user15:~$ ssfd -h
Secure Socket Funneling 3.0.0
Usage:
  ./ssfd [OPTION...]

  -h, --help              Show help message
  -v, --verbosity arg     Verbosity: critical|error|warning|info|debug|trace
                          (default: info)
  -q, --quiet             Do not print logs
  -c, --config arg        Specify configuration file. If not set,
                          'config.json' is loaded from the current working directory
  -p, --port arg          Local port (default: 8011)
  -R, --relay-only        The server will only relay connections
  -l, --bind-address arg  Server bind address
  -g, --gateway-ports     Enable gateway ports
  -S, --status            Display microservices status

Using Boost 1.65.1 and OpenSSL 1.0.2m