During both Year 1 and
Year 2 Illinois, Maryland, and Virginia spent a minimum amount of time
on this cost center, under 10 hours. American had the highest number of
hours in Year 1, 104. Michigan had the most hours worked in Year 2, 207.
Columbia had no hours worked for Year 1, but 167 in Y2. Cornell and Virginia
had no hours worked for Year 2.
implemented security restriction by IP address so only those users from
within the university's domain or the domain of another participating
university could access the MESL data and images. They used the features
which were already part of the server administration software, WebSTAR,
to check IP addresses as individuals attempted to gain access to the
implemented an IP-based security system. Similar to American's system,
the capability was built into their server software, Apache. In their
technical report they indicated that they were experimenting with a
non-IP based security software so this would account for the increase
in hours in Year 2.
implemented security restrictions by IP addresses.
implemented IP address checking through their web server. In Year 2
they also had a login and password system for users outside of the Illinois
was controlled via IP address checking, a standard feature of their
Web server software.
Until February 1997, access was limited by IP address or domain name,
when they upgraded to a more sophisticated, commercial system.
Address checking was implemented and since it was a feature of the server
software they were already using, it required minimal time to implement.
to Chapter 3
Cost of Digital Image Distribution:
The Social and Economic Implications of
the Production, Distribution, and Usage of Image Data
Howard Besser & Robert Yamashita