class DRb::DRbTCPSocket

def self.getservername

Returns the hostname of this server 
def self.getservername
  host = Socket::gethostname
  begin
    Socket::getaddrinfo(host, nil,
                              Socket::AF_UNSPEC,
                              Socket::SOCK_STREAM,
                              0,
                              Socket::AI_PASSIVE)[0][3]
  rescue
    'localhost'
  end
end