Administration is too important to be left to administrators.
Some insight is necessary for end users as well, even if only to investigate and narrow down problems, and then make useful requests to administrators.
One may consider two approaches to administration:
The latter is often more challenging, as under error conditions the system does not exhibit the same level of coherence as under normal ones. We'll mention a few such cases. What is important is that there is always a balance of the two.
We have actually already dealt with quite ...