Apache Reference: mod_usertrack, CookieExpires
Expiry Time of Tracking Cookies
Syntax: CookieExpires A
Example: CookieExpires "2 days"
Since: Apache 1.2
This directive sets an expiry time on the HTTP cookie
generated by mod_usertrack. The expiry period can be given
either as a number of seconds or in a format such as ``2 weeks 3
days 7 hours''. Valid denominations are ``years'', ``months'',
``weeks'', ``hours'', ``minutes'', and ``seconds''. If
expiry-time appears in any format other than one number indicating the
number of seconds, enclose it in double quotes. If this
directive is not used, HTTP cookies persist only for the duration of
the current browser session.