NFS
What makes Collectl, a performance monitor for benchmarking, monitoring a system's general heath different from other monitoring tools is that unlike most tools that focus on a small set of statistics and runs either in an iterative manner or a daemon it tries to do it all.
Let us assume that you have already setup your NFS and NIS server.
Several years ago I noticed a big issue with NIS security at Sun, which I promptly reported hoping for a patch.
I faced an extremely weird problem of ghost DNS lookups on machines configured as NFS clients.