Questions tagged [netcat]
netcat is a command for performing read/write operations on TCP or UDP network connections.
netcat
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Can netcat (or some other tool) show when a connection is closed?
I have a server which is supposedly configured to close incoming connections that have been idle for 10 minutes, but I'm not sure it's actually doing that and want to test it. My first thought was to ...
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Why is nodemon specifically causing this "read error: 0: Resource temporarily unavailable" in my bash script when using netcat?
I have written a network client in bash using netcat which streams the stdout of a nodemon process to a remote server. This is my most complicated bash script I have written to date and the past ...
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2
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Why doesn't sed work with my netcat input?
netcat -k -l 10080 | grep --line-buffered "GET /" \
| cut -b6- | sed "s/HTTP.*//"
It works fine if I feed it a log file but when given the real thing it won't output.
So I tried ...
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timeout with netcat connection and established connection with netstat
I would like to check if there is a open port in remote machine, so I always use:
nc -zv 10.4.2.4 2760
Ncat: Version 7.92 ( https://nmap.org/ncat )
Ncat: TIMEOUT.
Like you see it gives me timeout. ...
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1
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connect_to localhost error while testing remote SSH connection with netcat from bash script
I'm writing a bash script that needs to maintain a SSH connection (SSH tunnel) to a remote host alive. I am checking whether connection on the remote IP exists with netcat -z, and if it doesn't, then ...
- 21
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How do I automate "ncat -nvlp 81" using nodejs?
What I'm trying to achieve here is to listen to a port for incoming data through a ngrok tcp tunnel.
I'm a tester and have very little knowledge on networking.
Can this be achieved using any npm ...
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24
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Troubleshooting Connection Refused Errors Across Nodes in Cluster Setup
I have three nodes bound to a virtual IP, with each node connecting using port 2892. I initiate connections from node1 to node2 and from node2 to node3, both using port 2892. Below are the relevant ...
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Redirect the stderr of a socat fork to separate process
I have a python program that is accessed via socat, so that stdin and stdout are provided and displayed on a client. I use:
socat TCP4-LISTEN:12345,reuseaddr,fork EXEC:"python prompt.py"
...
- 1,377
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Force https, non-www, and turn queries into paths
I posted a fairly incoherent request for help, which has been received. I have now gotten something that seems to work. It forces the use of "https://" in place of "http://; forces &...
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How do I add line breaks in netcat server mode?
I am using netcat server mode.
The client sends "Hello World!! 232733".
There is no line feed code at the end.
It will be displayed as below.
$ nc -lp 8080
Hello World!! 252733Hello World!! ...
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Cannot interact with netcat server over distance
My friend and I have ran netcat servers with the following commands
nc -nlvp 4444
nc -lvp 4444
We have also set it up so that any connections on port 4444 can go through the firewall. We have tested ...
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Run commands from another terminal over netcat connection (reverse shell)
I am currently trying to automate some privilege escalation tasks from CTFs. The goal is to write a python script that can execute commands on a target machine and then process them locally. It should ...
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im stuck trying to guess a password to a server im accessing through netcat for a ctf
im doing a ctf and given this server to netcat into but it requires a password and im given no info besides i have to guess the password? Any solutions guys?
i tried the netcat username then username ...
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1
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After converting multiple dataframes into respective nc files how to save those nc files with the original names and a word in windows using python
I have some nc files.Their names are File1.nc, File2.nc, File3.nc, etc. I have extracted data for every nc file, and I have made dataframe for each nc file after doing some calculation. Now after ...
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Connect to netcat listener from inside of the QEMU system
I have .cpio file containing a filesystem that is loaded as initrd for a QEMU emulation. Here's the run.sh script:
#!/bin/sh
qemu-system-arm \
-m 1024 \
-M virt,highmem=off \
-kernel ...
