We still use NIS for our use authentication, and for distributing sun-style automount maps for NFS-mounted filesystems. Without getting into debates, we primarily still use NIS because we've dodged the bullet with respect to PC integration. We don't have to support single-sign-on for the PCs we have, and we don't have to export most of our filesystems to them. So, NIS still servers our needs.
NIS can also be perfectly secure, when used properly with firewalls, and securenets. It also helps to add in the Sun's c2 security on the NIS maps, which is a process we're working on now.
Mac laptops have been the preferred laptops amoung our users for some time now. All of the scientist's software can be ported and run on the macs. They generally have the horsepower the scientists need. The operating system is well-supported and does not have the sometimes complex support and configuration issues of Linux. It's also easier to use - while all of our scientists use Unix, many of them would prefer to learn as little as possible about the computer, and spend more time on astrophysics.
These laptops are typically self-supported by the users, and are not allowed access to the secure, NIS portion of our network. However, as more users become familiar with Macs, they are interested in using them as their desktop machines. Macs are as powerful, and arguably more powerful than Linux-based choices. The OS matches what they are used to on their laptops, and all the software has been ported.
We also have one group that has chosen Macs as their primary platform for software development, in support of the Hinode solar satelite.
In short, we are seeing a growing need to treat OS X systems as if they are traditional Unix-login desktops.
Throughout all of these solutions, we found the Finder to be very buggy with respect to automounted filesystems. You couldn't reliably click through a mount point to get a mount (in some of the above methods, this was simply impossible). And when an automounted directory was unmounted, this really left Finder in a very confused state.
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