Now running as requested user 'nobody' (65534:65534)
Tue Dec 25 21:58:30 2007  **FATAL_ERROR** ....open of /var/lib/ntop/prefsCache.db failed: File open error
Tue Dec 25 21:58:30 2007  1. Is another instance of ntop running?
Tue Dec 25 21:58:30 2007  2. Make sure that the use you specified can write in the target directory