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Skyhigh Security

Default Rule Set System

A system of default rule sets is implemented on Secure Web Gateway during the initial setup. These rule sets cover important fields of web security. Some of them have other rule sets embedded.

More rule sets can be imported from a rule set library. You can also create rule sets of your own and modify or delete existing rule sets.

When a request for web access or a response to this request is processed on Secure Web Gateway, the rules in the enabled rule sets are involved in the order that they take in this system, beginning at the top and accounting for all the changes that you have incorporated here.

When a rule applies, it is executed, which can result in stopping the process, for example, when a rule blocks a request. 

For more information about this process, see Filtering Process.

The latest version of the default rule system looks as shown in the table below. In older product versions, the default rule set system differed from this. Most of the rule sets in this system are also enabled by default.

For information about how to view this system on the user interface, see View the Default Rule System.

Rule set Description
Initial Rules
  • Set URL Filter Internal Settings
Uses an embedded rule set to enable an event that supports URL filtering.  
Bypass Microsoft (Office 365)
 Not enabled by default

Lets requests and responses that are sent to and received from Office 365 and other Microsoft services bypass filtering.

HTTPS Scanning  Not enabled by default

Prepares web traffic that is secured under HTTPS for processing by other filtering functions. For more information, see About HTTPS Scanning.

Remove Privacy Violation Header  Not enabled by default

Removes privacy violation headers from requests to prepare them for processing by other filtering functions.

Global Whitelist Lets requests for whitelisted URLs or IP addresses skip further filtering. For more information, see About Global Whitelisting.
Common Rules
  • Restrict Connect Ports

  • Handle Special Sites

  • Web Cache

  • Progress Indication

  • Enable Opener
Uses embedded rule sets to provide functions that support the filtering process, for example, web caching, progress indication, and opening of archives.
URL Filtering
  • Special URL Filtering Group

  • Default

Uses embedded rule sets to control filtering of individual URLs and URL categories. For more information, see About URL Filtering.
Media Type Filtering Controls filtering of particular types of media. For more information, see About Media Type Filtering.
Gateway AntiMalware Controls virus and malware filtering using virus signatures and proactive methods. For more information, see About Anti-malware Filtering.
Dynamic Content Classification

Controls dynamic classification of content.

This classification is performed in support of URL filtering.

For more information, see About URL Filtering.

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