Installing Nagios3 on RHEL5 from source

Installing Nagios3 on RHEL5 from source

OS: CentOS-5.6

MySQL: 5.0.77

Nagios-core: 3.2.3

Nagios-plugins: 1.4.15

NDOUtils: 1.4b9

0. Required Packages

# yum install gcc imake binutils cpp \

openssl openssl-devel httpd \

libpng libpng-devel \

libjpeg libjpeg-devel perl mysql-devel \

gd gd-devel php glibc glibc-common

1. Create Account Information

# groupadd nagios

# groupadd nagcmd

# useradd -g nagios -G nagioscmd -d /opt/nagios nagios

# grep -r ^User  /etc/httpd/*

/etc/httpd/conf/httpd.conf:User apache

# usermod -G nagcmd apache

# mkdir -p /opt/nagios /etc/nagios /var/nagios

# chown nagios.nagios /opt/nagios /etc/nagios /var/nagios

# chmod 775 /opt/nagios /etc/nagios /var/nagios

2. Installing Nagios Core

# tar xvf nagios-3.2.3.tar.gz.gz

# cd nagios-3.2.3

# ./configure --prefix=/opt/nagios \

--sysconfdir=/etc/nagios \

--localstatedir=/var/nagios \

--libexecdir=/opt/nagios/plugins \

--with-command-group=nagcmd

# make all

# make install

# make install-init

# make install-config

# make install-commandmode

# make install-webconf

# htpasswd -c /etc/nagios/htpasswd.users nagiosadmin

# chkconfig --add nagios 

# chkconfig nagios on

3. Installing Nagios Plugins

# tar xzf nagios-plugins-1.4.15.tar.gz

# cd nagios-plugins-1.4.15

# ./configure --prefix=/opt/nagios \

--sysconfdir=/etc/nagios \

--localstatedir=/var/nagios \

--libexecdir=/opt/nagios/plugins \

--with-nagios-user=nagios \

--with-nagios-group=nagios

# make

# make install

4. Installing NDO Utilities

# tar xzf ndoutils-1.4b9.tar.gz

# cd ndoutils-1.4b9

# ./configure --prefix=/opt/nagios  \

--sysconfdir=/etc/nagios \

--localstatedir=/var/nagios \

--libexecdir=/opt/nagios/plugins  \

--with-ndo2db-user=nagios \

--with-ndo2db-group=nagios

# make

# cd src

# cp ndomod-3x.o ndo2db-3x log2ndo file2sock /opt/nagios/bin

# cd ../db

# mysql -uroot -p

> create database `nagios`;

> grant all on `nagios`.* to 'nagios'@'localhost' identified by 'nagios';

> exit;

# ./installdb -unagios -pnagios -dnagios

# cp /etc/nagios/nagios.cfg /etc/nagios/nagios.cfg.org

# cd ../config

# vi nagios.cfg

# commont out this line: 

# broker_module=/opt/nagios/bin/ndomod-2x.o config_file=/etc/nagios/ndomod.cfg

# uncommont this line: 

broker_module=/opt/nagios/bin/ndomod-3x.o config_file=/etc/nagios/ndomod.cfg

# cat nagios.cfg >> /etc/nagios/nagios.cfg

# cp ndo2db.cfg-sample /etc/nagios/ndo2db.cfg

# cp ndomod.cfg-sample /etc/nagios/ndomod.cfg

# vi /etc/nagios/ndo2db.cfg

# change db_user and db_pass to:

db_user=nagios

db_pass=nagios

# chown -R nagios.nagios /etc/nagios/

# chown -R nagios.nagios /opt/nagios/

# vi /etc/nagios/nagios.cfg

# make sure that the line is uncommented: 

event_broker_options=-1

# vi /etc/init.d/nagios

# add the following contents:

NDOBin=${prefix}/bin/ndo2db-3x

NDOCfgFile=${prefix}/etc/ndo2db.cfg

NDOPidFile=${prefix}/var/ndo2db.pid

# Check that ndo2db exists.

if [ ! -f $NDOBin ]; then

echo "Executable file $NDOBin not found. Exiting."

exit 1

fi

# Check that ndo2db.cfg exists.

if [ ! -f $NDOCfgFile ]; then

echo "Configuration file $NDOCfgFile not found. Exiting."

exit 1

fi

echo "Starting nagios database connection"

su - $NagiosUser -c "$NDOBin -c $NDOCfgFile"

if [ $? -ne 0 ]; then

echo "Error starting database connection"

exit 1

else

echo `ps -ef | grep ndo2db | grep -v 'grep' | gawk '{ print $2 }' ` > $NDOPidFile

fi

echo "Stopping nagios database connection"

if test ! -f $NDOPidFile; then

echo "No lock file found in $NDOPidFile"

return 1

fi

NDOPID=`head -n 1 $NDOPidFile`

kill $2 $NDOPID

rm -f $NDOPidFile

Please refer to the attachment for full version.

 nagios.zip   

5. Starting Services

# service httpd restart

# service nagios start

Starting nagios database connection

Starting nagios: done.

check syslog for info