Content Filtering - NETGEAR UTM9S Reference Manual

ProSecure Unified Threat Management (UTM) Appliance
days of the week and time of day for each schedule. For more information, see
Schedule to Block or Allow Specific Traffic
• QoS profile. You can define QoS profiles and then apply them to outbound rules to
regulate the priority of traffic. For information about how to define QoS profiles, see
Create Quality of Service Profiles
• Bandwidth profile. You can define bandwidth profiles and then apply them to outbound
rules to limit traffic. For information about how to define bandwidth profiles, see
Bandwidth Profiles

Content Filtering

If you want to reduce traffic by preventing undesired emails from reaching their destinations
or by preventing access to certain sites on the Internet, you can use the UTM's
content-filtering feature. By default, this feature is disabled; all requested traffic from any
website is allowed with the exception of web content categories that are mentioned in
Email and Web Scan Settings
• Email content filtering. To reduce incoming email traffic, you can block emails with large
attachments, reject emails based on keywords, file extensions, or file names, and set
spam protection rules. There are several ways you can reduce undesired email traffic:
- Setting the size of email files to be scanned. Scanning large email files requires
network resources and might slow down traffic. You can specify the maximum size of
the files or messages that are scanned, and if files that exceed the maximum size are
skipped (which might compromise security) or blocked. For more information, see
Customize Email Antivirus and Notification Settings
- Keyword, file extension, and file name blocking. You can reject emails based on
keywords in the subject line, file type of the attachment, and file name of the
attachment. For more information, see
- Protecting against spam. Set up spam protection to prevent spam from using up
valuable bandwidth. For more information, see
page 186.
• Web content filtering. The UTM provides extensive methods to filter web content in
order to reduce traffic:
- Web category blocking. You can block entire web categories because their content
is undesired, offensive, or not relevant, or simply to reduce traffic. For more
information, see
- Keyword and file extension blocking. You can specify words that, should they
appear in the website name (URL), file extension, or newsgroup name, cause that
site, file, or newsgroup to be blocked by the UTM. For more information, see
Configure Web Content Filtering
- URL blocking. You can specify up to 200 URLs that are blocked by the UTM. For
more information, see
- Web services blocking. You can block web services such as instant messaging,
peer-to-peer and media applications, and tools. For more information, see
Web Protocol Scan Settings and Services (Web Applications)
on page 158.
on page 160.
on page 176.
Configure Web Content Filtering
on page 199.
Configure Web URL Filtering
Network and System Management
392
on page 163.
on page 179.
Email Content Filtering
Protect Against Email Spam
on page 199.
on page 206.
Set a
Create
Default
on page 183.
on
Customize
on page 194.