Usage:
/usr/bin/nfsdctl [-hdsV] [COMMAND] [ARGS]
  options:
    -h | --help          usage info
    -d | --debug         enable debugging
    -s | --syslog        log messages to syslog
    -V | --version       print version info
  commands:
    pool-mode            get/set host pool mode setting
    listener             get/set listener info
    version              get/set supported NFS versions
    threads              get/set nfsd thread settings
    nlm                  get current nlm settings
    status               get current RPC processing info
    autostart            start server with settings from /etc/nfs.conf