Questions tagged [sockets]

A communication end-point for networking, for CPUs please use [processor-socket]

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How do SO-DIMM and M.2 sockets raise the modules?

When installing a SO-DIMM or M.2 module, you insert the modules sideways, push down and lock them. What's inside the socket, what pushes the modules up? Additionally, why isn't this installation ...
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failed to load resource net::ERR_FILE_NOT_FOUND Nodejs

I am in a mind boggling problem, unable to decipher whether or not the way how Windows and Ubuntu manages files had anything to do with socket.io in particular. I obtained the failed to load resource ...
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136 views

pfctl divert-socket in mac os?

I'm messing with divert sockets in OSX, and in order to capture any socket, I first need to set up a firewall redirection (divertion if you will): ipfw add divert 3282 tcp from any to any Something ...
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Cooler master ml120 RGB on different socket size

Does anybody know if the Cooler Master ML120L RGB liquid cooler fits the LGA 1151-v2 socket? Or is there any difference between the LGA 1151 and LGA 1151-v2 in terms of dimensions/size?
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Can socket sendto blocks randomly

Hello I am using a custom board with nxp processor, it has mcp2515 can controller connected via SPI. For the can communication, I have used can socket provided in yocto environment. The can ...
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How to fix the outerscope and shadowing the name

Can anyone please explain how to prevent from getting these errors in PyCharm? Also, can anyone please explain the difference between send to and send in simple words and its syntax? '**rdt**' is a ...
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118 views

How to run a socket.io app on apache?

I have a websocket service running on an Apache server. I read that you need to active two modules proxy_fcgi and proxy_wstunnel and reload Apache. (Done) This is my virtualhost file <...
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Setting up Port Forwarding so C++ Soket program would work

I followed this tutorial:https://www.geeksforgeeks.org/socket-programming-cc/ as it's my first time working with sockets. The program worked fine on a LAN with client connecting to server with server'...
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Client to Client Communication bypass Firewall?

I have got a Raspberry Pi which is communicating via sockets with my PC. If I’m running this setup at home everything is working fine. But in my university I cant even ping the Raspberry Pi Would it ...
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1answer
32 views

What is the equivalent of “/tmp/.X11-unix/X0” on Windows when using things like Xming?

I want to know what exactly does the display name like :0.0 mean on Windows. Where does Xming place its listener socket for others to find? When I set the "Display location" in PuTTY, where does it go ...
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Using “TIdSSLIOHandlerSocket” class giving me error “Already Connected”

There is already a connection established between Delphi client application and the server but at a specific point, client application established connection again with the server with the use of "...
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59 views

Radmin:Can not create a socket error

For some reason I had to execute Radmin on the command line, but occasionally I encountered an error prompt that it couldn't build a socket. My local system is Windows Server 2008 R2; &Radmin 3.4;...
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51 views

Unknown IceCast fails

I have a node.js script, which works in daemon mode. The script reads IceCast ogg stream itself (on the fly) and sends audio tags to website. But sometimes (exactly once per 2 days) the script fails ...
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28 views

Python server for simple website, how?

I hope this is the right exchange to post this, if it isn't I'm sorry and please redirect me. I am in the process of learning networking and webdev basics and started a little project and got lost ...
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26 views

GPS Device is sending junk data

I have a GPS device BW08C and when I configured with IP and protocol it is sending some raw junk on server. On other hand when I worked with other GPS device like LKGPS LK209 it gives me proper data ...
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154 views

What is the difference between [::] and * in binding sockets to IPv6 addresses?

I'm trying to investigate listening IPv6 sockets on an Ubuntu Server. I don't understand the difference between [::] and *. Two questions on my mind: Ary there any difference? If not, why they ...
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48 views

Multiple Processes listening on Port 22? How is this possible?

I have a Solaris 10 Server that has SSH enabled, I wanted to find out which specific process is responsible for opening the socket that listens for the port 22. I used the PFiles utility to loop over ...
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4k views

How does the OS tell whether an “Address is already in use”?

If my C program uses sockets, binds to localhost:9025, exchanges some data, gets manually killed and restarted, it sometimes crashes with the error being: Address already in use. All SE-...
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42 views

Exception: System.Net.WebException: The underlying connection was closed - IIS

I have very strange trouble and it's difficult to me to find solution for this error. Currently i have some services hosted on the IIS on different servers. On one of the servers there are times ...
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123 views

Pyinstaller not working properly after using shutil

Recently, while developing a reverse shell sample, I wrote a python program and then converted it into a .exe using pyinstaller. The idea here is try to bind a client to a server. First it creates a ...
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28 views

Installation error of 1c bitrix (especially for Russians)

I acted according to the video on Install PHP, Apache and MySQL. One of the differences is that I had a slightly different hierarchy of folders and files. My hierarchy is as follows: root is C: \ ...
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111 views

Is it safe to use one server fd in multiple epoll event loops in different threads?

I have one server fd, and several threads with epoll event loop in each of them (different epoll_fd's). Is it safe, if I would add this fd to every event loop? Is it true, that only one of them would ...
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41 views

Freebsd kqueue system call

I have a question regarding kernel event notification mechanism. I am working on RTEMS, and I am using freebsd version 9.2. I need to detect event when socket sending buffer is full. From ...
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298 views

How to make TCP program binding to any network interfaces?

I have a client / server network application using Boost ASIO TCP socket. The client is running on an embedded Linux system where multiple network interfaces available (WiFi, cellular, etc), at any ...
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488 views

System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

issue:WCF application, when the NetTCP client calls the server-side remote method (there are many remote methods, the server-side cpu/memory is normal). The following errors occur very occasionally ...
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45 views

XAMPP & C# Socket IPAdress questions

I'm working on a multiplayer game and I'd really like to bring it online. I'm a bit dumb when it comes to networking so please bear with me as I try to make heads and tails of this. I have a C# ...
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HAProxy wont accept socket command

I have enabled the HAProxy socket API on localhost on port 9999. Everything does seems to work fine, besides adding acl seems to be impossible. The following works fine inside the config but not ...
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265 views

Stop 'Connection refused' errors in production

I recently began receiving error: [Errno 111] Connection refused errors from http://yandex.com/bots that crawl my website in production. I do not mind that they are crawling the site, but would rather ...
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57 views

fuseki-Broken pipe (Write failed)

I get this error on the log while trying to insert data to Fuseki db. ------------------------------------------------------------------------ 10:56:44.573 INFO o.a.h.i.c.SystemDefaultHttpClient - I/...
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29 views

Connection failed error for client connected to server over wifi (TCP socket program in c)

Requirement : Need to send and receive message from two devices connected over wifi using TCP socket programming in c. Receiving connection failed for client socket. I am able to connect same client ...
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33 views

Why socket do not work on windows dualboot on a mac

I have a macbook pro with dualboot windows 10. I have a weird problem : I cannot receive any external sockets. I used several codes , several programing languages and they all failed. The same files ...
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261 views

TCP server socket closed but client socket remains open

I am working on a system with lot of interprocess communication using TCP. The TCP server is hosted on process A while client is hosted on process B. Both process "A" and "B" are executing on the same ...
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Informatica Dynamic Data Masking RoutePeer-2.serverData: Failed with: java.io.IOException: Connection reset by peer

We recently were working on a project that required using tableau with dynamic data masking service. Things all work fine till we try to extract a large table with approx. 20000000 records (about 10 ...
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tcpdump can get data,while pull() function return 0

I am new to Linux and Ros,when i run a ros driver for a 2D lidar,I met some problem and I cannot solve it. some code of the packet is list as below: int LslidarN301Driver::getPacket( ...
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failed: Error during WebSocket handshake: Unexpected response code: 400

I am using apache2 AWS server to deploy my project. My project is developed using NodeJS and ReactJS. For the last few days sever responds with this error, WebSocket connection to 'wss://staging....
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1answer
696 views

how to read UDP buffer size on windows 10?

I have a server application that will receive more than 200 udp packet concurrently (strings of max 64 bytes), for testing and performance purpose I want to check the UDP buffer in my server to check ...
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1answer
188 views

Communicate with Docker daemon on Windows

I want to use Docker API on Windows, but as far as I know, there are no socket files on Windows. On Linux, I can use /var/run/docker.sock, but how can I use Docker API on Windows?
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How can I use the “location of socket in memory” field in /proc/net/tcp

I'm working on a proxy for linux(C++) that, amongst other functions, keeps track of tcp connections and associates them with the process's pid. To do that, I get the inode in /proc/net/tcp and then ...
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291 views

Multiple applications using same multicast group on the same Windows host

I am a software engineer designing a distributed software, in which the startup procedure utilizes IP multicasting to discover its peers. The software itself is distributed as different executable ...
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1answer
2k views

How to expose Linux socket file from Docker container (MySQL, MariaDB, etc.) to host

Disclaimer: I am not looking for a way to configure MySQL/MariaDB to use TCP connections. I am aware of that option and the question is not about that aspect. I am having trouble binding a socket ...
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93 views

How does multi cpu system shares pci-express bus?

For a modern single-cpu system things are transparent: there is multicore cpu, where cores are talking via uncore functions (like L3 cache, shared on-die memory controller). Uncore does also all the ...
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1answer
90 views

Extended socket information from ss

Running the following command gives me extended socket information. $ss -tuen Netid State Recv-Q Send-Q Local Address:Port ...
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1answer
403 views

cannot start docker when using chroot

I am trying to build a custom distribution that runs docker. I am using kiwi framework to achieve that. Docker installation is done successfully during the build. The problem is that I want to load ...
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408 views

Communicate with Topshelf windows service running on a server

I have a Topshelf windows service running on a Windows Server and I want to communicate with it, start and stop it from a remote client app, and try to resume some data from "MyService.cs" that is ...
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799 views

How to have a value different from 0 in netstat's Send-Q column for a socket in the LISTEN state?

I am currently trying to solve a Capture The Flag challenge that involves trying to escalate privileges by taking advantage of an exploit in a bash script. The script first does the following to get ...
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544 views

Could not bind socket : Permission denied

I would like to use port 443 in a PHP script, but seems like i don't have privilages to do so. That's the php error that occurs: Could not bind socket : [13] Permission denied that's the simple php ...
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1answer
2k views

LGA1150 CPU on LGA1155 MoBo?

My motherboard fried and I am looking for an identical replacement. Only, the motherboard is an Acer H81H3-AM V1.0 with socket 1155 according to specs, and CPU is an i5-4460, socket LGA1150. Is this ...
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97 views

How to detect if connection to server drops out randomly

I've installed an application that connects inside my local network to another machine's database. If I run this software every 30min-2hours I get a socket error in the software. I want to ...
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2answers
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Is i7-940XM compatible with rPGA989 socket?

Is the Intel i7-940XM compatible with a rPGA989 socket? My laptop is a ASUS K52JT with a Pentium P6200 processor. Can I replace it with i7-940XM? If I can, at which frequencies can I run it? The ...
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1answer
168 views

Checking Nagle Algorithm on opened socket

One of the platforms we use opens TCP sockets (No source code available). I need to check if the Nagle Algorithm is disabled or enabled on those sockets. The operating system used can be Windows or ...

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