4 This is a collection of programs (scripts) that implement an automated
5 network access control policy. The general idea is to declare the open
6 and close times for each weekday as well as a time limit of
7 accumulated usage during the open time.
9 For example, that the network should be open between 3pm and 8pm and
10 allow for 2 hours of usage within those times.
12 The Hourglass system includes four components:
14 1. User interface for policy setting
15 2. Continuous determination of network traffic (usage or not)
16 3. Continuous determination of control action
25 Hourglass User Interface
26 ------------------------
28 This software is an HTTP service aimed at editing the Hourglass
29 control policy, held in the +control.dat+ file, as well as the control
30 override setting, in file +control-extra.dat+, whilst also showing
31 current usage measure from file +usage.dat+.
33 Hourglass Network Traffic Capture
34 ---------------------------------
39 Hourglass Control Actuator
40 --------------------------