Sun Java System Application Server Platform Edition 8.1 2005Q2 Update 2 Administration Reference

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### Properties

The following table describes properties for the `virtual-server` element.

Table 1–131 `virtual-server` Properties

Property | Default | Description
--- | --- | ---
`sso-enabled` | `true` | If `true`, single sign-on is enabled for web applications on this virtual server that are configured for the same realm. If `false`, single sign-on is disabled for this virtual server, and users must authenticate separately to every application on the virtual server.
`sso-max-inactive-seconds` | `300` | Specifies the time after which a user’s single sign-on record becomes eligible for purging if no client activity is received. Since single sign-on applies across several applications on the same virtual server, access to any of the applications keeps the single sign-on record active. Higher values provide longer single sign-on persistence for the users at the expense of more memory use on the server.
`sso-reap-interval-seconds` | `60` | Specifies the interval between purges of expired single sign-on records.
`setCacheControl` | none | Specifies a comma-separated list of `Cache-Control` response directives. For a list of valid directives, see section 14.9 of the document at http://www.ietf.org/rfc/rfc2616.txt.
`redirect_`n | none | Specifies that a request for an old URL is treated as a request for a new URL. These properties are inherited by all web applications deployed on the virtual server. The value of each `redirect_`n property has two components, which may be specified in any order: The first component, `from`, specifies the prefix of the requested URI to match. The second component, `url-prefix`, specifies the new URL prefix to return to the client. The `from` prefix is simply replaced by this URL prefix. For example:
    <property name="redirect_1"
    value="from=/dummy url-prefix=http://etude"/>

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