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

learn more… | top users | synonyms (1)

3
votes
1answer
1k views

SYN-ACK not received

On a standard TCP connection between server and client, I have this issue: the SYN-ACK is not received from the client, while it is sent from the server. I could see this on Wireshark from both server ...
0
votes
1answer
427 views

How do I bind to a specific link local IPv6 address other than the default?

I'm not 100% sure I'm using the correct terminology in the title, so if someone knows better than I do please amend it. I'm trying to replicate a malicious script that I've seen in the wild for the ...
1
vote
1answer
8k views

How to communicate between two VirtualBox VMs running on same host

I am running two VM instances of RHEL/CentOS on my VirtualBox instance running on host Windows 7. The problem is when I am executing VBoxManage list vms -l | more and then sunsequently VBoxManage ...
0
votes
2answers
64 views

How can 2 or more instances of the same program to communicate in local network? [closed]

I want to create program which will be in use for few computers connected in local network. Basically the program aim is to keep track of all tables in a bar ( lets say ), which are reserved. When ...
0
votes
1answer
728 views

cannot start mysql server bind socket denied

I have been trying to start mysql server but got this error: Can't start server : Bind on unix socket: Operation not permitted 2013-10-21 13:53:54 25098 [ERROR] Do you already have another mysqld ...
1
vote
1answer
263 views

CPU and motherboard compatibility

I used CPU-Z to identify my socket and it said 479 mPGA. Also got chipset information and used intel site to check out compatible processors. Turns out a lot of processors were compatible with the ...
0
votes
0answers
64 views

Security risks and prevents for sending files over sockets

I am attempting to do Raspberry Pi development and at the moment, I'm normally writing all of the Python code on my laptop and then would have to use a SSH client to send the files across. I've ...
2
votes
1answer
2k views

Dovecot.conf assistance since upgrade

I've been following a guide on this site: http://oskarhane.com/setup-your-own-mail-hosting-with-linux-postfix-dovecot-and-mysql/ To install postfix with dovecot and mysql on a Linux server. All ...
1
vote
0answers
53 views

Communicate a button click event with sockets

Desire: I have a device or micro-controller i'll call it a mc that I need to communicate to when a web page button is clicked using sockets. MC1 <button id ='on1' name='mc1'>On</button> ...
2
votes
0answers
9k views

socket.error: [Errno 10013] Port forbidden access permissions

When trying to use a Python script I get this error: socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions I put the post on ...
1
vote
1answer
80 views

Why is it possible to continue working in a ssh session after a network disruption?

What enables the Secure Shell client and server to resume communication after one or several network interfaces in the communication path between them is shut down and re-appears some moments later? ...
1
vote
1answer
794 views

How do I prevent Linux kernel from responding to incoming TCP packets?

For my application, I need to intercept certain TCP/IP packets and route them to a different device over a custom communications link (not Ethernet). I need all the TCP control packets and the full ...
1
vote
1answer
71 views

TCP vs UDP Error-Checking

I've bounced upon two articles that describe in-depth on how TCP and UDP connections work. However there is some kind of inconsistency. Where one article tells me that UDP does no Error-Checking at ...
1
vote
1answer
4k views

What do Intel's socket package specifications mean in detail?

What is the difference between FCPGA988 PGA988 rPGA rPGA988B BGA1224 FCBGA1224 Do some mean that the BGA is soldered to the board and cannot be removed? BGA is soldered versions only, right? ...
0
votes
1answer
700 views

How to explicitly free EADDRINUSE port for binding it again?

$ testOnDemandRTSPServer ... Play this stream using the URL "rtsp://192.168.90.2:8554 ... ^C $ testOnDemandRTSPServer Failed to create RTSP server: bind() error (port number: 8554): Address already in ...
0
votes
1answer
84 views

LGA 1155 Socket

I have an ASUS CM6850 Motherboard and SIW reports: Manufacturer ASUSTeK Computer INC. Model CM6850 Version Rev 1.xx Bridge North Bridge Intel Sandy Bridge Revision 09 South Bridge Intel H67 ...
6
votes
2answers
3k views

How to determine the socket connection up time on Linux

I can verify that the connection is up: $ netstat -tn | grep "192.168.2.110" tcp 0 0 192.168.2.100:10444 192.168.2.110:52639 ESTABLISHED is there a way to check how long this tcp port ...
0
votes
1answer
292 views

getting global IP address when using a vpn

How can I get my global IP address? I can see my global IP address via a site: www.whatismyipaddress.com It shows correctly about information of my computer including IP address. But if I use a VPN ...
0
votes
2answers
997 views

Can I create a socket file on Mac?

I am missing /tmp/mysql.sock. It has signature srwxrwxrwx. Is it possible to create this file by hand?
12
votes
1answer
900 views

Determining what process has bound a port (without listening) on Windows

If I want to find out what process is listening on what socket, I can use netstat/TCPview and will immediately see it. However, it is possible to bind to an address without listening. If this is done, ...
6
votes
3answers
4k views

sshfs mounting linux directory from mac stopped working

Until this morning, I'd been using sshfs quite nicely to mount a directory from a linux machine in my office. Today, it stopped. Here's my sshfs command: sshfs -osshfs_sync,volname=linux-builder3 ...
1
vote
1answer
716 views

Can Connectify Dispatch be used for video streaming?

Here is my situation. We are specialized in video producing local sports for web-streaming. In most cases clients provide us with poor bandwidth, which is absolutely critical for us. There is a ...
0
votes
2answers
981 views

port forwading to make a server on my computer

I tried to make a chat program with java. i succeed when i use the ip of 127.0.0.1 to connect. Socket socket = new Socket("127.0.0.1",5005); it all worked great on my computer and the program even ...
-1
votes
2answers
3k views

Is it possible to upgrade the AMD E-300 APU on a laptop?

I read that this processor is BGA. That would mean that it is soldered to the motherboard? Can an average laptop technician replace it? This processor is very slow, it scores only 600 on the Passmark ...
3
votes
1answer
203 views

No-socket alternative to tmux or screen

My university gives each student a directory on their AFS which is accessible via SSH. There is a (light) CLI-driven piece of software that I would like to run continuously from the university. I ...
2
votes
1answer
401 views

Simulating a network issue for a specific application

This is somehow a developer question, but as it is more related to operating systems and network connections, I will post it here and not on Stack Overflow. I'm trying to simulate a situation when a ...
1
vote
0answers
365 views

websocket behind a firewall

I have a computer with a strong CPU and a lot of memory (strongy) running Windows Server 2008 R2, that is blocked by a firewall from any access from the outside world. I have a computer with a weak ...
0
votes
1answer
69 views

Can socket files cause storage system atrophy?

I was thinking about setting up a web server on a Raspberry Pi, RPi boots from an SD card. The server is meant to be able to be in operation for a very long time, 10 years is it's expected life span. ...
3
votes
1answer
582 views

How do I run mysqld as a regular non-daemon program?

I'd like to run a local copy of mysql, to keep software development environments isolated. However, I can't seem to get the mysqld server to start up. I've created a database directory with ...
1
vote
1answer
941 views

Too many open files on socket

I have a big problem and that is that my company's production application which I unfortunately can't shutdown and restart ( I am unsure how, and I don't want to do any mistake) is spitting out a lot ...
0
votes
2answers
86 views

Is it possible to see content of TCP/IP connection?

This is a bit weird. I want to see the content of all TCP/IP connections coming in/out of the system. Is any of this possible on the same machine? I know I won't be able to see encrypted content but ...
0
votes
1answer
598 views

Not receiving responses sent from a different subnet when my machine is on DHCP

I am building a utility to communicate with some hardware that comes with a default IP address of 10.0.0.1 and subnet mask 255.255.255.0. The hardware replies to UDP messages on the same IP and port ...
1
vote
4answers
6k views

Send message to specific port on Windows cmd.exe

I'm playing with a program on desktop. It's listening on port 5060. However, I don't have anything sending to this location/host. If I open my laptop's command line, is there a way to send a ...
2
votes
2answers
6k views

TCP: Maximum number of connections (client and server)

In the description of TCP in the Wikipedia, it is stated that The number of sessions in the server side is limited only by memory and can grow as new connections arrive, but the client must ...
4
votes
2answers
11k views

How can I show only 127.0.0.1 traffic using Wireshark?

Every time I try to filter to just show a specific IP address, I get an error indicating that it is "not an interface or a field." I have no idea what that means. Furthermore, I don’t really see any ...
0
votes
2answers
445 views

How does the OS generate a random socket port?

I'm wondering how the OS makes sure that the clients don't get the same "random"(binding the socket by setting the port to 0) port as any other client in the network, since I want to communicate using ...
15
votes
2answers
14k views

linux named sockets howto

I know that there are named sockets & named pipes (fifo) in linux. In ls -l, they would look as below:(I have changed the filenames, for demonstration.) prw-r--r-- 1 root root 0 Nov 8 16:31 ...
4
votes
1answer
773 views

How does SSH tunneling work at low level?

I am interested in the exact mechanism that occurs when an SSH tunnel is stablished. Supposing we have 3 computers: LOCAL host, INTERMEDIATE host, and REMOTE host, with this topology: Localhost --- ...
0
votes
1answer
165 views

How to fix 0x800CCC0E Error Codes?

I recently started receiving the above-mentioned error which is apparently a Winsock error message it is preventing me from checking my e-mail with Gmail, although there is no problem with my e-mail ...
-2
votes
2answers
620 views

Meaning of “netcat can be used as a backdoor” [closed]

I recently read about netcat and it is often mentioned that it could be used as a "backdoor". What exactly is meant by backdoor? Could some one give an example of such usage of netcat.
19
votes
3answers
13k views

Can I monitor a local unix domain socket like tcpdump?

I'd like to monitor responses on a unix socket without disturbing the original connections and pipe them to a script for processing. I know how to do this with tcpdump for tcp connections but I ...
1
vote
1answer
488 views

Restricted ports to non-admins on Windows 7

I work in a restrictive desktop/network environment and I am not an admin on my laptop. The ports available to me are limited. E.g. when I tried running Tomcat, the system refused to open a socket ...
0
votes
1answer
353 views

Where to put unix sockets

I am new to this, so sorry if its obvious. I am running a debian server and installing the likes of UWSGI, NGinx etc on there. The configurations keep talking about pointing to "sockets". In the ...
5
votes
1answer
810 views

Bridging two sockets

I wondered if it is possible to bridge two incoming tcp sockets. For example: Client A -----> Server <----- Client B The the server sends it's magic to both clients and then they connect ...
2
votes
1answer
567 views

inetd analog for Windows

Need a better analog of inetd daemon for Windows. Currently using http://sourceforge.net/projects/winetd/, but it's outdated with bugs present. Please recommend any better solutions for running your ...
0
votes
2answers
1k views

SSH over local unix socket

I'm trying to make a tunneling application to use SSH over a HTTPS connection, with a custom client and server at each end, where the custom client opens a unix socket that can communicate with the ...
1
vote
1answer
565 views

fcgiwrap listening to a unix socket file: how to change file permissions

I have a web server (nginx) and a CGI application (gitweb) that is ran with fcgiwrap to enable Fast CGI access to it. I want the Fast CGI protocol to take place over a unix socket file. To start the ...
1
vote
1answer
686 views

ARP: 'Who has' broadcast resulting in TCP segment losses

I have an issue with a simple TCP connection between two PCs (both Windows XP SP3) connected by direct wire to each other. These PCs have IP address 10.10.10.1 (server) and 10.10.10.2 on the network ...
2
votes
1answer
720 views

Disconnect a Program from its Socket or Port in Windows 7

I am working on a hack for internal purposes whereby I want to disconnect a program from it's socket without killing the process. For example, program A (running xxx.exe) is running on port 50000 and ...
1
vote
2answers
1k views

Socket error sending data from Loftware to Zebra ZM400

I am occasionally experiencing problems with my Zebra ZM400 printer. When I print a label from Loftware, sometimes the label does not print. When this issue occurs, I can't ping the printer nor can ...