nagios监控

nagios监控

一、 配置nagios监控
1、 配置LAMP平台
1）
安装LAMP软件
[[e-mail] ~]# rm -rf /etc/yum.repos.d/CentOS-*
[[e-mail] ~]# mount /dev/cdrom /mnt/
mount: /dev/sr0 写保护，将以只读方式挂载
[[e-mail] ~]# yum -y install httpd mariadb mariadb-server php php-mysql openssl-devel
2）
创建php测试文件
[[e-mail] ~]# vim /var/www/html/index.php

<?php phpinfo(); ?>

3）
客户端访问

4）
启动apache、mariadb
[[e-mail] ~]# systemctl start httpd
[[e-mail] ~]# systemctl enable httpd
[[e-mail] ~]# systemctl start mariadb
[[e-mail] ~]# systemctl enable mariadb
5）
创建管理nagios账户
[[e-mail] ~]# useradd -M -s /sbin/nologin nagios
6）
配置nagios
[[e-mail] ~]# umount /mnt/

[[e-mail] ~]# tar zxvf /mnt/nagios-4.0.1.tar.gz -C /usr/src/
[[e-mail] nagios-4.0.1]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
7）
安装nagios
[[e-mail] nagios-4.0.1]# make all && make install && make install-init
[[e-mail] nagios-4.0.1]# make install-commandmode && make install-config
8）
设置目录的所有者
[[e-mail] ~]# chown -R nagios:nagios /usr/local/nagios/
9）
添加系统访问设置开机自启
[[e-mail] ~]# chkconfig --add nagios
[[e-mail] ~]# chkconfig --level 35 nagios on
2、 安装nagios依赖组件
1）
安装nagios-plugins
[[e-mail] ~]# tar -zxvf /mnt/nagios-plugins-1.5.tar.gz -C /usr/src/
[[e-mail] ~]# cd /usr/src/nagios-plugins-1.5/
[[e-mail] nagios-plugins-1.5]# ./configure --prefix=/usr/local/nagios
[[e-mail] nagios-plugins-1.5]# make && make install
2）
安装nrpe
[[e-mail] ~]# tar zxvf /mnt/nrpe-2.15.tar.gz -C /usr/src/
[[e-mail] ~]# cd /usr/src/nrpe-2.15/
[[e-mail] nrpe-2.15]# ./configure && make all && make install-plugin
3、 配置httpd支持nagios
1）
修改apache主配置文件
[[e-mail] ~]# 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 Access”
AuthType Basic
AuthUserFile “/usr/local/nagios/etc/htpasswd.users”
Require valid-user

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

2）
生成登陆验证账户密码
[[e-mail] ~]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password:
Re-type new password:
3）
重新启动apache
[[e-mail] ~]# systemctl restart httpd
4、 配置sendmail
1）
安装sendmail
[[e-mail] ~]# tar zxvf /mnt/sendEmail-v1.55.tar.gz -C /usr/src/
2）
移动sebdEnail到bin下
[[e-mail] ~]# mv /usr/src/sendEmail-v1.55/sendEmail /usr/local/bin/
3)
修改配置文件
[[e-mail] ~]# vim /usr/local/nagios/etc/nagios.cfg
36 cfg_dir=/usr/local/nagios/etc/conf
4）
创建目录
[[e-mail] ~]# mkdir /usr/local/nagios/etc/conf/
5、 定义nagios命令
[[e-mail] ~]# vim /usr/local/nagios/etc/objects/commands.cfg
define command{
command_name notify-host-by-sendEmail command_line /usr/bin/printf “%b” “***** Nagios ***\n\nNotification Type: $NOTIFICATIONTYPE$NOTIFICATIONTYPE\nHost: $HOSTNAME$HOSTNAME\nState: $HOSTSTATE$HOSTSTATE\nAddress: $HOSTADDRESS$HOSTADDRESS\nInfo: $HOSTOUTPUT$HOSTOUTPUT\n\nDate/Time: $LONGDATETIME$LONGDATETIME\n" | /usr/local/bin/sendEmail -o fqdn=FQND -f [e-mail] -t $CONTACTEMAIL$CONTACTEMAIL -s smtp.qq.com -u " $NOTIFICATIONTYPE$NOTIFICATIONTYPE Host Alert: $HOSTNAME$HOSTNAME is $HOSTSTATE$HOSTSTATE **” -xu 821409986 -xp hehe
}

define command{
command_name notify-service-by-sendEmail
command_line /usr/bin/printf “%b” “***** Nagios ***\n\nNotification Type: $NOTIFICATIONTYPE$NOTIFICATIONTYPE\n\nService: $SERVICEDESC$SERVICEDESC\nHost: $HOSTALIAS$HOSTALIAS\nAddress: $HOSTADDRESS$HOSTADDRESS\nState: $SERVICESTATE$SERVICESTATE\n\nDate/Time: $LONGDATETIME$LONGDATETIME\n\nAdditional Info:\n\n$SERVICEOUTPUT$SERVICEOUTPUT\n" | /usr/local/bin/sendEmail -o fqdn=FQDN -f [e-mail] -t $CONTACTEMAIL$CONTACTEMAIL -s smtp.qq.com -u " $NOTIFICATIONTYPE$NOTIFICATIONTYPE Service Alert: $HOSTALIAS$HOSTALIAS/$SERVICEDESC$SERVICEDESC is $SERVICESTATE$SERVICESTATE **” -xu 821409986 -xp hehe
}

define command{
command_name check_nrpe
command_line $USER1$USER1/check_nrpe -H $HOSTADDRESS$HOSTADDRESS -c $ARG1$ARG1
}
6、 定义联系人
[[e-mail] ~]# vim /usr/local/nagios/etc/objects/contacts.cfg
define contact{
contact_name 821409986
alias 821409986
service_notification_period 24x7
host_notification_period 24x7
service_notification_options w,u,c,r
host_notification_options d,u,r
service_notification_commands notify-service-by-sendEmail
host_notification_commands notify-host-by-sendEmail
email [e-mail]
}
define contactgroup{
contactgroup_name 821409986
alias Nagios admin
members 821409986
}
7、 定义监控主机
1）
配置监控主机100.20
[[e-mail] ~]# vim /usr/local/nagios/etc/conf/hostgroups.cfg
define hostgroup{
hostgroup_name web-server
alias web-server
members 192.168.100.20
}

[[e-mail] ~]# vim /usr/local/nagios/etc/conf/192.168.100.20.cfg
define host{
host_name 192.168.100.20
alias web-server
address 192.168.100.20
check_command check-host-alive
max_check_attempts 5
check_period 24x7
notification_period 24x7
notification_options d,u,r
contact_groups 821409986
}

define service{
host_name 192.168.100.20
service_description check-host-alive
check_command check-host-alive
max_check_attempts 3
normal_check_interval 2
retry_check_interval 2
check_period 24x7

notification web-server_interval 10

    notification_period                     24x7
    notification_options            w,u,c,r
    contact_groups                  821409986

}

define service{
host_name 192.168.100.20
service_description check-procs
check_command check_nrpe!check_total_procs
max_check_attempts 3
normal_check_interval 2
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
contact_groups 821409986
}

define service{
host_name 192.168.100.20
service_description check-load
check_command check_nrpe!check_load
max_check_attempts 3
normal_check_interval 2
retry_check_interval 2
check_period 24x7
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
contact_groups 821409986
}
2）
设置目录所有者并重启apache、nagios
[[e-mail] ~]# chown -R nagios:nagios /usr/local/nagios/
[[e-mail] ~]# systemctl restart httpd
[[e-mail] ~]# systemctl restart nagios
3）
客户端访问nagios，账户nagisoadmin，密码[e-mail]



8、 部署被监控端
1）
安装软件包
[[e-mail] ~]# rm -rf /etc/yum.repos.d/CentOS-*
[[e-mail] ~]# mount /dev/cdrom /mnt/
mount: /dev/sr0 写保护，将以只读方式挂载
[[e-mail] ~]# yum -y install openssl-devel openssl
2）
安装nagios-plugins插件
[[e-mail] ~]# useradd -s /sbin/nologin nagios
[[e-mail] ~]# umount /mnt/
[[e-mail] ~]# mount /dev/cdrom /mnt/
mount: /dev/sr0 写保护，将以只读方式挂载
[[e-mail] ~]# tar zxvf /mnt/nagios-plugins-1.5.tar.gz -C /usr/src/
[[e-mail] nagios-plugins-1.5]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
[[e-mail] nagios-plugins-1.5]# make && make install
3）
安装nrpe
[[e-mail] ~]# tar zxvf /mnt/nrpe-2.15.tar.gz -C /usr/src/
[[e-mail] ~]# cd /usr/src/nrpe-2.15/
[[e-mail] nrpe-2.15]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
[[e-mail] nrpe-2.15]# make all && make install-plugin && make install-daemon && make install-daemon-config
4）
修改配置文件
[[e-mail] ~]# vim /usr/local/nagios/etc/nrpe.cfg
81 allowed_hosts=127.0.0.1,192.168.100.10
[[e-mail] ~]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
5）
客户端访问