vocal.conf is a file for controlling the behavior of VOCALcomponents. Lines which begin with #are comments. Each line of the vocal.conf file consists of two parts. First, is the parameter name, which is typically in all caps. after that, a single space, which is followed by the value of that entry.
The following options are available in the vocal.conffile.
The user for vocald to run programs as. this should be set to something like nobody.
The default pserver, in the form IPADDR:PORT
The backup pserver, in the form IPADDR:PORT
The multicast address for redundant pservers, in the form IPADDR:PORT
Require clients to connect via TLS.