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

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Can't connect to socket listening on 127.0.0.1 but works for 'localhost' in Windows 10

I have a clean install of Windows 10 Pro x64 and I’m trying to run PostgreSQL server on it. It used to work perfectly on Windows 7, but Windows 10 is behaving really weird: If I configure PostgreSQL ...
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20 views

BubbleUPnP http error java.net.SocketTimeoutException

I'm setting up a BubbleUPnP server so I can stream my music to myraspberry pi. I've installed everything but the connection doesn't work. I'm using Windows 7 on my laptop. I've forwarded the ports of ...
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1answer
85 views

How to free a port on OS X when lsof(1) reports that it is not in use

I am a developer working in OS X on Eclipse. A bug I have been working to fix in a web application results in some very strange behavior when resetting an instance of Tomcat, resulting in the ...
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28 views

How to communicate with a LaunchAgent via Unix Sockets?

I'm trying to setup a LaunchAgent (running in the current user's UI context) that can receive "commands" like a server. The "commands" are sent by a LaunchDaemon running as "root" user, or some other ...
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31 views

Socket.IO & Millions of requests

I am working on a social media company which has almost half of a million users. It's an iOS and Android application. I just joined them to build their website so I want to use socket.io for the ...
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1answer
46 views

TCP socket to serial port

Is is possibile to remotely access a serial port by tcp socket server? Exists this kind of software? It is the opposit of this question: Any free application to redirect serial communication to ...
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1answer
29 views

TCP socket communication from client to server

I am trying to test the performance of a client/server application that uses TCP communication. If I trigger multiple requests from the client, would it flow through the same connection/pipe to the ...
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6 views

Route only on output chain?

I have two machines A and B. I want to send iperf traffic from A to B, but first have it route through a userspace program on A. I did this with a tunneling device: therefore, I used the command ip ...
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2answers
292 views

Data retransmission and WSAECONNABORTED (10053) socket error

Say I have two sockets that are connected to each other (Socket A and Socket B). If the computer that have Socket B is unplugged from power, then if Socket A tries to send some data to Socket B, the ...
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2answers
66 views

Are FIN packets guaranteed to arrive?

In the 4-way handshake, we have the following: FIN -------> <------- ACK <---x--- FIN (what if this packet is lost?) ACK -------> What happens if the third packet is lost, will it be ...
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1answer
11 views

I can not connect with sockets using IP WLAN

I'm trying to make a connection by sockets, but I can not connect when I'm using IP WLAN, but the lookback IP connects and works, as seen in the two photos below That's what happens when trying ...
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16 views

Connect from A to C using B in the middle

What software can be used to do a connection: A <-> B <-> C Where: A is a windows pc. B is a windows pc on a remote desktop (with an static ip) C is another computer that expect connections ...
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36 views

netstat -o timer value “probe”

A bit of background on the scenario. I have a distributed application running on RH6.5 that uses JMS (OpenMQ 4.5.2) to send messages between hosts. One host (Host A) receives information from network ...
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1answer
62 views

List all open sockets in /dev/tcp/localhost/

Is it possible to list all open sockets in /dev/tcp/localhost/ on a Linux machine? I want to list all sockets where the following command would return 0: timeout 2 bash -c "cat < /dev/null > ...
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39 views

How do I troubleshoot if I see the incoming packet in tcpdump, but not at the socket?

For example, I see that the incoming packet in tcpdump, but not in strace for the program that is listening the appopriate socket. How do I trace the "fate" of this incoming packet on Linux? I ...
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1answer
90 views

I added a simple socket perl server script under Cygwin Xinetd to echo client input but it reads blank instead

I installed a x32 version 1.7.33 of Cygwin on my x64 Windows7 machine. I added a new service under /etc/xinetd.d/ccapi. $ cat ccapi-stream service ccapi { id = ccapi-stream disable = ...
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6 views

What happens when I terminate a process and the socket send buffer is not empty? [duplicate]

In Windows (and probably in other operating systems), if a process has a TCP connection with another process on another machine, and then I terminate the process, an RST packet will be sent to the ...
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1answer
118 views

What happens when I terminate a process and the socket send buffer is not empty?

In Windows (and probably in other operating systems), if a process has a TCP connection with another process on another machine, and then I terminate the process, an RST packet will be sent to the ...
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47 views

How to connect two debian VMs using vmware workstation so that one acts as a web server and the other as web client

I want to connect two virtual machines running using VMWare workstations - Debian Linux and I have setup private DNS server on one VM named "Server" and other VM is named "client". I am trying to ...
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0answers
76 views

linux + what are the messages bad tty under /var/log/messages file

under /var/log/messages I see the following messages "bad tty" what the meaning of these messages? second is it caused because some application that called - owstd ? as we can see from the log? ...
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2answers
278 views

Linux localhost sockets painfully slower than on Mac

This question is based on this thread over at OpenOffice. I'm using Python and the Office UNO bridge to analyze documents. For the most part I run on my Mac and spin up an office instance to listen ...
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3answers
94 views

What happens when 2 hosts simultaneous establish a connection in a 3-way handshake

Say two hosts, A and B, both attempt to start a connection with each other, but the SYN from A gets to B before B's SYN arrives at A. My answer is that A would sent SYN ACK and would ignore the SYN ...
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1answer
148 views

Where is “unix:abstract=/tmp/dbus-KtyPDgWNin” socket file saved?

I try the following: roroco@roroco ~/Dropbox/rbs/ro_cmds $ echo $DBUS_SESSION_BUS_ADDRESS unix:abstract=/tmp/dbus-KtyPDgWNin,guid=ca3ea893cf45d42ef60e74d0545d84f6 But when I want to list this ...
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2answers
2k views

Can cURL send requests to sockets?

I can find nothing about this on Google or the cURL man pages. I have a HTTP server running at /var/run/my-server.sock, and I want to test it by sending a simple request using cURL. Can this be done ...
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30 views

Window Period Where Sent Packets Cause Socket Acting as Server to Malfunction

I am currently working on an embedded Linux server. My main application is a state-machine that is started during the init phase from the rc-scripts. The application spawns several worker threads. ...
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28 views

Access remotely two computers via IPv6 [closed]

I have a little problem on my house. Recently, I installed Teredo on two computers using sudo apt-get install miredo. Now I can access my two computer via IPv6 using Sockets in C. My goal is: I am a ...
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1answer
84 views

How are programs in windows (7) allowed to open sockets / connect to the internet without UAC?

I tried searching online but I feel I'm not searching with the correct keywords. I'm teaching myself network programming just to understand how everything fits together better. I've made a simple ...
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1answer
388 views

Launching Google Chrome 38 in background using node and socket-io

I need to launch google chrome in the background using service that will be using AD user. Windows service is running node.js and i'm launching Chrome by request via Socket-io. Chrome should open ...
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1answer
146 views

Emulate console by sending data on one UDP port, and receive text from another

I'm trying to establish a “console-like” connection with a National Instruments cRIO-FRC. It broadcasts its console output onto 255.255.255.255, UDP port 6666. I can listen to it with: socat ...
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1answer
1k views

CPU Upgrade Options - rPGA Socket 989

I have a Samsung R730 laptop with HM55 chipset and the above socket number. The current processor is an Intel Pentium P6100. The processor is very limited with regards to visualization etc and I ...
0
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1answer
124 views

websocket responses appear to be cut off

So my websocket server (socket.io) is sending JSON data to my clients who connect with their web browsers (e.g. Firefox). It works fine when I am sending short responses. However, when I send a ...
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1answer
283 views

Does an open TCP socket connection consume data when not used?

I have a TCP socket connection established between my server and a modem which has a active GSM module and sim card installed. I create this wirless 3G connection via socat: /usr/bin/socat ...
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2answers
3k views

Nginx can't connect to uWSGI socket with correct permissions

I'm trying to connect Nginx to uWSGI so I can run an application written in Ruby (where I am not able to use passenger). This is my virtual host configuration: server { listen ...
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1answer
184 views

What is a U2E1 socket?

I have a 2011 MacBook Air running Ubuntu 14.04 and would like to find out the CPU socket through software methods. To do so, I'm running sudo dmidecode -t 4, which yields, among other things, this: ...
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1answer
75 views

Does private browsing prevent socket events?

I usually do my work in Google Chrome (v36.0.1985.143), private browsing enabled. I use Firefox to browse Stack Exchange, in normal mode so that all my logins are persisted. Sometimes I accidentally ...
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2k views

error: [Errno 10048] Only one usage of each socket address (protocol/network address/port) is normally permitted

I am creating system tests on a Windows7 machine using python, in which I need to open various socket connections to other machines. I also have several virtual IPs added to the local machine. These ...
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303 views

Re-stream (forward) UDP-Live-Video-Stream (using winsock) reduce video quality?

So, I used ffmpeg to stream the live webcam using UDP protocol to port 1111 : ffmpeg -f dshow -i video="Lenovo EasyCamera" -f mpegts udp://localhost:1111 When I played it directly by ffplay from ...
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3answers
3k views

How to determine why port 443 is already in use?

I'm running Apache 2.4.10 on a Windows 7 machine and am trying to add SSL connections. Port 80 connections work fine, and I'm trying to add port 443. When the httpd.conf gets Listen 443 added it ...
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218 views

VirtualBox and Websockets

I am using Virtualbox with Linux host and Windows guest. When I try to use websites that makes use of websockets it's not working properly (not getting messages). I believe this can be fixed with ...
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0answers
154 views

Using Tap/Tun to intercept packets at IP level

I am working on a research project involving ARP poisoning. I would like to intercept packets on the IP level. If my machine receives a packet with an IP address not destined to it's own IP ...
0
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1answer
93 views

Test connection to a port without actually connecting to it

I have a python socket server (single-threaded, accepts only one connection) running somewhere. I connect to that port and do my things. How can I detect whether port is open or closed without ...
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1answer
20 views

MAMP : socket problems for external ressources

i have a problem with sockets on MAMP. i access to my localhost website with localhost:8888/sitename but external ressources like CSS are loaded with localhost/url without socket so request is ...
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513 views

Mysql socket error 2002 on Linux Mint - Access denied

My apache and xampp servers are running on port 2145 and 16443 respectively. sudo /opt/lampp/lampp restart Restarting XAMPP for Linux 1.8.2-5... XAMPP: Stopping Apache...ok. XAMPP: Stopping ...
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2answers
48 views

TCP wireless communication

For the pass 2 months, i am trying to establish a wireless communication between 2 devices. Whatever solution i found, got failed due to large number of constraints we have. Seriously posting this ...
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0answers
1k views

Default Gateway IPv6 but IP set on IPv4

I have a client who has a network setup. I have a couple of devices which work on the network using socket communication which I want integrated onto their network. There is a PC which is to be made ...
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1answer
226 views

systemd: starting service that depends on sockets does not work

I'm using systemd to start a WiFi and power monitor service script that scans for an SSID, brings up the network and an SSH tunnel and does a few other tasks. Much to my surpise it doesn't always ...
0
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1answer
257 views

Error getting server's IP address using Python on CentOS

I'm using Python's socket module to get the server's IP address server_ip = socket.gethostbyname(socket.getfqdn()) I get this error: socket.gaierror: [Errno -2] Name or service not known Weird ...
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151 views

How to forward data to mysql server using socket module in python

How to forward data to mysql server using socket module in python, i have try to import socket and connect it to mysql server for test, but have no data received from it, my code like this def ...
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3answers
6k views

Allow non-root process to bind to port 80 and 443?

Is it possible to tune a kernel parameter to allow a userland program to bind to port 80 and 443? The reason I ask is I think its foolish to allow a privileged process to open a socket and listen. ...
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1answer
172 views

Linux Kernel TCP socket functions

So I have been looking through the Linux Kernel v3.8.0-19-generic source code and I noticed that the proto struct, whose members are virtual functions for socket operations depending on the particular ...