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4.5.2 URL Filter
You can specify keywords or web addresses to prevent access to
specific URLs.
NOTE
: The URL Filter is based on a DNS query. If a network client has
already accessed a website such as http://www.abcxxx.com, then the
website will not be blocked (a DNS cache in the system stores previously
visited websites). To resolve this issue, clear the DNS cache before
setting up the URL Filter.
To set up a URL filter:
1. From the navigation panel, go to
Advanced Settings
>
Firewall
>
URL Filter
tab.
2. On the Enable URL Filter field, select
Enabled
.
3. Enter a URL and click the
button.
4. Click
Apply
.
4.5.3 Keyword filter
Keyword filter blocks access to webpages containing specified
keywords.
To set up a keyword filter:
1. From the navigation panel, go to
Advanced Settings
>
Firewall
>
Keyword Filter
tab.
2. On the Enable Keyword Filter field, select
Enabled
.
3. Enter a word or phrase and click the
Add
button.
4. Click
Apply
.
