Set Security Limits

Posted on Sunday March 13, 2016 / by Eric Potvin

You might need to protect your system against fork bomb attacks. A simple way to prevent this is by setitng up processes limit for your users. All the limits can be configured in the /etc/security/limits.conf file.

sudo vi /etc/security/limits.conf

This file comes with all the help you need. Here's an example:

user1 hard nproc 100
@group1 hard nproc 20

This will prevent users from a specific group from having a maximum of 20 processs and maximize the number of processes to 100 to user1.