Step::1 Login to WHM root and go to Plugins section
Step::2 Click over ConfigServer Security & Firewall
Step::3 Now go to the CSF tab and click on Firewall Configuration
Step::4 Next click on the drop down menu and choose Process Tracking
Step::5 Set here the User Process Tracking(PT_USERPROC). This option enables the tracking of the number of process any given account is running at one time.
For example we are setting this value to 10 which means if the user’s process is more or equal to 10 then the user’ s process will be automatically killed.
Step::6 Make sure you have Switched ON the option PT_USERKILL
In this way you can limit & kill high user process of all cPanel users.
Visit our Blog for more details. You can also watch the video here.