check process named with pidfile /var/run/bind/run/named.pid
   start program = "/etc/init.d/bind9 start"
   stop program = "/etc/init.d/bind9 stop"
   if failed host 127.0.0.1 port 53 type tcp then alert
   if failed host 127.0.0.1 port 53 type udp then alert
   if 5 restarts within 5 cycles then timeout