loadd - load measuring agent 
markus@wernig.net

server that measures system load for specified services and returns them 
on request to external programs.

########################################################################

Copyright 2000 Markus Wernig

    loadd is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    loadd is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with loadd; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

########################################################################



loadd checks for open sockets for services defined in /etc/services AND /etc/loadd.conf.
(see there)
for proper operation make sure that netstat, grep, ps and wc are executable by the user 
running loadd.

loadd runs on port 1600 by default, but can be configured to use any other free port.

there are commandline options to loadd which have the same effect as the options
in /etc/loadd.conf, but a different syntax. commandline options override /etc/loadd.conf.

-h [host]:	bind to specific host/address - default is not to bind
-p [port]:	bind to port [port] - default is 1600
-s [service]:	service to measure load for - no default
-l [limit]:	maximum allowed number of concurrent connections for [service]
-a [application]: application that must be running for [service] - otherwise return
		maximum load, so that no connections are made
-f [file]:	configuration file to use. default is /etc/loadd.conf
-q:		quiet, no version output
-D:		write debug information to syslog. 
		syslog must be configured to log *.info and *.debug
-DDD:		heavy debugging. this will fill your syslog file very fast, so only
		use it if you have the source code at hand and can analyze it.
-v:		display version and exit

NOTE:
	the -s, -l, -a switches will limit load measuring to the service specified
	by -s [service]. it is more reliable to enter your definitions in /etc/loadd.conf.
	also, this will allow you to measure load for more than one service.

	mandatory information (provided on command line or in file):
		service
		limit
to install this:

# make

# cp loadd /usr/local/bin
# cp loadd.conf /etc

IMPORTANT:
edit /etc/loadd.conf according to system 
hints can be found there

to start standalone:

# /usr/local/bin/loadd -S


to reload configuration:

kill -HUP <loadd-PID>




to start from inetd:

enter this line into /etc/inetd.conf 

loadd   dgram   udp     wait    nobody  /usr/local/bin/loadd        loadd -q [-options]

and this into /etc/services

loadd           1600/udp

restart inetd