I am newbie to linux and I am trying to monitor a server through another. I am following the guide from here

http://www.unixmen.com/install-and-c...-6-4-rhel-6-4/

but after doing all the steps mentioned when I checked on my web interface of nagios server, client status is down and it is giving message in status information as

<wrta> was not set
check_ping: Could not parse arguments
Usage:
check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>%
[-p packets] [-t timeout] [-4

I don't know what I have left. Please guide me and help me to fix the problem

Thanks

Kashid,
Unfortunately, I am not able to open link provided by you to cross verify.
Again, the query you asked is very vegue, you need to be a little bit specific.
Couple of quick things:
1. Are you using only remote montioring? Or you have client installed?
2. If client is installed, whether communication between server and client is happening. netstat would be good option to start.
3. Communication between Nagios server and client? Ping? traceroute?
4. The message you are seeing is in Nagios monitoring console or some log files?
5. Can you try to run check_ping command from your commnad prompt and see if it is running fine?

Try this one also:
http://assets.nagios.com/downloads/n...rom_Source.pdf

Hi,

1)-I am remotely monitoring. Actually I have two servers on cloud. On one server I have installed nagios and on another nrpe to monitor 2nd one's services.

2)-I have tried to listen the port on 2nd server it is listening (nrpe port 5666)
3)-Both are not on LAN so I don't understand how to ping, if you mean that by pinging live ip's then yes both machines can ping each other
4)-I am seeing this message in nagios web interface
5)-I have tried check_ping command on server side and got the message

CHECK_NRPE: Error - Could not complete SSL handshake.

The link I followed is working fine on my side. I am posting it again. Kindly take a look again

http://www.unixmen.com/install-and-c...-6-4-rhel-6-4/

I am newbie therefore I don't know much about linux systems and I don't know about many commands. So consider me basic level student.

Thanks,

You are one step ahead now. So, go through below links as well search for the error that you are getting.
http://www.linuxquestions.org/questi...dshake-765515/
http://support.nagios.com/knowledgeb...=35&faq_id=191

Basic troubleshooting if already not done:
Server A: Nagios Master
Server B: Nagion Client

From A, ping B.
From B, ping A.
From A, telnet B 5666

Did you verify Nagios configuration file using dry run?

Hi,

I am not using xinetd service, because there is no information about xinetd in the tutorial I have followed. I am following tutorial from

http://www.unixmen.com/install-and-c...-6-4-rhel-6-4/

After doing what you asked to

1) Pinging from A to B is ok
2) Pinging from B to A is ok
3) From A, telnet B 5666

Command and Output is

[root@AsteriskCentOS plugins]# telnet 80.240.133.38 5666
Trying 80.240.133.38...
Connected to 80.240.133.38.
Escape character is '^]'.

please guide me further
Sorry for late reply

Thanks,

For further information

I have installed a plugin to check bandwidth usage for client. I have followed tutorial from

http://loginroot.com/bandwidth-monit...s-bw_watch-sh/

But in output on nagios web interface I am having no output but just the version of nrpe.

output at web interface is

Bandwidth
OK 06-25-2014 07:19:08 0d 0h 27m 47s 1/3 NRPE v2.15

Thanks,