Firewall
Here are step by step instructions for Secureframe Agent (Mac, PC and Linux) for Firewall enforcement for user endpoints.
Windows:
Check settings in the Windows Security Center to enable the firewall.
Mac:
Ensure that Firewall is enabled (instructions here).
Linux:
This check is looking to see if the Debian Uncomplicated Firewall (UFW) is installed and configured. More information on Uncomplicated Firewall (UFW).
* If your Linux device is not 'checking in' after restarting, please refer to this article.