Contents
vii
Changing the Administrator Login Timeout
..............................................................
5-2
Configuring Basic Firewall Services
...............................................................................
5-2
Blocking Keywords, Sites, and Services
..................................................................
5-3
How to Block Keywords and Sites
...........................................................................
5-3
Rules
..............................................................................................................................
5-5
Inbound Rules (Port Forwarding)
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5-7
Inbound Rule Example: A Local Public Web Server
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5-7
Inbound Rule Example: Allowing Videoconferencing
........................................
5-9
Considerations for Inbound Rules
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5-9
Outbound Rules (Service Blocking)
.......................................................................
5-10
Outbound Rule Example: Blocking Instant Messenger
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5-10
Order of Precedence for Rules
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5-12
Services
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5-13
How to Define Services
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5-13
Setting Times and Scheduling Firewall Services
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5-14
How to Set Your Time Zone
...................................................................................
5-14
How to Schedule Firewall Services
........................................................................
5-16
Chapter 6
Managing Your Network
Backing Up, Restoring, or Erasing Your Settings
...........................................................
6-1
How to Back Up the Configuration to a File
.............................................................
6-1
How to Restore a Configuration from a File
.............................................................
6-2
How to Erase the Configuration
...............................................................................
6-2
Upgrading the Gateway’s Firmware
...............................................................................
6-2
How to Upgrade the Gateway Firmware
..................................................................
6-3
Network Management Information
.................................................................................
6-4
Viewing Gateway Status and Usage Statistics
.........................................................
6-4
Viewing Attached Devices
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6-8
Viewing, Selecting, and Saving Logged Information
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6-8
Selecting What Information to Log
..................................................................
6-10
Saving Log Files on a Server
..........................................................................
6-11
Examples of log messages
....................................................................................
6-11
Activation and Administration
..........................................................................
6-11
Dropped Packets
.............................................................................................
6-11
Enabling Security Event E-mail Notification
.................................................................
6-12