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Install nc netcat on linux how to#
Install nc netcat on linux install#
Install nc netcat on linux code#

Install nc netcat on linux how to#

How to Create a Simple Chat with netcat in LinuxĪs you can see netcat is a great tool for TCP/IP networking and it is one of the most favorite tools of sysadmins when it comes to do networking related troubleshooting and experimentation.

How to use Linux Netcat Command as Port Scanner.

Output will look like this tcp6 0 0 :::2424 :::* LISTEN 15665/nc 12) Stream a video file from a server for client to watch the streamed video using video player (e.g., mplayer) nc -6 -l 2424Ĭheck if it works with the command below sudo netstat -nap | grep 2424 You can use the following command to allow nc use IPv6 address when listening on a TCP port. 11) Listen on a TCP port using IPv6 address While true do sudo nc -lp 80 < test.html done Note that you must run with sudo privileges as 80 is in range of well known ports (1-1023) 192.168.40.144) to start a web server that serves test.html on port 80. Run the command below on local host (e.g. 10) Run a web server with a static web page

192.168.40.146) run the following command: nc 192.168.40.144 2424Īfter running these commands, anything typed in both terminals will be seen on both host machines. On the remote host run the following command: cat /path/to/ | nc 192.168.40.144 2424 9) Run insecure online chat between two hosts On the local host run: nc -lp 2424 | gunzip -c | sudo dd of=/dev/sdc dev/sdc) from a compressed disk image stored in a remote host On the local host run the following command: dd if=/dev/sdc | gzip -c | nc 192.168.40.146 2424 8) Restore a hard drive (e.g. On the remote host run: nc -lp 2424 | sudo dd of=/path/to/ On the sender host run the following command: tar cvf - /path/to/dir | nc 192.168.40.146 2424 7) Create a compressed backup of hard drive (e.g., /dev/sdc) on a remote host On the receiver host run: nc -l 2424 | tar xvf. 6) Transfer a whole directory (including its content) from one host to another make sure to allow incoming connections on 2424 port on the receiver host. This will copy test.txt file from sender host to receiver host via 2424 port. The command above will send a test UDP packet with 1 second timeout to a remote host at port 2424 5) Copy a file (e.g., test.txt) from one host to another

Output will show only the ports which allow udp connections. Nc: connect to 192.168.40.146 port 25 (tcp) failed: Connection refused 3) Perform UDP port scanning against a remote host nc -vnzu 192.168.40.146 1-65535 Nc: connect to 192.168.40.146 port 24 (tcp) failed: Connection refused Nc: connect to 192.168.40.146 port 23 (tcp) failed: Connection refused Output will look like this nc: connect to 192.168.40.146 port 20 (tcp) failed: Connection refused The command below will check the ports from 20 to 25 on the remote host and print the result. SSH-2.0-OpenSSH_7.6p1 Ubuntu-4 2) Perform TCP port scanning against a remote host Output if the port on remote server is opened (e.g. Output if the 2424 port on remote server is closed nc: connect to 192.168.40.146 port 2424 (tcp) failed: Connection refused 1) Test if a particular TCP port of a remote host is open nc -vn 192.168.40.146 2424 Otherwise, you can run nc as a normal user. Netcat Examplesīefore starting to explore some netcat commands it's important to know that if you are binding to well-known ports (0-1023) with nc, you need root privilege. To also remove the files that configure created, run make distclean command.

Install nc netcat on linux code#

You can remove the program binaries and object files from the source code directory by typing make clean. Once configure has been successfully finished run: sudo make

Install nc netcat on linux install#

To install it type the following command: apt-get install build-essential configure command, make sure you have installed gcc compiler.

If you are getting error message like this - "no acceptable C compiler found in $PATH" when running.