; // Quick check to verify that the file exists if( !file_exists($file) ) die("File not found"); // Force the download header("Content

问题 I am new to TCP socket programming. I have a django based server communicating with a microcontroller. Now, I want to implement TCP based socket on the server side in order to communicate with the TCP socket on the microcontroller. Can anyone give me an idea on how to do this ? What libraries should I use on my django server The microprocessor basically opens the socket every 5 seconds and sends a notification to the server. I on the server side should be able to read this and pump data back

问题 I have a Linux virtual server with 2 NICs. eth0 <IP1> eth1 <IP2> arp_filter is turned on and rp_filter is set to be 2(loose mode). Policy-routing is configured as the following: table T1 default via <GW> dev eth0 src <IP1> 127.0.0.0/8 dev lo <LAN> dev eth0 src <IP1> table T2 default via <GW> dev eth1 src <IP2> 127.0.0.0/8 dev lo <LAN> dev eth1 src <IP2> ip rule add from <IP1> table T1 ip rule add from <IP2> table T2 After that, I can ping both binding floatingips of <IP1> and <IP2> from

问题 I'm currently working on a project where I need to use an Arduino Nano (http://arduino.cc/en/Main/arduinoBoardNano) to send data from a temperature sensor to a web server. At first I thought it would be easy, since there are so many great libraries out there to help with POST/GET etc. However, my professor just told me that I need to send data to the server using TCP/IP, and as I understand it POST and GET are HTTP methods. Could someone explain to me the difference between HTTP and TCP/IP?

问题 I have a problem with my TCPIP connection Form programm. I have a code, where I'm trying to send and receive some data from server. The main problem of my app is how to reconcile some threads: myListenThread - to listening data from server myReadStreamThread - to read data from server System.Threading.Thread - main thread eg. to write data to server captureThread - to do another things like capturing images from camera Part of my code: private void buttonConnect_Click(object sender, EventArgs

问题 I'm working on a packet capture program. Is it possible for an IP packet to have the FIN flag set but also have data? 回答1: Strictly speaking, it is possible to put data in a TCP FIN packet... Quoting from RFC 793 (emphasis mine): The SYN and FIN are the only controls requiring this protection, and these controls are used only at connection opening and closing. For sequence number purposes, the SYN is considered to occur before the first actual data octet of the segment in which it occurs,

问题 I'm working on a packet capture program. Is it possible for an IP packet to have the FIN flag set but also have data? 回答1: Strictly speaking, it is possible to put data in a TCP FIN packet... Quoting from RFC 793 (emphasis mine): The SYN and FIN are the only controls requiring this protection, and these controls are used only at connection opening and closing. For sequence number purposes, the SYN is considered to occur before the first actual data octet of the segment in which it occurs,