This is a new feature introduced in cPanel version - 11.30
This feature will prevent users with terminal access (SSH or Telnet) from using up the system’s resources and potentially crashing your web server via a malicious attack known as a fork bomb.
When enabled, it will limit the following.
Limit Option Description
200000 -c Limits the maximum size of core files created.
200000 -d Limits the maximum size of a process's data segment.
200000 -m Limits the maximum resident set size.
100 -n Limits the maximum number of open-file descriptors.
8192 -s Limits the maximum stack size.
35 -u Limits the maximum number of processes available to a single user.
200000 -v Limits the maximum amount of virtual memory available for the process.
You can enable or disable the service from cPanel front end.
If you want to customize the service, you can modify the limits by editing /etc/profile file.
