|Firewall policy / Basic firewall configuration|
For more information, see Managing roles and sub-estates.
By default, the firewall is enabled. Occasionally, you may need to temporarily disable the firewall for maintenance or troubleshooting, and then re-enable it.
To turn the firewall off for a group of computers:
If you disable the firewall, your computers are unprotected until you re-enable it. To enable the firewall, clear the Allow all traffic check box.