=== Overview ===

//Npstats//' main purpose is to monitor the noaaport receivers and servers.
//Npstats// can monitor devices that are local to a site as well as devices
in remote sites. In the latter role, //Npstats// acts as a central monitoring
server to which clients can connect to compare the status of the noaaport
signal in widely separated geographical areas.

//Npstats// consists of a daemon //npstatsd//, which is responsible for
running a data collector //manager// and a //qrunner//. The //manager//,
at certain periods, execute a set of device //pollers// that retrieve the
status data from the local devices that are being monitored. In addition,
data from remote devices can be received by ftp, http or sftp. The data is
accumulated in a spool directory until the //npstatsd// daemon executes the
//qrunner//, and then the data is archived locally or remotely,
or both, depending on the configuration. The data can be archived in
plain text files and/or in a database such as Postgres or Mysql.

In short, //Npstats// can be configured to be used only as a local device
monitor, as a centralized server, or both. //Npstats// comes with its
own (//tclhttpd//-based) web server for monitoring //Npstats// itself.