Linux server"connection refused by host"

[inderraw]

Dear Team,

i have installed Nagios patch in Linux server 4.4 , but it is showing Nagios console" connection refused by host"

1-I have installed linux nrpe agent in to server.
2-i also opend port 12489,5666,5667.

Please help.

Regards
Inder Singh Rawat

[inderraw]

I also followed attached documment.
Please suggest as it is urgent, why information not fetching from Linux server.

Regards
Inder Singh Rawat

[scottwilkerson]

To be clear what distro, version and architecture are you running?

Which of the 2 files in the PDF did you install

[inderraw]

Dear Team,

I have linux 4.4 version and i installed second option (RHEL 4 & CentOS 4 (el4);

Regards
Inder Singh Rawat

[inderraw]

My linux Machine is on Amazon cloud.

Regards
Inder Singh Rawat

[scottwilkerson]

Is it RHEL or CentOS?

[inderraw]

This is RHEL.

Regards
Inder Singh Rawat.

[lmiltchev]

Can you telnet to port 5666 on the client (remote) machine from your nagios server? What is the output of the following two commands, ran on the nagios server?

Code: Select all

telnet <client_IP> 5666
/usr/local/nagios/libexec/check_nrpe -H <client_IP>

You can also look for clues in the system log on the remote server:

Code: Select all

cat /var/log/messages | grep nrpe

[inderraw]

Dear Team,

I tried to monitor linux server, but not able to instal patch getting error.

Regards
Inder Singh Rawat

[sreinhardt]

Is this actually RHEL, or amazons ami\ec2 altered version? Let's try checking a few things.

Code: Select all

rpm -qa | grep release
cat /etc/*elease