Answer
Hi All,,,
Sorry for the late comment...
I was working on this issue and I am excited to comment that finally the issue has been resolved.
For those who wants to monitor servers behind a squid reverse proxy can follow the below and make things done.
Proxy server Configuration:
vim /etc/nagios/nrpe.cfg
For proxy Server Monitoring
command[check_disk]=/usr/lib64/nagios/plugins/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
command[check_cpu]=/usr/lib64/nagios/plugins/check_cpu -w $ARG1$ -c $ARG2$
command[check_mem]=/usr/lib64/nagios/plugins/check_mem -w $ARG1$ -c $ARG2$ -W $ARG3$ -C $ARG4$
command[check_procs]=/usr/lib64/nagios/plugins/check_procs -C $ARG1$ -c $ARG2$
Monitoring via nrpe fro servers behind proxy
command[check_proxy_disk]=/usr/lib64/nagios/plugins/check_nrpe -t 60 -H $ARG1$ -c $ARG2$ -a $ARG3$ $ARG4$ $ARG5$
command[check_proxy_mem]=/usr/lib64/nagios/plugins/check_nrpe -t 60 -H $ARG1$ -c $ARG2$ -a $ARG3$ $ARG4$ $ARG5$ $ARG6$
command[check_proxy_cpu]=/usr/lib64/nagios/plugins/check_nrpe -t 60 -H $ARG1$ -c $ARG2$ -a $ARG3$ $ARG4$
command[check_proxy_procs]=/usr/lib64/nagios/plugins/check_nrpe -t 60 -H $ARG1$ -c $ARG2$ -a $ARG3$
I was working on this problem, and I'm happy to report that it has now been fixed.
Anyone who wishes to monitor servers hidden behind a Squid reverse proxy can do so by following the steps listed below. monkey mart
Monitoring Linux Servers behind squid proxy via Nagioscore
Hi All,
This is my first post here, please help me.
I want to monitor a few redhat servers which are behind squid proxy server. I have done the below configuration:
RedHat Node behind proxy server configuration:-
I have installed nrpe and also copied check_disk, check_cpu and check_mem plugins under /usr/lib64/nagios/plugins.
I also added the below lines in /etc/nagios/nrpe.cfg file.
allowed_hosts=127.0.0.1,Squid_Proxy_server_IP
command[check_disk]=/usr/lib64/nagios/plugins/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
command[check_cpu]=/usr/lib64/nagios/plugins/check_cpu -w $ARG1$ -c $ARG2$
command[check_mem]=/usr/lib64/nagios/plugins/check_mem -w $ARG1$ -c $ARG2$ -W $ARG3$ -C $ARG4$
Squid Proxy Server Configuration:-
I have also installed nrpe in squid proxy server and copied check_disk, check_cpu, check_mem, check_nrpe and check_ping plugins under /usr/lib64/nagios/plugins. I also added the below lines in /etc/nagios/nrpe.cfg file.
allowed_hosts=127.0.0.1,Nagios_server_IP
command[check_disk]=/usr/lib64/nagios/plugins/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
command[check_cpu]=/usr/lib64/nagios/plugins/check_cpu -w $ARG1$ -c $ARG2$
command[check_mem]=/usr/lib64/nagios/plugins/check_mem -w $ARG1$ -c $ARG2$ -W $ARG3$ -C $ARG4$
command[check_proxy]=/usr/lib64/nagios/plugins/check_nrpe -t 60 -H $ARG1$ -c $ARG2$ -a $ARG3$ $ARG4$
command[check_ping]=/usr/lib64/nagios/plugins/check_ping -H $ARG1$ -w 3000.0,80% -c 5000.0,100% -p 5
If I run the below command from squid proxy server to RedHat server, I can get a correct output.
/usr/local/nagios/libexec/check_nrpe -H RedHat_IP -c check_disk -a 20% 10% /app
Also If I run the below command from nagios server to squid proxy server, I can get a correct output.
/usr/local/nagios/libexec/check_nrpe -H Proxy_server_IP -c check_disk -a 20% 10% /app
But if I run the below command to check the RedHat server status directly from nagios server via Proxy server I get "Error: Unable to read the output".
./check_nrpe -H Proxy_node_IP -c check_proxy -a RedHat_IP check_disk "20% 10% /app"
Please help as it has become quite critical for our environment.