server:
    use-syslog: yes
    #logfile: "/tmp/unbound.log"
    # level 0 means no verbosity, only errors. Level 1 gives operational
    # information. Level 2 gives detailed operational information. Level 3
    # gives query level information, output per query.  Level  4  gives
    # algorithm  level  information.
    verbosity: 2
    # Print statistics to the log every 15 minutes
    statistics-interval: 900