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1answer
25 views

How would one pipe from socat to sed to bc to xargs?

I have a server outputting some numbers, I'm reading them with socat, then using sed, I turn those numbers into some math equations, I run them with bc, then I need to pipe them into xargs. socat -u ...
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12 views

X11 forwarding over two hops using socat

I have following topology: PC1 <----> (PUBLIC-IP) dom0 (192.168.1.254) <----> (192.168.1.55) domU I want to start GUI application on domU and display it on PC1. For this purpose ...
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26 views

How can I allow Windows RDP ports with socat?

192.168.0.21 is a Windows 8.1 PC running RDP. Using Linux I am running socat as below, but cannot connect on port 5900 to 3389. How do I make TCP and UDP traffic on 5900 go to 3389? socat ...
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38 views

Does socat connects two rs232/COM1/serial ports with null modem cable

I have box A under which two virtual machines B and C are running. Each one of this virtual machines exposes it's COM1/rs232/serial port to machine A as TCP port. The virtual machines are Xen HVM ...
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2answers
31 views

How to make sed print to the end of line from socat

I have a server which sends data in a UDP Broadcast on port 10552. The data is 7 numbers separated by commas as so. 5.351204,0.001968,-0.000473,-0.999222,0.000451,0.001455,1.084310 I fetch this ...
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0answers
29 views

socat buffering … how to avoid buffer blocking

i am using (playing with, to try it out) socat to relay TCP through SCTP with commands like: on the local host: socat tcp4-listen:10022,rcvbuf=1,reuseaddr sctp4:remotehost:9999,rcvbuf=1 on ...
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0answers
32 views

Forward HTTP traffic to a server behind gateway

I have a server behind gateway, which means it’s only pingable internally. Now I want to forward traffic from a outside server to this internal server. I want to use socat like: socat ...
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2answers
44 views

Forwarding a TeamSpeak instance

I’m trying to setup up a TeamSpeak3 server on my home network "net1.mydomain". It uses an IPv4 subnet of 10.0.0.0/8 in LAN; internet access using IPv4 is possible via CGN. This renders ...
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0answers
38 views

Make socat listen on both IPv4 and IPv6 stacks

Switched providers the other day, they only assign DSlite-connections. I'm fine, I thought. Thing is - I want to access some of my stuff from outside of my network, which should be of much less a ...
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1answer
48 views

Screen vs. socat

There is already a question: Screen fails to release pty and there is no answer (only a workaround has been provided so far). My case is different and I would like to know the answer to the original ...
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0answers
96 views

socat and serial ports (Linux)

I'm having some issues with using socat against a serial port (on the other end is an FTDI chip) the command I'm using is socat -x ...
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1answer
63 views

How to create a simple reverse proxy exposing multiple services under single port

The common problem with microservices is that developing them can be cumbersome if you use AJAX and try to read input from multiuple hosts/ports (due to cross domain requests). I am looking for a ...
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1answer
123 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
194 views

socat as argument to ssh: “bash: socat: command not found”

If I ssh into an osx box from a linux box, issuing socat works fine. However, if I give the socat command as argument to ssh it fails. socat was installed in osx using brew. Any idea why this is ...
1
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1answer
102 views

Screen fails to release pty

On my linux box, when using screen I can open, read and write to a pseudo terminal with screen. After closing it (C-a k y) I can't connect to it again, without restarting socat, which provides the ...
0
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1answer
200 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 ...
3
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1answer
880 views

Impersonate a serial device with socat

I am trying to use socat to impersonate an external serial device. If I do this in one terminal: sudo socat -ddd -ddd PTY,raw,link=/dev/ttyS32,echo=0 READLINE and run this simplified version of my ...
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0answers
741 views

connect to a serial device via TCP socket

My setup is this: serial device ttyUSB0 connected to laptop A software that opens TCP socket to listen and write to, also runs on laptop A (linux) My goal is to pipe data from/to serial device ...
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0answers
89 views

How to redirect all traffic from one port to another host and port?

I have a socat running as redirector of traffic to another host, but it always hangs up and freeze. Maybe there is better options to do such a thing? My current command is: socat ...
0
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1answer
483 views

Connect COM1 port with socat

Is it possible to connect socat to the COM1 device? I am trying to use example from socat man page socat -,raw,echo=0,escape=0x0f /dev/ttyS0,raw,echo=0,crnl and replace device name /dev/ttyS0 with ...
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0answers
231 views

Forward IPsec tunnel from IPv4 endpoint to IPv6 endpoint

I have a new ISP and only have a Dual Stack - lite connection now. That means I can't access my router via IPv4 anymore, since the external IPv4 address is private. I have native IPv6 connectivity. ...
2
votes
1answer
966 views

Record multicast stream on multi-homed Linux host

I have what sounds like the simplest possible use case, and yet nothing is satisfactory. I have a multi-homed host and I would like to listen to multicasts on eth1, and shove all the payload (NOT ...
0
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2answers
593 views

ssh -R then expose the local port over HTTP?

Here's my scenario, I have two machines, A and B. A is behind a VPN, so B can't get to A. I have a web server: machine_a$ curl localhost:8088 "hello from machine_a" I have executed a remote SSH ...
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0answers
443 views

How to check if protocol 41 (6to4) is filtered by ISP without changing the network configuration?

Obvious way (just setting up 6to4 tunnel and pinging) fails because ip command seems to be read-only on my VPS: can't change any networking-related settings. So I try using raw sockets: ...
1
vote
1answer
448 views

Specifying startup commands with socat

I'm connecting to a simple server which is offering a basic text-based interface using socat like this socat readline TCP4:localhost:8090 There are some initial commands I have to execute every ...
2
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1answer
494 views

Dynamic proxy using HTTP CONNECT

My university provides internet access through an HTTP proxy which blocks POP, SMTP, and IMAP. To circumvent this, the IT department's "Internet setup guide" suggests to use socat: socat ...
2
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1answer
2k views

bidirectional socat functionality with nc

This is question is somehow related to How is it called when listening(connecting) two sockets and exchanging data between them? In the test setup I have three terminal windows open I run in Term1: ...
2
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2answers
8k views

Netcat/socat behavior with piping and UDP?

I guess this is close to linux - Netcat stops listening for UDP traffic - Super User, but I thought I'd better ask anyways As far as versions of netcat I'm using Ubuntu 11.04 and the default netcat ...