I have used exec 3<>/dev/tcp/192.168.0.101/6435
to establish a TCP connection with 192.168.0.101:6435. And I have received as well as sent a few messages with the pipe
command.
Now, I want to terminate the TCP connection. But, with ss -anpet
I can see that bash itself holds this connection, without forking a child process.
I tried to send signal 9 and 15 to the bash process, but as you know, bash cannot kill itself.
So, can I terminate the TCP connection I have established without terminating the pts I am using (neither killing it by root nor sending Ctrl+D)?
Best Answer
That command opened the connection on file descriptor 3. So to close the connection, you need to close file descriptor 3. To do so: