Apple Mac OS X Server (Administrator’s Guide) - Manual (Page 532)

532 Chapter 15
To set Firewall service to start automatically each time your computer starts
up:
1 In Server Settings, click the Network tab.
2 Click Firewall and choose Configure Firewall.
3 Select “Start Firewall at system startup,” then click Save.
Editing IP Filters
If you edit a filter after turning on Firewall service, your changes affect connections
already established with the server. For example, if any computers are connected to your
Web server, and you change the filter to deny all access to the server, connected computers
will be disconnected.
If you delete a port from the filter list, all IP filters for that port will also be deleted.
To edit IP filters:
1 In Server Settings, click the Network tab.
2 Click Firewall and choose Show Firewall List.
3 Select a filter and click Duplicate, Edit, or Delete. If you are deleting a filter, you’ve finished.
4 Make any changes to the settings, then click Save.
Creating an IP Filter
IP filters contain an IP address and a subnet mask. You can apply a filter to all IP addresses, a
specific IP address, or a range of IP addresses.
To create an IP filter:
1 In Server Settings, click the Network tab.
2 Click Firewall and choose Show Firewall List.
3 Click New, or select a port or address that has a filter similar to the one you want to create,
and click Duplicate.
4 Select whether this filter will allow or deny access.
5 Choose a port number from the pop-up menu, or enter the port number.
If you select a nonstandard port, you can enter a name that indicates the port’s use, such as
Web or Apple file service.
6 Select the IP addresses that you want to filter.
If you choose a range of addresses, enter the beginning IP address for the range.
If you don’t know the IP address, click Find IP Address to search for an IP address. A search
returns one IP address from the domain name you specified.