 check process NXDNGateway
   matching "NXDNGateway"
   group dvswitch
   group NXDNGateway
   start program = "/usr/bin/systemctl start nxdngateway"
   stop  program = "/usr/bin/systemctl stop nxdngateway"
   restart program = "/usr/bin/systemctl restart nxdngateway"
   if does not exist then alert

 check file NXDN_Host_file with path /var/lib/mmdvm/NXDNHosts.txt
   group dvswitch
   group NXDNGateway
   if does not exist then exec "/usr/local/sbin/DVSM_Update.sh"
   if timestamp > 25 hours then exec "/usr/local/sbin/DVSM_Update.sh"
