As a side note this is also my first installation from source (I always used Jonathan's RPM) and another oddity is that when doing
ps -ef | grep nsd
I was used to see several threads, while now I see only one nsd process. Is this normal?
Redhat has updated ps so that it does not expose linux's internal mapping of threads to processes starting with version 2.0.7-16 of the procps package.