InstallationinstructionsofNagiosonCentOS6.464bit

# Installation instructions of Nagios on CentOS 6.4 64bit

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Author : Larry Zhao

Q Q : 920057952

B L O G: larryzhao.blog.51cto.com

E-mail : zhaolong0508@126.com

# NTP Service

yum install ntp

service ntpd start

chkconfig ntpd on

crontab -e

* * * * * /usr/sbin/ntpdate cn.pool.ntp.org

# Packets Prepare

nagios-3.3.1.tar.gz nagios-plugins-1.4.15.tar.gz nrpe-2.12.tar.gz rrdtool-1.4.7.tar.gz pnp4nagios-0.6.6.tar.gz

# We use X-shell to upload these files to our server

mkdir /upload;cd /upload

######################### Nagios Server 10.0.0.145 ######################################

tar zxvf nagios-3.3.1.tar.gz

tar zxvf nagios-plugins-1.4.15.tar.gz

tar zxvf nrpe-2.12.tar.gz

tar zxvf rrdtool-1.4.7.tar.gz

tar zxvf pnp4nagios-0.6.6.tar.gz

rm -f *.gz

# Environment Prepare

yum install -y net-snmp net-snmp-utils httpd gcc glibc glibc-common *gd* php php-MySQL mysql mysql-server mysql-devel openssl-devel

yum install -y libpangocairo pango pango-devel cairo cairo-devel redhat-lsb-graphics pkgconfig groff glib glib-devel libart* gettext gettext-devel libxml2 libxml2-devel

yum install -y freetype freetype-devel libpng libpng-devel libjpeg libjpeg-devel libiconv libiconv-devel qpixman qpixman-devel

#SELINUX

vim /etc/selinux/config

SELINUX=disabled

#IPTABLES

service iptables stop

chkconfig iptables off

# Install Nagios

groupadd nagcmd

useradd -m nagios

usermod -a -G nagcmd nagios

usermod -a -G nagcmd apache

cd nagios

./configure --with-command-group=nagcmd --enable-event-broker

make all && make install && make install-init && make install-config && make install-commandmode && make install-webconf

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

# type new password twice

Here we use nagios as our password

service httpd start

chkconfig httpd on

cd ../nagios-plugins-1.4.15/

./configure --with-nagios-user=nagios --with-nagios-group=nagios --with-mysql

make && make install

chkconfig --add nagios

chkconfig nagios on

vim /etc/profile

# Insert "PATH=$PATH:/usr/local/nagios/bin" into /etc/profile

PATH=$PATH:/usr/local/nagios/bin

#save and exit

. /etc/profile

nagios -v /usr/local/nagios/etc/nagios.cfg

service nagios start

#Now if you want access your nagios server, http://ip/nagios. Username:nagiosadmin Password:nagios

cd ../nrpe-2.12/

./configure --enable-ssl --with-ssl-lib=/lib/

make all && make install-plugin

# It is necessary to insert some lines of code into /usr/local/nagios/etc/objects/commands.cfg

vim /usr/local/nagios/etc/objects/commands.cfg

#check nrpe

define command{

command_name check_nrpe

command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$

}

#save and exit

#We can use the command_line below to check our config files

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

cd ../rrdtool-1.4.7

./configure --prefix=/usr/local/rrdtool

make && make install

cd ../pnp4nagios-0.6.6

chown nagios.nagios *

chmod +x *

./configure --prefix=/usr/local/pnp4nagios --with-nagios-user=nagios --with-nagios-group=nagios --with-rrdtool=/usr/local/rrdtool/bin/rrdtool

make all

make install

make install-webconf

make install-config

make install-init

cd /usr/local/pnp4nagios/etc/

mv misccommands.cfg-sample misccommands.cfg

mv nagios.cfg-sample nagios.cfg

mv rra.cfg-sample rra.cfg

mv npcd.cfg-sample npcd.cfg

mv process_perfdata.cfg-sample process_perfdata.cfg

cd pages/

mv web_traffic.cfg-sample web_traffic.cfg

cd ../check_commands/

mv check_all_local_disks.cfg-sample check_all_local_disks.cfg

mv check_nrpe.cfg-sample check_nrpe.cfg

mv check_nwstat.cfg-sample check_nwstat.cfg

service npcd restart

# Nagios config files

vim /usr/local/nagios/etc/nagios.cfg

process_performance_data=1

host_perfdata_command=process-host-perfdata

service_perfdata_command=process-service-perfdata

vim /usr/local/nagios/etc/objects/commands.cfg

# 'process-host-perfdata' command definition

define command{

command_name process-host-perfdata

command_line /usr/local/pnp4nagios/libexec/process_perfdata.pl

}

# 'process-service-perfdata' command definition

define command{

command_name process-service-perfdata

command_line /usr/local/pnp4nagios/libexec/process_perfdata.pl

}

command_name process-service-perfdata

command_line /usr/local/nagios/libexec/process_perfdata.pl

}

vim /usr/local/nagios/etc/objects/templates.cfg

define host {

name host-pnp

action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_' class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=_HOST_

}

define service {

name srv-pnp

action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$' class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=$SERVICEDESC$

}

cp /upload/pnp4nagios-0.6.6/contrib/ssi/* /usr/local/nagios/share/ssi/

cd /usr/local/pnp4nagios/share/

mv install.php install.php.bak

#check npcd.cfg

/usr/local/pnp4nagios/bin/npcd -d -f /usr/local/pnp4nagios/etc/npcd.cfg

#First time to access

http://ip/php4nagios

# create some config files as we like

cd /usr/local/nagios/etc/objects/

touch mylinux.cfg;vim mylinux.cfg

define host{

use linux-server,host-pnp

host_name puppet

alias puppty_jd_server

address 10.0.0.148

}

define serviceextinfo {

host_name puppet

service_description check_load

action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$'class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=$SERVICEDESC$

}

define service{

use generic-service,srv-pnp

host_name puppet

service_description check_local_load

check_command check_nrpe!check_load

}

define service{

use generic-service,srv-pnp

host_name puppet

service_description check_users

check_command check_nrpe!check_users

}

vim ../nagios.cfg

#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg

cfg_file=/usr/local/nagios/etc/objects/mylinux.cfg

service nagios restart

service npcd restart

service httpd restart

############################ Nagios Client 10.0.0.148 ###################################

# NTP Service

yum install ntp

service ntpd start

chkconfig ntpd on

crontab -e

* * * * * /usr/sbin/ntpdate cn.pool.ntp.org

# Packets Prepare

nagios-plugins-1.4.15.tar.gz nrpe-2.12.tar.gz

# We use X-shell to upload these files to our server

mkdir /upload;cd /upload

tar zxvf nagios-plugins-1.4.15.tar.gz

tar zxvf nrpe-2.12.tar.gz

rm -f *.gz

# Environment Prepare

yum -y install net-snmp net-snmp-utils openssl-devel gcc glibc glibc-common *gd*

#SELINUX

vim /etc/selinux/config

SELINUX=disabled

#IPTABLES

service iptables stop

chkconfig iptables off

useradd nagios

cd nagios-plugins-1.4.15

./configure --with-nagios-user=nagios --with-nagios-group=nagios

make && make install

cd ../nrpe-2.12

./configure --enable-ssl --with-ssl-lib=/usr/lib/

make all

make install-plugin && make install-daemon && make install-daemon-config

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

cp /usr/local/nagios/etc/nrpe.cfg /etc/nrpe.cfg

#allowed_hosts change to the nagios server's IP address

vim /etc/nrpe.cfg

allowed_hosts=10.0.0.145

#Three lines need to change, you can use set nu to find them

vim /etc/snmp/snmpd.conf

line 41 com2sec notConfigUser default larryzhao

line 62 access notConfigGroup "" any noauth exact mib2 none none

line 89 view mib2 included .iso.org.dod.internet.mgmt.mib-2 fc

service snmpd restart

chkconfig snmpd on

#Start nrpe service

/usr/local/nagios/bin/nrpe -c /etc/nrpe.cfg -d

#To check nrpe work status

ps -ef |grep nrpe

#add nrpe to rc.local

vim /etc/rc.d/rc.local

/usr/local/nagios/bin/nrpe -c /etc/nrpe.cfg -d

############################### E-mail Notice ##########################################

yum install -y sendmail

yum install -y sendmail-cf

m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf

vi /etc/mail/local-host-names

larryzhao.com

vi /etc/mail/submit.cf

find #Dj$w.Foo.COM

Djlarryzhao.com

service sendmail restart

vim /usr/local/nagios/etc/objects/contacts.cfg

define contact{

contact_name nagiosadmin

use generic-contact

alias Nagios Admin

email zhaolong0508@126.com,920057952@qq.com

}

vim /usr/local/nagios/etc/objects/commands.cfg

# 'notify-host-by-email' command definition

define command{

command_name notify-host-by-email

command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$

}

# 'notify-service-by-email' command definition

define command{

command_name notify-service-by-email

command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$

}

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