YARP  2.3.70
Yet Another Robot Platform
yarpserver: the YARP name server
  yarpserver [OPTIONS]

  --config filename.conf   Load options from a file.
  --portdb ports.db        Store port information in named database.
                           Must not be on an NFS file system.
                           Set to :memory: to store in memory (faster).
  --subdb subs.db          Store subscription information in named database.
                           Must not be on an NFS file system.
                           Set to :memory: to store in memory (faster).
  --ip IP.AD.DR.ESS        Set IP address of server.
  --socket NNNNN           Set port number of server.
  --web dir                Serve web resources from given directory.
  --no-web-cache           Reload pages from file for each request.
  --ros                    Delegate pub/sub to ROS name server.

This starts a name server running on the current machine, optionally specifying the socket-port to listen to (default whatever was used in the previous invocation, as recorded in a configuration file, or 10000 if this is the first time to run). Also, the IP by which the name server should be identified can optionally be specified (default is a fairly random choice of the IPs associated with the current machine).

The address of the name server can be determined using yarp where. The address is cached in a configuration file - see yarp conf.

If possible, a fallback multi-cast server will be started with IP 224.2.1.1 and port number 10001. The purpose of this server is to allow yarp processes to find the yarp name server in the absence of correct configuration.