Cisco Cisco Web Security Appliance S170 Guida Utente

AsyncOS always includes all parameters in each redirected URL. If no value exists for a particular 
parameter, AsyncOS passes a hyphen (-).

Navigate to the Security Services > End-User Notification page, and click Edit Settings.

From the Notification Type field, choose Redirect to Custom URL.

In the Notification Page URL field, enter the URL to which you want to redirect blocked websites.

You can choose whether or not to preview the URL you enter by clicking the Preview Custom 
URL link.

Submit and commit your changes.

You can configure the Web Security appliance to inform users that it is filtering and monitoring their 
web activity. The appliance does this by displaying an end-user acknowledgement page when a user first 
accesses a browser after a certain period of time. When the end-user acknowledgement page appears, 
users must click a link to access the original site requested or any other website.

DVS_ThreatName

The name of the malware found by the DVS engine.

Reauth_URL

A URL that users can click to authenticate again if the user is blocked from a 
website due to a restrictive URL filtering policy. Use this parameter when the 
“Enable Re-Authentication Prompt If End User Blocked by URL Category or 
User Session Restriction” global authentication setting is enabled and the user is 
blocked from a website due to a blocked URL category.

To use this parameter, make sure the CGI script performs the following steps:

1. Get the value of 

Reauth_Url

 parameter.

2. URL-decode the value.

3. Base64 decode the value and get the actual re-authentication URL.

4. Include the decoded URL on the end-user notification page in some way, 
either as a link or button, along with instructions for users informing them they 
can click the link and enter new authentication credentials that allow greater 
access.

For more information, see