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HISTORY.CGI(1)		    General Commands Manual		HISTORY.CGI(1)

       history.cgi - CGI program to display service history


       history.cgi  is invoked as a CGI	script via the CGI wrapper.
       It is passed a QUERY_STRING environment variable	with the following pa-

	  HISTFILE (a Xymon service history file)
	  ENTRIES (the number of entries to show)

       The  following non-standard parameters are handled by the Xymon version
       of history.cgi:

	  IP (IP address of host - for display purposes	only)
	  PIXELS (width	of colorbar when in pixel-mode)
	  ENDTIME (when	the colorbar begins, a time_t value)
	  BARSUMS (which colorbars and summaries to show)

       history.cgi analyses the	service	history	file for changes that have oc-
       curred  within the past 24 hours, and build a colorbar showing the sta-
       tus of the service over this period of time.  A statistics  summary  is
       also  produced, listing the amount of time for each status (green, yel-
       low, red, purple, blue, clear).

       Finally,	a summary of the last N	events is given, with links to the ac-
       tual event logs.

       Unlike  the standard script, history.cgi provides a colorbar
       and statistics summaries	also covering the past 1 week, 4 weeks	and  1
       year  of	data. Via links	it is possible to browse the entire history of
       the service at the requested interval.

       Note that since the resolution of the display is	limited, events	may be
       too  short  to  show  up	on a colorbar; also, the exact placement of an
       event may not fully match up with the time-markers.

       The graphs should correctly handle the display of months	with different
       number  of  days, as well as the	display	of periods that	involve	begin-
       ning and	end of Daylight	Savings	Time, if this occurs in	your timezone.

       All dates and times shown are in	local time for the timezone defined on
       the Xymon server.

	      Defines the host and service whose history is presented.

	      The  number  of log-entries to show in the event log table.  De-
	      fault is 50; to view all log entries set this to "ALL".

       IP     The IP-address of	the host. This is only used for	the  title  of
	      the document.

       PIXELS The  width of the	colorbar graph in pixels. If this is set to 0,
	      a	percentage-based graph will be shown, similar to the one  pro-
	      vided by the standard script.	Pixel-based graphs can
	      have a higher resolution,	but do	not  resize  automatically  to
	      suit  the	 size  of a browser window. The	default	value for this
	      parameter	is defined at compile-time; 960	is a  good  value  for
	      displays with a 1024x768 resolution.

	      Defines  which colorbars and summaries to	show. This is a	number
	      made up from a bitmask. The 1-day	graph uses the value "1";  the
	      1-week graph uses	the value "2"; the 4-week graph	uses the value
	      "4" and the 1-year graph the value "8".  To show multiple	graph,
	      add  the	values	-  e.g.	 "6"  will show	the 1-week and 4-weeks
	      graphs, whereas "15" will	show all the graphs.  The  default  is
	      defined at compile-time.

	      The history display by default ends with the current time.  Set-
	      ting the ENDTIME parameter causes	it to end at the  time	speci-
	      fied - this is given as a	Unix "time_t" value, i.e.  as the num-
	      ber of seconds elapsed since Jan 1 1970 00:00 UTC.

	      Load the environment from	FILENAME before	executing the CGI.

       hosts.cfg(5), xymonserver.cfg(5)

Xymon			  Version 4.3.30:  4 Sep 2019		HISTORY.CGI(1)


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