Nagios监控的部署与配置

【安装Nagios】

yum install -y httpd httpd-devel httpd-tools mysql mysql-devel mysql-server php php-devel php-mysql

[root@Nagios-server ~]# wget http://jaist.dl.sourceforge.net/project/nagios/nagios-4.x/nagios-4.0.1/nagios-4.0.1.tar.gz

[root@Nagios-server ~]# tar zxvf nagios-4.0.1.tar.gz

[root@Nagios-server ~]# cd nagios-4.0.1

[root@Nagios-server nagios-4.0.1]# useradd -M -s /sbin/nologin  nagios
[root@Nagios-server nagios-4.0.1]# ./configure --prefix=/usr/local/nagios

[root@Nagios-server nagios-4.0.1]# make all 

[root@Nagios-server nagios-4.0.1]# make install

[root@Nagios-server nagios-4.0.1]# make install-init

[root@Nagios-server nagios-4.0.1]# make install-commandmode

[root@Nagios-server nagios-4.0.1]# make install-config

[root@Nagios-server nagios-4.0.1]# chkconfig --add nagios
[root@Nagios-server nagios-4.0.1]# chkconfig nagios on

[root@Nagios-server nagios-4.0.1]#ls /usr/local/nagios/
bin etc libexec sbin share var

【安装Nagios-plugins插件】

[root@Nagios-server ~]# wget http://www.nagios-plugins.org/download/nagios-plugins-1.5.tar.gz

[root@Nagios-server ~]# tar zxvf nagios-plugins-1.5.tar.gz 

[root@Nagios-server ~]# cd nagios-plugins-1.5
[root@Nagios-server nagios-plugins-1.5]# ./configure --prefix=/usr/local/nagios/

oot@localhost nagios-plugins-1.5]# make && make install 

[安装nrep插件]

[root@Nagios-server ~]# yum install -y openssl-devel

[root@Nagios-server ~]# wget http://jaist.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.15/nrpe-2.15.tar.gz

[root@Nagios-server ~]# tar zxvf nrpe-2.15.tar.gz

[root@Nagios-server ~]# cd nrpe-2.15
[root@Nagios-server nrpe-2.15]# ./configure && make all 

[root@Nagios-server nrpe-2.15]# make install-plugin

为了安全设置页面认证权限

[root@Nagios-server ~]# vim /etc/httpd/conf/httpd.conf

ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin/"
<Directory "/usr/local/nagios/sbin/">
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Acess"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users

Require valid-user
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
Options None
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>

[root@Nagios-server ~]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password:
Re-type new password:
Adding password for user nagiosadmin

[root@Nagios-server ~]# /etc/init.d/nagios start 

配置nagios监控系统

[root@Nagios-server ~]# vim /usr/local/nagios/etc/nagios.cfg

cfg_file=/usr/local/nagios/etc/objects/hostgroups.cfg
cfg_file=/usr/local/nagios/etc/objects/192.168.20.227.cfg

[root@localhost ~]# vim /usr/local/nagios/etc/objects/hostgroups.cfg     #定义主机组

define hostgroup{
hostgroup_name
alias
members 192.168.20.227
}    
[root@localhost ~]# vim /usr/local/nagios/etc/objects/192.168.20.227.cfg     #定义被控主机的本地资源实际监控配置

define host{
use linux-server
host_name 192.168.20.227
alias 192.168.20.227
address 192.168.20.227
check_command check-host-alive
max_check_attempts 5
check_period 24x7
notification_period 24x7
notification_options d,u,r
contact_groups bixiaoyu

define service {
user generic-service
host_name 192.168.20.227
service_description Disk Partition
chkck_comand check_nrpe! check_disk
}
define service {
user generice-service
host_name 192.168.20.227
service_description swap Useage
chkck_comand chck_nrpe! check_swap
}

define service {
user  generice-service
host_name 192.168.20.227
service_description MEM Partition
chkck_comand chck_nrpe! check_mem
}

define service {
user generice-service
host_name 192.168.20.227
service_description Current Load
chkck_comand chck_nrpe! chck_load
}

define service {
user generice-service
host_name 192.168.20.227
service_description Disk Partition
chkck_comand chck_nrpe! check_iostat!5!11
}

define service {
user  generice-service
host_name 192.168.20.227
service_description Ping
chkck_comand chck_ping! 100.0,20%! 500.0,60%
}

 

【nagios被控端】

[root@nagios-clinet ~]# yum install -y openssl openssl-devel

[root@nagios-clinet ~]# useradd -s /sbin/nologin nagios
[root@nagios-clinet ~]# wget http://www.nagios-plugins.org/download/nagios-plugins-1.5.tar.gz

[root@nagios-clinet ~]# tar zxvf nagios-plugins-1.5.tar.gz

[root@nagios-clinet ~]# cd nagios-plugins-1.5
[root@nagios-clinet nagios-plugins-1.5]# ./configure --prefix=/usr/local/nagios

[root@nagios-clinet nagios-plugins-1.5]# make && make install 

[root@nagios-clinet nagios-plugins-1.5]# chown -R nagios:nagios /usr/local/nagios/

[root@nagios-clinet ~]# wget http://jaist.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.15/nrpe-2.15.tar.gz

[root@nagios-clinet ~]# tar zxvf nrpe-2.15.tar.gz

[root@nagios-clinet ~]# cd nrpe-2.15
[root@nagios-clinet nrpe-2.15]# ./configure --prefix=/usr/local/nagios/

[root@nagios-clinet nrpe-2.15]# make all

[root@nagios-clinet nrpe-2.15]# make install-plugin

[root@nagios-clinet nrpe-2.15]# make install-daemon

[root@nagios-clinet nrpe-2.15]# make install-daemon-config

[root@nagios-clinet nrpe-2.15]# ps -ef | wc -l
114
[root@nagios-clinet nrpe-2.15]# more /proc/cpuinfo | grep proc | wc -l
1

[root@nagios-clinet nrpe-2.15]# vim /usr/local/nagios/etc/nrpe.cfg 

allowed_hosts=127.0.0.1,192.168.20.226

[root@nagios-clinet nrpe-2.15]# /usr/local/nagios/bin/nrpe   -c /usr/local/nagios/etc/nrpe.cfg -d 

[root@nagios-clinet nrpe-2.15]# vim /etc/sysconfig/iptables      #开通监控机对5666端口访问的权限

-A INPUT -p tcp --dport 5666 -j ACCEPT

[root@nagios-clinet nrpe-2.15]# /etc/init.d/iptables restart 

[root@Nagios-server ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.20.227
NRPE v2.15

 PS:通过grep -ir 【IP地址】$ *修改完配置文件时，先检查配置文件，然后进行reload重新加载生效

[root@nagios251-219 etc]# /opt/nagios/bin/nagios -v /opt/nagios/etc/nagios.cfg

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