We evaluated the IBM product, NetSP, and unfortunately found that it did not
fit our needs. It had several problems, the one glaring drawback was that
it included the full operating system of AIX, and did not seem very secure.
The interface was very nice, all of its utilities ran under X-Windows. The
way the user set up the ACL lists was pretty confusing. You set up a
user-id, and then defined what services were available to said user. The
set-up was not straight-forward, but then again, we did not spend a whole
hell of alot of time investigating it.