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11.4 URL filter lists
In this menu you can define Internet access lists for the SX-GATE web proxy. These
lists will then be applied to certain users, IPs or networks in the web proxy configuration.
The URL filter has to be enabled and the lists must be assigned
in the web proxy configuration. Otherwise the URL filter lists
won't be considered at all.
In every URL filter list you can define your own list of domains and filename extensions.
An integrated, free of charge URL database or an optional commercial URL database
may be used to control access based on categories.
In the web proxy configuration access to a filter list is either
allowed or denied. Therefore you must not mix up contents
you want to allow and contents you want to deny in one single
list. Create two lists instead. Consider using postfixes in the list
names like e.g. "_accept" and "_deny" to indicate the intended
use.
If access is denied, a special page will be displayed to the user. URLs listed in the
"Advertising" database category are an exception. If the URL includes a filename
extension commonly used for images, access will be diverted to a transparent image
in order to hide advertising banners if detailed "Access denied" messages have been
enabled.
A table gives you an overview of all available objects. If there are more than 10 entries,
a navigation bar will appear below the right bottom hand corner of the table where you
can page through the entries or open the table in fullscreen mode. Pick an entry by
clicking either its title or the pencil icon to enter the detail view. Add new objects by
clicking "New Entry" below the table on the left. Use the dustbin icon to delete entries.
Name of list
Determine the name of the new URL filter list here.
Besides small letters and digits only dashes (-) and underscores
(_) are allowed. The name must begin with a letter. Particularly
space characters are not allowed.
