Cisco Cisco Web Security Appliance S170 ユーザーガイド
17-8
Cisco IronPort AsyncOS 7.7 for Web User Guide
Chapter 17 URL Filters
Managing Updates to the Set of URL Categories
Controlling Updates to the URL Category Set
By default, URL category set updates occur automatically. However, because these updates may change
existing policy configurations, you may prefer to disable all automatic updates, including URL category
set updates.
existing policy configurations, you may prefer to disable all automatic updates, including URL category
set updates.
If you disable updates, you will need to manually update all services listed in the Update Servers (list)
section of the System Administration > Upgrade and Update Settings page. See
section of the System Administration > Upgrade and Update Settings page. See
To disable all automatic updates, see
. If you
use the CLI, disable updates by setting the update interval to zero (0).
Manually Updating the URL Category Set
Note
Do not interrupt an update in progress.
If you have disabled automatic updates, you can manually update the set of URL categories at your
convenience.
convenience.
Step 1
Navigate to the Security Services > Acceptable Use Controls page.
Step 2
Determine whether an update is available:
Warn Block
Monitor
Thus, use the least restrictive among the original
categories.
categories.
Warn
Monitor
•
Block or
•
Use Global Settings,
when Global is set to Block
when Global is set to Block
•
Block or
•
Use Global Setting, when Global is set to
Block
Block
Thus, use the most restrictive among the original
categories.
categories.
Block
Block
•
Monitor or
•
Use Global Settings,
when Global is set to Monitor
when Global is set to Monitor
•
Monitor or
•
Use Global Setting, when Global is set to
Monitor
Monitor
Thus, use the least restrictive among the original
categories.
categories.
Monitor
For policies in
which membership
is defined by URL
category:
which membership
is defined by URL
category:
Monitor
An action for this category is not
specified in this policy, but the
value in the Global Policy for this
category is Block
specified in this policy, but the
value in the Global Policy for this
category is Block
An action for Uncategorized URLs is not
specified in this policy, but the value in the
Global Policy for Uncategorized URLs is
Monitor
specified in this policy, but the value in the
Global Policy for Uncategorized URLs is
Monitor
Monitor
Table 17-2
Example Outcomes When Categories Merge
Original Category 1 Original Category 2
Uncategorized URLs
Merged Category