Install Nagios on CentOS with DELL iDRAC script

My Nagios version is 3.5.1 and available to download from here.

http://sourceforge.net/projects/nagios/files/nagios-3.x/nagios-3.5.1/

check_iDRAC script could be downloaded from here

https://exchange.nagios.org/directory/Plugins/Network-and-Systems-Management/Check_iDRAC-for-DELL-iDRAC/details

MIB file could be downloaded from here.

http://dezoils.com/wp-content/uploads/2014/11/iDRAC-MIB.zip

-------------------------------------- How-To ----------------------------------

There are 2 systems in this instruction, 1 for CentOS (Host) and 1 for iDRAC device (DUT).

##########  DUT iDRAC port setting

                - connect to idrac web interface (log in of course)

                - in left side, go into the Overview / iDRAC settings / Network

                - in right side (from top panel), choose Services / SNMP Agent

                - make sure "Enabled" is checked

                - make sure "SNMP Protocol" is checked on option "All (SNMP v1/v2/v3)

##########  CentOS (Host)

- Install CentOS 7

                #yum search net-snmp (make sure you can see the package list, it's normal if there is a downloading process)

                #yum install net-snmp net-snmp-utils git -y

                #git clone https://github.com/dangmocrang/check_idrac

                #cd check_idrac

                #mv idrac_2.0b9 idrac_2.0b9.py

                #python idrac_2.0b9.py -h  (please check if it can print out the help page, if yes, the script works).

                copy IDRAC-MIB.mib file as attached to Desktop

                #pwd (confirm the current directly is "/root/check_idrac", if not, please do command "#cd /root/check_idrac")

                #mv idrac_2.0b9 idrac_2.0b9.py

                #python ./idrac_2.0b9.py -H $IP_Address -c public -m /home/dell/Desktop/IDRAC-MIB.mib –n –w mem

                it's very important, you have to get response like

----------------

Memory 1 (DIMM Socket A1) 2.00 GB/1600 MHz: ENABLED/OK [DDR3, Samsung, S/N: 234A70AF]

----------------

########## Nagios Installation

**copy attathed nagios-3.5.1.tar.gz and nagios-plugins-1.4.11.tar.gz to Desktop

su -

useradd nagios

groupadd nagcmd

usermod -a -G nagcmd nagios

yum install   httpd php  gd gd-devel gcc glibc glibc-common openssl perl perl-devel make -y

cd /home/dell/Desktop

tar -xvzf nagios

cd nagios

./configure --with-command-group=nagcmd

make all

make install

make install-init

make install-config

make install-commandmode

make install-webconf

cp -rvf contrib/eventhandlers/ /usr/local/nagios/libexec/

chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin   (set the password for "nagiosadmin" user)

systemctl start httpd.service

systemctl start nagios.service

firewall-cmd --zone=public --add-port=80/tcp --permanent

firewall-cmd --reload

cp /home/dell/Desktop/IDRAC-MIB.mib /usr/share/snmp/mibs/

cp /root/check_idrac/idrac_2.0b9.py /usr/local/nagios/libexec/

chown nagios.nagios /usr/local/nagios/libexec/idrac_2.0b9.py

echo "cfg_file=/usr/local/nagios/etc/objects/idrac.cfg" >> /usr/local/nagios/etc/nagios.cfg

touch /usr/local/nagios/etc/objects/idrac.cfg

gedit /usr/local/nagios/etc/objects/idrac.cfg

                - copy & past all contents list below (#### idrac.cfg file ###) into the file

                - then you need to modify $idrac_ip_address to real DUT (idrac) IP Address (there are 2 items)

                - then save it

service nagios restart

*** now you should be able to use Chrome to browse "http://CentOS_IP_Address/nagios/" and log in as user:nagiosadmin and password you just set.

$$$$$$ for multi-DUT (idrac) $$$$$$$$$$$

cd /usr/local/nagios/etc/objects

cp idrac.cfg idrac2.cfg

cp idrac.cfg idrac3.cfg

echo "cfg_file=/usr/local/nagios/etc/objects/idrac2.cfg" >> /usr/local/nagios/etc/nagios.cfg

echo "cfg_file=/usr/local/nagios/etc/objects/idrac3.cfg" >> /usr/local/nagios/etc/nagios.cfg

and you need to modify "/usr/local/nagios/etc/objects/idrac2.cfg,idrac3.cfg...etc" for the following items.

- host_name

- $idrac_ip_address

- command_name

- $idrac_ip_address

- host_name

- check_command

#service nagios restart

$$$$$$

#### idrac.cfg file ###

define host{

        host_name                       idrac-dut

        alias                           iDRAC Server

        address                         $idrac_ip_address

        check_command                   check-host-alive

        check_interval                  1

        retry_interval                  1

        max_check_attempts              5

        check_period                    24x7

        process_perf_data               0

        retain_nonstatus_information    0

        contact_groups                  admins

        notification_interval           1

        notification_period             24x7

        notification_options            d,u,r

        }

define command{

command_name    check-idrac

command_line   python /usr/local/nagios/libexec/idrac_2.0b9.py -H $idrac_ip_address -c public -m /usr/share/snmp/mibs/IDRAC-MIB.mib -n | tee /tmp/test.log

}

define service{

host_name       idrac-dut

service_description     OnlyForTesting

check_command   check-idrac

max_check_attempts      5

check_interval  1

retry_interval  1

check_period    24x7

notification_interval   3

notification_period     24x7

notification_options    w,c,r

contacts        nagiosadmin

contact_groups  admins

        }

-------------------------------------- End of How-To ----------------------------------