Setup guide

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Chapter 4 –
Configuring System Settings
application. Only the settings that are handled within the System Preferences
program are addressed here.
The Firewall panel in the System Preferences application does not allow the
administrator to manage protocols other than incoming TCP. If managing UDP or
other protocols is necessary, either ipfw (provided with Mac OS X) or a third-
party tool should be used to configure the firewall.
Only TCP ports are managed through the
Firewall panel. If only the Firewall panel
is used to manage the firewall, UDP
packets will not be filtered.
To start the firewall:
1. Click on the Firewall button in the Sharing panel (Figure 14).
Figure 14: Firewall Configuration Panel
2. Make sure all checkboxes are unchecked in the list in the Allow panel.
If any services were enabled in the
previous section, they will be marked as
allowed here. If these services are to be