If you are a developer or system administrator working with PHP and Linux servers, you may encounter issues related to PHP sockets. In this quick guide, we will cover the steps for closing PHP sockets on the Linux command line.
Here are the steps for closing PHP sockets on Linux command line:
1. Use the lsof command to list all open files and sockets, and filter the results to show only TCP sockets:
sudo lsof -iTCP -sTCP:LISTEN
This command will display a list of all listening TCP sockets on the system, along with the associated process IDs.
2. Find the process ID (PID) of the PHP script that is listening on the socket you want to close. Look for the line in the output that corresponds to the socket you want to close, and note the PID in the second column.
3. Use the kill command to terminate the process:
sudo kill <PID>
Replace <PID> with the actual process ID you noted in step 2. This will send a SIGTERM signal to the process, asking it to terminate gracefully. If the process doesn't respond to this signal, you can try using the -9 option to send a SIGKILL signal, which will force the process to terminate immediately:
sudo kill -9 <PID>
Again, replace <PID> with the actual process ID.
Following these steps will help you close PHP sockets on Linux command line.