anchor.diff:          # just monitor `cat'.
           script =
             ''
  -            export PATH=${pkgs.nettools}/bin:$PATH
               rm -f ${stateDir}/dummy
               mkfifo ${stateDir}/dummy
               cat ${stateDir}/dummy &
  
positive.code: 
          description = "Zabbix server daemon";
  
          startOn = if cfg.dbServer == "localhost" then "started postgresql" else "filesystem";
          stopOn = if cfg.dbServer == "localhost" then "stopping postgresql" else "starting shutdown";
  
          preStart =
            ''
  
negative.code: 
        PidFile = ${pidFile}
  
        ${optionalString (cfg.dbServer != "localhost") ''
          DBHost = ${cfg.dbServer}
        ''}
  
        DBName = zabbix
  
  