NRPE: Unable to read output

[martinkuriax]

We are trying to run the command below but getting the error NRPE: Unable to read output

Kindly assist on this thanks again

# /usr/local/nagios/libexec/check_nrpe -H 1x.9x.x.x -t 30 -c check_init_service -a 'httpd'
NRPE: Unable to read output

[cdienger]

What OS is the nrpe agent installed on? What is the output if you run /usr/local/nagios/libexec/check_init_service -a 'httpd' on that machine?

[martinkuriax]

Below is the output of the command:

The nrpe agent is installed on centos 6.5 OS which is running the Nagios XI

# /usr/local/nagios/libexec/check_init_service -a 'httpd'
ERROR: No service name specified on command line

[cdienger]

Sorry, the -a isn't needed if you're running it on the client machine. Try:

/usr/local/nagios/libexec/check_init_service 'httpd'