ubuntu16.04安装配置nagios

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ubuntu16.04安装配置nagios

youcongtech 2018-03-25 13:59:00 浏览1301
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参考博文:https://www.howtoing.com/ubuntu-nagios/

该博文真实有效可供参考,按照步骤,基本可以成功

一.安装的先决条件

sudo apt-get install wget build-essential apache2 php apache2-mod-php7.0 php-gd libgd-dev sendmail unzip

二.用户和组配置

useradd nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagios,nagcmd www-data

三.安装nagios

1.下载提取Nagios核心

cd ~
wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.2.0.tar.gz
tar -xzf nagios*.tar.gz
cd nagios-4.2.0

2.编译nagios

 

./configure --with-nagios-group=nagios --with-command-group=nagcmd

 

make all
sudo make install
sudo make install-commandmode
sudo make install-init
sudo make install-config
/usr/bin/install -c -m 644 sample-config/httpd.conf /etc/apache2/sites-available/nagios.conf

 

并将evenhandler目录复制到nagios目录中:

cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/
chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers

3.安装Nagios插件

下载提取nagios插件:

cd ~
wget https://nagios-plugins.org/download/nagios-plugins-2.1.2.tar.gz
tar -xzf nagios-plugins*.tar.gz
cd nagios-plugin-2.1.2/

 

以下命令安装nagios插件:

./configure --with-nagios-user=nagios --with-nagios-group=nagios --with-openssl
make
make install

 

4.配置nagios

安装阶段完成后,您可以在/ usr / local / nagios /中找到Nagios的默认配置。

我们将配置Nagios和Nagios联系人。

使用vim编辑默认的nagios配置:

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

 

取消注释线路51为主机监视器配置。

cfg_dir=/usr/local/nagios/etc/servers

保存并退出。

添加名为servers的新文件夹:

mkdir -p /usr/local/nagios/etc/servers

可以在contact.cfg文件中配置Nagios联系人。 打开它使用:

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

然后用您自己的电子邮件替换默认电子邮件。

 

 

四、配置Apache

1. 启用Apache模块

sudo a2enmod rewrite
sudo a2enmod cgi

您可以使用htpasswd命令为nagios Web界面配置用户nagiosadmin

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

并输入密码

2. 启用Nagios虚拟主机

sudo ln -s /etc/apache2/sites-available/nagios.conf /etc/apache2/sites-enabled/

3.启动Apache和Nagios

service apache2 restart
service nagios start

当Nagios启动时,您可能会看到以下错误:

Starting nagios (via systemctl): nagios.serviceFailed

cd /etc/init.d/
cp /etc/init.d/skeleton /etc/init.d/nagios

vim /etc/init.d/nagios

并添加以下代码:
DESC="Nagios"
NAME=nagios
DAEMON=/usr/local/nagios/bin/$NAME
DAEMON_ARGS="-d /usr/local/nagios/etc/nagios.cfg"
PIDFILE=/usr/local/nagios/var/$NAME.lock


使其可执行并启动Nagios:

chmod +x /etc/init.d/nagios
service apache2 restart
servuce nagios start

五、测试Nagios服务器

   在我的情况下,请打开浏览器并访问Nagios服务器ip: http : //192.168.126.130/nagios 。

 Nagios用apache htpasswd登录

用户名默认为nagiosadmin
密码就是你之前通过执行该 sudo htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin 命令输入的密码

六、添加主机监控
在我的另外IP:192.168.126.128
连接我的另外主机

1. 连接到ubuntu主机
ssh root@192.168.126.128
2.安装NRPE服务
sudo apt-get install nagios-nrpe-server nagios-plugins
3.配置NRPE
vim /etc/nagios/nrpe.cfg
并将nagios server IP 192.168.126.130添加到server_aaddress

server_address = 192.168.126.130
4.重新启动NRPE
service nagios-nrpe-server restart
5.将Ubuntu主机添加到Nagios服务器
请连接到Nagios服务器:
ssh root@192.168.126.130

然后为/ usr / local / nagios / etc / servers /中的主机配置创建一个新文件。
vim /usr/local/nagios/etc/servers/ubuntu_host.cfg
添加如下内容:
# Ubuntu Host configuration file

define host {
        use                          linux-server
        host_name                    ubuntu_host
        alias                        Ubuntu Host
        address                      192.168.1.10
        register                     1
}

define service {
      host_name                       ubuntu_host
      service_description             PING
      check_command                   check_ping!100.0,20%!500.0,60%
      max_check_attempts              2
      check_interval                  2
      retry_interval                  2
      check_period                    24x7
      check_freshness                 1
      contact_groups                  admins
      notification_interval           2
      notification_period             24x7
      notifications_enabled           1
      register                        1
}

define service {
      host_name                       ubuntu_host
      service_description             Check Users
      check_command           check_local_users!20!50
      max_check_attempts              2
      check_interval                  2
      retry_interval                  2
      check_period                    24x7
      check_freshness                 1
      contact_groups                  admins
      notification_interval           2
      notification_period             24x7
      notifications_enabled           1
      register                        1
}

define service {
      host_name                       ubuntu_host
      service_description             Local Disk
      check_command                   check_local_disk!20%!10%!/
      max_check_attempts              2
      check_interval                  2
      retry_interval                  2
      check_period                    24x7
      check_freshness                 1
      contact_groups                  admins
      notification_interval           2
      notification_period             24x7
      notifications_enabled           1
      register                        1
}

define service {
      host_name                       ubuntu_host
      service_description             Check SSH
      check_command                   check_ssh
      max_check_attempts              2
      check_interval                  2
      retry_interval                  2
      check_period                    24x7
      check_freshness                 1
      contact_groups                  admins
      notification_interval           2
      notification_period             24x7
      notifications_enabled           1
      register                        1
}

define service {
      host_name                       ubuntu_host
      service_description             Total Process
      check_command                   check_local_procs!250!400!RSZDT
      max_check_attempts              2
      check_interval                  2
      retry_interval                  2
      check_period                    24x7
      check_freshness                 1
      contact_groups                  admins
      notification_interval           2
      notification_period             24x7
      notifications_enabled           1
      register                        1
}

 

您可以在/usr/local/nagios/etc/objects/commands.cfg文件中找到许多check_command 。 如果您想添加更多的服务,如DHCP,POP等,请参阅

现在检查配置:

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

6.重新启动所有服务

在Ubuntu主机上启动NRPE服务:

service nagios-nrpe-server restart

...在Nagios服务器上,启动Apache和Nagios:

service apache2 restart
service nagios restart

7.测试Ubuntu主机

从浏览器打开Nagios服务器,并查看受监控的ubuntu_host。

Ubuntu主机在受监控的主机上可用。

 

 

  

 

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