Problem configuring NCPA via NRDP in Nagios core

[tejassawai]

I want to use NCPA for monitoring remote machines on Nagios.
I want to use NRDP Plugin for the same, I have:
Nagios Core : 4.0.2 Running on Server A
NRDP 1.2 : Running on Server A.
NCPA : 1.1 Running on Client B.

My Nagios core is working fine and monitoring localhost i.e. Server A.

My NRDP configuration file

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/usr/local/nrdp/server/config.inc.php

is looks like:

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<?php
// NRDP Config File
// Copyright (c) 2010 Nagios Enterprises, LLC.
// License: Nagios Open Software License <http://www.nagios.com/legal/licenses>
//  
// $Id: config.inc.php 12 2010-06-19 04:19:35Z egalstad $


// an array of one or more tokens that are valid for this NRDP install
// a client request must contain a valid token in order for the NRDP to response or honor the request
// NOTE: tokens are just alphanumeric strings - make them hard to guess!
$cfg['authorized_tokens'] = array(
	"nrdp",  // <-- not a good token
	//"90dfs7jwn3",   // <-- a better token (don't use this exact one, make your own)
	);
	
// do we require that HTTPS be used to access NRDP?
// set this value to 'false' to disable HTTPS requirement
$cfg["require_https"]=false;

// do we require that basic authentication be used to access NRDP?
// set this value to 'false' to disable basic auth requirement 
$cfg["require_basic_auth"]=false;

// what basic authentication users are allowed to access NRDP?
// comment this variable out to allow all authenticated users access to the NRDP
$cfg["valid_basic_auth_users"]=array(
	"nrdpuser"
	);
	
// the name of the system group that has write permissions to the external command file
// this group is also used to set file permissions when writing bulk commands or passive check results
// NOTE: both the Apache and Nagios users must be a member of this group
$cfg["nagios_command_group"]="nagcmd";

// full path to Nagios external command file
$cfg["command_file"]="/usr/local/nagios/var/rw/nagios.cmd";

// full path to check results spool directory
$cfg["check_results_dir"]="/usr/local/nagios/var/spool/checkresults";

// full path to directory where temp scratch files can be written
// NOTE: the Apache user need to be able create files here, and the Nagios user needs to read/delete those same files, so the /tmp system directory won't work (it has a sticky bit on it)
$cfg["tmp_dir"]="/usr/local/nagios/var/tmp";

	
///////// DONT MODIFY ANYTHING BELOW THIS LINE /////////

$cfg['product_name']='nrdp';
$cfg['product_version']='1.0'


?>

And On Client B : My NCPA configuration

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/usr/local/ncpa/etc/ncpa.cfg

is looks like :

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[listener]
uid = root 
certificate = adhoc
loglevel = info
ip = 0.0.0.0
gid = root
logfile = var/ncpa_listener.log
port = 5693
pidfile = var/ncpa_listener.pid

[passive]
uid = nagios
handlers = nrdp
loglevel = info
gid = nagcmd
sleep = 300
logfile = var/ncpa_passive.log
pidfile = var/ncpa_passive.pid

[nrdp]
token = nrdp
hostname = Dhruv
parent = http://192.168.3.222/nrdp/

[nrds]
url = None
CONFIG_VERSION = None
token = None
CONFIG_NAME = Freddy
CONFIG_OS = None

[api]
community_string = mytoken

[plugin directives]
plugin_path = plugins/
.sh = /bin/sh $plugin_name $plugin_args
.ps1 = powershell -ExecutionPolicy Unrestricted $plugin_name $plugin_args
.vbs = cscript $plugin_name $plugin_args //NoLogo

[passive checks]
%HOSTNAME%|cpu usage = /cpu/percent --warning 20 --critical 30
%HOSTNAME%|swap usage = /memory/swap/percent --warning 40 --critical 80
%HOSTNAME%|memory usage = /memory/virtual/percent --warning 60 --critical 80
~

Now When I try to run command from server A to monitor client B. I get following error.

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[root@target nrdp]# /usr/local/nagios/libexec/check_ncpa.py -vt 'mytoken' -H 192.168.3.100 -M cpu/percent -w 20 -c 40
Connecting to: https://192.168.3.100:5693/api/cpu/percent?token=mytoken&warning=20&critical=40&check=1
An error occurred:('http protocol error', 0, 'got a bad status line', None)

And When I connect to

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https://192.168.3.100:5693/api/cpu/percent?token=mytoken&warning=20&critical=40&check=1

via browser, it shows

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{
  "value": {
    "returncode": 0, 
    "stdout": "OK: Percent was 0.0%,0.0%,0.0%,0.0%,0.0%,0.0%,0.0%,0.0%|'percent_0'=0.0%;20;40 'percent_1'=0.0%;20;40 'percent_2'=0.0%;20;40 'percent_3'=0.0%;20;40 'percent_4'=0.0%;20;40 'percent_5'=0.0%;20;40 'percent_6'=0.0%;20;40 'percent_7'=0.0%;20;40"
  }
}

Am I missing anything to configure?
Any suggestion?

[sreinhardt]

I don't see anything glaringly wrong with your check or settings. I would however suggest updating both the agent and check_ncpa to 1.3, as I know there are many bug fixes already.