Cisco Cisco Web Security Appliance S170 사용자 가이드

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Cisco IronPort AsyncOS 7.0 for Web User Guide
OL-23079-01
Chapter 1      Getting Started with the Web Security Appliance
What’s New in This Release
The AVC engine is an acceptable use policy component that inspects web traffic 
to gain deeper understanding and control of web traffic used for applications. 
Application control gives you more granular control over web traffic than just 
URL filtering. For example, you can block streaming media from sports sites, but 
not news sites.
To control applications using the AVC engine, enable the AVC engine when you 
enable Cisco IronPort Web Usage Controls, and then define application control 
settings in the Access Policies.
For more information, see 
.
New Feature: Safe Search and Site Content Rating Enforcement
AsyncOS for Web 7.0 uses the AVC engine to filter adult content from some web 
searches and websites. You might want to do this to allow access to these sites, 
such as google.com and youtube.com, while still restricting potentially unsafe 
content from reaching users.
AsyncOS for Web offers the following features to filter adult content:
  •
Enforce safe searches. Most search engines allow the safe search feature to 
be enabled and disabled by end users. You can configure the Web Security 
appliance so that outgoing search requests appear to search engines as safe 
search requests. This gives the control to an administrator on the network 
instead of the end user. You might want to do this to prevent users from 
bypassing acceptable use policies using search engines.
  •
Enforce site content ratings. Many content sharing sites that serve 
user-generated photos and videos classify some of their content as adult. They 
allow users to restrict their own access to the adult content on these sites by 
either enforcing their own safe search feature or blocking access to adult 
content, or both. This classification feature is commonly called content 
ratings.
To enforce safe searches and site content ratings, configure the URL filtering 
settings for an Access Policy.
For more information, see 
.