Strace
Which Linux process is using a particular network port?
Seeing the 'address in use' error or need to find out which process is listening to a particular port on Linux? Here are the tools to find out!
Strace cheat sheet
The strace utility is diverse and helpful in performance tuning, troubleshooting, and monitoring process activity. Get the most out of this powerful tool!
Monitor file access by Linux processes
Linux is powerful with the help of small utilities like lsof and strace. They help with monitoring disk and file activity, of new and running processes.