check process squid with pidfile /var/run/squid.pid
   start program = "/sbin/service squid start" 
   stop program = "/sbin/service squid stop" 
   if cpu > 60% for 3 cycles then restart
   if totalmem > 200.0 MB for 3 cycles then restart 
   if failed host localhost port 3130 type tcp then restart
   if 3  restarts within 5 cycles then timeout