You can harden Communication Manager 7.1.2 and later to reduce vulnerabilities and enhance the security of the Communication Manager application. Hardening the Communication Manager provides an additional security mechanism to your application.

If you are upgrading from Communication Manager Release 7.1.2 or later to Communication Manager Release 8.0 or later, the settings for the following commands are automatically carried forwarded to Communication Manager Release 8.0 or later:

For Selinux settings, a prompt appears when you log in to Communication Manager Release 8.0 or later. Verify the restored values, and if the values do not match, you must run setCMSelinux command to set the selinux to the correct value. Any MUDG hardening using MUDG_part1 or its alias, setCMHardening must be done again in Communication Manager Release 8.0 or later.