22
3
3.
Content Filtering
This chapter describes how to use content filtering s for the gateway. This chapter includes:
• Viewing or Emailing Logs
.
• Blocking Keywords, Sites, and Services
on page
22.
• Services
on page
23.
Viewing or Emailing Logs
Your gateway logs security-related events such as Denial of Service (DoS) attacks, hacker
probes, and administrator logins, based on the settings on the Logs screen. If you set up
content filtering on the Block Sites screen, you can also log when someone on your network
tried to access a blocked site. You can specify which events are logged and you can send the
logs to a Syslog server.
To view or email logs:
1.
In the main menu, under
Content Filtering, select Logs.
2.
To use email, fill in the
Contact
Email Address
and
SMTP
Server Name
fields.
3.
Select the
Enable
check box for
E-mail Alerts
.
4.
Click
Apply
so your changes
take effect.
5.
To email the log now, click
Log.
To delete all log entries. click
Clear Log
. To see the most recent entries, click
Refresh
.
Blocking Keywords, Sites, and Services
With its content filtering feature, the gateway prevents objectionable content from reaching
your computers. The gateway allows you to control access to Internet content by screening
