NetCat(nc / ncat) on CentOS Linux
1. IF server IP : 192.168.10.10 , client IP: 192.168.10.78
Server: listen for connections
$ ncat -l 8081
or bind a shell to tcp port 8081, limit access to hosts on local network, and limit the maximum nuber of simultaneous connection to 1
$ ncat --exec "/bin/bash" --max-conns 1 --allow 192.168.10.0/24 -l 8081 --keep-open
2. client connect to server port 8081
$ ncat 192.168.10.10 8081 # stand by typing any instruction
3. Send a file over TCP port 8081 from client to server
192.168.10.10$ ncat -l 8081 > tmpfile.log
192.168.10.78$ ncat 192.168.10.10 8081 < tmpfile.log # real file in this path
4. the udp option is -u, because ncat default protocol is tcp
(Figure 1. snipping of Man page )
references
https://www.linuxtechi.com/nc-ncat-command-examples-linux-systems/
https://www.tecmint.com/netcat-nc-command-examples/
Server: listen for connections
$ ncat -l 8081
or bind a shell to tcp port 8081, limit access to hosts on local network, and limit the maximum nuber of simultaneous connection to 1
$ ncat --exec "/bin/bash" --max-conns 1 --allow 192.168.10.0/24 -l 8081 --keep-open
2. client connect to server port 8081
$ ncat 192.168.10.10 8081 # stand by typing any instruction
3. Send a file over TCP port 8081 from client to server
192.168.10.10$ ncat -l 8081 > tmpfile.log
192.168.10.78$ ncat 192.168.10.10 8081 < tmpfile.log # real file in this path
4. the udp option is -u, because ncat default protocol is tcp
(Figure 1. snipping of Man page )
references
https://www.linuxtechi.com/nc-ncat-command-examples-linux-systems/
https://www.tecmint.com/netcat-nc-command-examples/
