User`s guide

Chapter 2 Headquarters configuration
12
• Rules Allow popular search engines and Remove advertisement and banners can be
used according to your needs.
• Rule Deny sites rated in Kerio Web Filter categoriescan be used to block all users access
to pages with erotic contents.
Use the Select Rating... button to select Kerio Web Filter categories that will be blocked.
Then select appropriate categories in the Pornography /Nudity section to deny access
to pages with erotic/sexual content.
On the Advanced tab, enter the text which will be displayed if a user to access a page
with forbidden content or set redirection to another webpage.
Restrictions of web pages with job offers
To restrict access to websites with job offers, use the following rules:
1. Add a rule allowing users from the Human Resources Department group to access pages
categorized by Kerio Web Filter as Job Offers.
2. Behind this rule, add a rule blocking access to the same category for any other users.
It is recommended not to require user authentication in this rule. This prevents from
redirecting unauthenticated users’ browser to the authentication page before showing the
information that the page is blocked.
User authentication for accessing Websites
The last optional restriction is user authentication while accessing Web pages. To enable this
feature, use the corresponding option under Users and Groups → Users, the Authentication
Options tab.
User authentication is performed within redirection to the WinRoute web interface’s authen-
tication page. It is necessary that the web interface is enabled and all its parameters set
correctly (refer to chapter 2.7). Upon entering a valid username and password, the browser
will be redirected to the solicited page.
HTTP Cache Configuration
Cache accelerates access to repeatedly opened Web pages, thus reducing Internet traffic. Cache
can be enabled from the Enable cache on transparent proxy and the Enable cache on proxy
server options in Configuration → Content Filtering → HTTP Policy.
With respect to free disk space, modify the cache size. The 1 GB (1024 MB) value is set by the
default, the maximum value is almost 2 GB (2047 MB).