48
•
Block IP Address URLs—this setting prohibits users from browsing any web sites via
IP addresses instead of domain names.
•
Allow Non-HTTP Traffic Through the Web Filter—this setting allows Non-HTTP traffic
to pass through port 80 or the designated parent proxy port for web traffic.
•
Non-HTTP Traffic Socket Timeout (in minutes)—this setting allows you to set a time
limit in minutes for how long Non-HTTP traffic can pass through port 80 or the
designated parent proxy port for web traffic.
•
Force HTTP v1.0—this setting allows you to force web browsers to use HTTP version
1. HTTP v1.0 is the first protocol revision for HTTP traffic and is still in wide use,
especially by proxy servers.
Again, you can disable or enable any of these options by selecting the sub-tab of each
selection, and then checking the check box next to the settings. Again, don’t forget to Save
your changes. If you create a new IUR, the following table lists the default settings. All
other options will be disabled.
New IUR Default Settings
TFRS Spyware
Anti-Virus
Web Filter
Enable Spyware URL Blocking,
Enable Spyware MD5 Blocking,
Enable Spyware ClassID Blocking
Enable Anti-Virus Blocking
Filter Avoidance
Web Policy
Enable Filter Avoidance IP
Lookup, Enable Filter
Avoidance Real-Time Filter,
Enable Filter Avoidance
Deep HTTP Inspection
Real-Time Filter, Allow Non-HTTP
Traffic Through the Web Filter,
Non-HTTP Traffic Socket Timeout
(60 minutes)
Now that you are familiar with both the Content Filtering and Advanced Filtering tabs, let’s
discuss the default Internet Usage Rules and how to create a new one.
Internet Usage Rules
Optinet has 8 default Internet Usage Rules (IURs). These IURs correspond to the default
groups available with Optinet. Remember that the method is to create a group and then
assign that group an IUR. Because Optinet has 8 default groups, their IURs are also
available. The following are the pre-defined IURs and their settings.
Default Usage Rules are the default settings for all users unless configured otherwise. By
default, this IUR will log and filter only HTTP traffic. This IUR will not block any Web sites,
File Types, or MIME Types except spyware and viral web sites. The following table lists all
filtering options for the Default Usage Rules.
Default Usage Rules
TFRS Spyware
Anti-Virus
Web Filter
Enable Spyware URL Blocking,
Enable Spyware MD5 Blocking,
Enable Anti-Virus Blocking