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Web Gateway 7.1.5 Product Guide - McAfee

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Authentication and access management<br />

Instant messaging authentication 5<br />

The action settings specify that the IM Authentication template is used for displaying the<br />

authentication message to the user.<br />

Show Authenticated page<br />

Always –> Redirect —<br />

Set User-Defined.logEntry =<br />

“[”<br />

+ DateTime.ToISOString<br />

+ “]””<br />

+ URL.GetParameter (“prot”)<br />

+ ““auth””<br />

+ Authentication.Username<br />

+ ““ ””<br />

+ URL.GetParameter (“scrn”)<br />

+ “““<br />

FileSystemLogging.WriteLogEntry (User-Defined.logEntry)<br />

The rule redirects a request sent from a client by an instant messaging user to an authentication<br />

server and displays a message to inform the user about the redirect.<br />

The action settings specify that the Show IM Authenticated template is used for the message.<br />

The rule also uses an event to set values for a log entry on the authentication request. It uses a<br />

second event to write this entry into a log file. A parameter of this event specifies the log entry.<br />

The settings of the event specify the log file and the way it is maintained.<br />

IM Proxy<br />

This nested rule set handles authentication of instant messaging users under the Authentication Server<br />

method.<br />

Nested library rule set — IM Proxy<br />

Criteria — Connection.Protocol.IsIM equals true AND<br />

IM.MessageCanSendBack is true<br />

Cycle — Requests (and IM), responses, embedded objects<br />

The rule set criteria specifies that the rule set applies when a user sends a chat message or a file on a<br />

connection under an instant messaging protocol and a message can already be sent back from the<br />

appliance to the user.<br />

The rule set contains the following rule:<br />

Redirect not authenticated users to the authentication server<br />

Authentication.Authenticate equals false –> Authenticate<br />

The rule uses the Authentication.Authenticate property to check whether a user who sends a chat<br />

message or file under an instant messaging protocol is authenticated. The settings that follow the<br />

property in the rule criteria specify the Authentication Server method for this authentication.<br />

If a user is not authenticated under this method, processing stops and a message is displayed,<br />

asking the user to authenticate. Processing continues when the next user request is received.<br />

The action settings specify that the IM Authentication template is used for displaying the<br />

authentication message to the user.<br />

<strong>McAfee</strong> <strong>Web</strong> <strong>Gateway</strong> <strong>7.1.5</strong> <strong>Product</strong> <strong>Guide</strong> 141

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