Cisco ISA550, Руководство администратора

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Security Services
About Security Services
Cisco ISA500 Series Integrated Security Appliances Administration Guide 244
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About Security Services
The security appliance supports a variety of UTM security services to provide the
Internet threat protection for your network. By default, all security services except
Network Reputation are disabled.
The following table lists all available security services on the security appliance.
Security Service Description
Anti-Virus Anti-Virus prevents network threats over a multitude of
protocols, including HTTP, FTP, POP3, SMTP, CIFS,
NETBIOS, and IMAP. See
Configuring Anti-Virus,
page 254 .
Application Control Application Control monitors and controls the use of
applications on your network. See
Configuring
Application Control, page 261 .
Spam Filter Spam Filter detects the email sender’s reputation
score. If the reputation score is below the threshold,
then the email is blocked or tagged as spam or
suspected spam. See
Configuring Spam Filter,
page 271 .
Intrusion Prevention
(IPS) IPS monitors network traffic for malicious or unwanted
behaviors and can react, in real-time, to block or
prevent those activities. See
Configuring Intrusion
Prevention, page 273 .
Network Reputation
Network Reputation blocks incoming traffic from IP
addresses that are known to initiate attacks throughout
the Internet. See
Network Reputation, page 283 .
Web Reputation
Filtering Web Reputation Filtering prevents client devices from
accessing dangerous websites containing viruses,
spyware, malware, or phishing links. See
Configuring
Web Reputation Filtering, page 277 .
Web URL Filtering Web URL Filtering allows you to block HTTP access to
malicious websites based on URL categories. See
Configuring Web URL Filtering, page 279 .