Apple Mac OS X Server (Administrator’s Guide) - Manual (Page 34)

34 Contents
Practical Example 521
Setting Up Sample Configuration Files 521
Configuring Clients 522
Check Your Configuration 523
Load Distribution With Round Robin 523
Setting Up a Private TCP/IP Network 523
Where to Find More Information 524
15 Firewall Service 525
Before You Set Up Firewall Service 527
What Is a Filter? 527
IP Address 527
Subnet Mask 527
Using Address Ranges 528
IP Address Precedence 529
Multiple IP Addresses 529
Practical Examples 529
Block Access to Internet Users 529
Block Junk Mail 530
Allow a Customer to Access the Apple File Server 530
Setting Up Firewall Service for the First Time 530
Managing Firewall Service 531
Starting and Stopping Firewall Service 531
Setting Firewall Service to Start Automatically 531
Editing IP Filters 532
Creating an IP Filter 532
Searching for IP Filters 533
Viewing the Firewall Log 533
Configuring Firewall Service 533
Setting Up Logs for Firewall Service 534
Viewing Denied Packets 535
Filtering UDP Ports in Firewall Service 535
Blocking Multicast Services in Firewall Service 536
Allowing NetInfo Access to Certain IP Addresses 536
Changing the Any Port (Default) Filter 537
LL9285.Book Page 34 Tuesday, June 25, 2002 3:59 PM