YPBIND
The ypbind utility is the process that maintains NIS binding information. At startup, it searches for an NIS server responsible for serving the system's default domain (as set by the domainname(1) command) using net-work broadcasts
Available to all SRX running 12.3X48+
Available to all MX running 20.2R1+
Available to all vSRX running 20.3R1+