.TH squid_session 8 "19 March 2006" "Version 1.0"
.
.SH NAME
squid_session - Squid session tracking external acl group helper
.
.SH SYNOPSIS
squid_session [-t idle_timeout] [-b dbpath] [-a]
.
.SH DESCRIPTION
This helper maintains a concept of sessions by monitoring requests
and timing out sessions if no requests have been seen for the idle timeout
timer.
.P
Intended use is for displaying "terms of use" pages, ad popups etc.
.
.TP
.BI "-t " "idletimeout " "(default 3600)"
Specifies the session idle timeout timer.
.
.TP
.BI "-b " "dbpath"
Path to persistent database. If not specified the session details
will be kept in memory only and all sessions will reset each time
Squid restarts it's helpers (Squid restart or rotation of logs).
.
.TP
.B "-a"
Active mode. In this mode sessions are started by evaluating an
acl with the argument LOGIN, or terminated by the argument LOGOUT.
.P
Without this flag the helper automatically starts the session after
the first request.
.
.SH EXAMPLE
.P
Configuration example using the default automatic mode
.IP
external_acl_type session ttl=300 negative_ttl=0 children=1 concurrency=200 %LOGIN /usr/local/squid/libexec/squid_session
.IP
acl session external session
.IP
http_access deny !session
.IP
deny_info http://your.server/bannerpage?url=%s session
.P
Then set up http://your.server/bannerpage to display a session startup page and then redirect the user back to the requested URL given in the url query parameter.
.SH AUTHOR
This helper and documentation was written by 
.I Henrik Nordstrom <henrik@henriknordstrom.net>
.
.SH QUESTIONS
Any questions on usage can be sent to 
.IR "Squid Users <squid-users@squid-cache.org>" .
.
.SH REPORTING BUGS
Report bugs or bug-fixes to
.I Squid Bugs <squid-bugs@squid-cache.org>
or ideas for new improvements to 
.I Squid Developers <squid-dev@squid-cache.org>
.
.SH "SEE ALSO"
.BR squid ( 8 )