Find Out What Is Using TCP Port 80 in Linux

Use /proc/$pid/exec file find out what is using port 80 First, find out the processes PID that opened tcp port 90, enter: # fuser 80/tcp Sample outputs: 80/tcp:              12161 21776 25250 25393 Finally, find out process name associated with PID # 3813, enter: # ls -l /proc/12161/exe Sample outputs: lrwxrwxrwx. 1 root root 0 Aug  …

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