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CentOS6.4 安装Nagios 并监控端口
2017-08-26 13:28:17   阅读721次

1、下载所需文件nagios-3.4.3.tar.gz,nagios-plugins-1.4.15.tar.gz,nrpe-2.14.tar.gz,sendEmail-v1.56.tar.gz

    下载地址:nagios-3.4.3.zip   解压密码:369

nagios20170826140544.zip

2、安装所需的依赖包

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

3、配置用户

useradd nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagcmd apache

4、安装nagios-3.4.3.tar.gz

tar zxvf nagios-3.4.3.tar.gz
cd nagios
./configure --prefix=/usr/local/nagios --with-command-group=nagcmd --with-nagios-user=nagios --with-nagios-group=nagios
make all
make install
make install-init
make install-commandmode
make install-config
make install-webconf
htpasswd -c /usr/local/nagios/etc/htpasswd.users admin    #访问页面用的
chkconfig --add nagios
chkconfig nagios on


修改nagios配置文件cgi.cfg,将use_authentication=1改为use_authentication=0

vi /usr/local/nagios/etc/cgi.cfg

5、安装nagios-plugins-1.4.15.tar.gz

tar zxvf nagios-plugins-1.4.15.tar.gz
cd nagios-plugins-1.4.15./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
make && make install
chown -R nagios.nagios /usr/local/nagios/


6、安装nrpe-2.14.tar.gz

tar zxvf nrpe-2.14.tar.gz
cd nrpe-2.14./configure
make all
make install-plugin

7、安装 sendEmail-v1.56.tar.gz,当主机或服务宕掉或恢复时发送邮件

参考:http://www.cnblogs.com/kgdxpr/p/3326190.html

8、开始配置

修改主配置文件 

vi /usr/local/nagios/etc/nagios.cfg

13102039-1e158f0d3abc4a939b46a77ad63501c6.jpg

 配置文件说明

commands.cfg    命令定义配置文件
contacts.cfg        定义联系人
timeperiods.cfg   定义监控时间段的配置文件
templates.cfg      定义主机和服务的一个模板配置文件
hosts.cfg             定义主机配置文件
services.cfg         定义服务配置文件

配置commands.cfg文件

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

先修改发送邮件的命令

13103333-e452132aa1d340c2bfdceac7fd6d371a.jpg

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" | /usr/local/bin/sendEmail -f dsideal_lxyy@163.com -t kgdxpr@163.com -s smtp.163.com -u "** $NOTIFICATIONTYPE$ alert -$HOSTADDRESS$/$HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" -xu dsideal_lxyy -xp 123456 -m test
        }

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" | /usr/local/bin/sendEmail -f dsideal_lxyy@163.com -t kgdxpr@163.com -s smtp.163.com -u "** $NOTIFICATIONTYPE$ alert -$HOSTADDRESS$/$HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" -xu dsideal_lxyy -xp 123456 -m test
        }

增加一个命令(用来监控memcache的端口)

define command{
        command_name    check_port
        command_line    $USER1$/check_tcp -H $HOSTADDRESS$ -p 11211 $ARG2$
        }

配置hosts.cfg文件

vi /usr/local/nagios/etc/objects/hosts.cfg

增加一个主机(注意:需要把注释删掉)

define host{
        use             linux-server        #调用的是templates.cfg中的配置
        host_name       memcached        #主机名
        alias           memcached_server        #描述
        address         10.10.3.13        #IP地址
}

配置services.cfg文件

vi /usr/local/nagios/etc/objects/services.cfg

增加一个服务(注意:需要把注释删掉)

define service {
        use                     generic-service        #调用的是templates.cfg中的配置
        host_name               memcached        #主机名,调用的是hosts.cfg中的配置
        service_description     test_service_description        #说明
        check_command           check_port        #用的命令,调用的是commands.cfg文件中的配置
}

9、启动Apache和nagios

为了不影响实验的结果,请关闭iptables和selinux

service iptables stop
vi /etc/sysconfig/selinux    将SELINUX=enforcing改为SELINUX=disabled (需要重启)


启动Apache前先修改一下配置,不修改的话启动时会报异常。

vi /usr/local/apache/conf/httpd.conf

找到#ServerName www.example.com:80 这行,把注释拿掉,然后改成ServerName localhost:80

chkconfig httpd on
service httpd start service nagios start

10、访问:http://IP/nagios
用户名和密码是上面设置过的。 




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