Nagios+Apache+Nagios-nrpe-server 配置安装
版本信息
Ubuntu 16.04
参考文献
https://www.howtoforge.com/tutorial/ubuntu-nagios/
安装依赖
sudo apt-get install wget build-essential apache2 php apache2-mod-php7.0 php-gd libgd-dev sendmail unzip
添加group和user
useradd nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagios,nagcmd www-data
安装 Nagios
- Step 1 下载源码&解压:
cd /usr/local
wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.2.0.tar.gz
tar -xzvf nagios-4.2.0.tar.gz
- Step 2 编译&安装
cd nagios-4.2.0
./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
- Step 3 复制文件到目录下&修改权限
cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/
chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers
- Step 4 安装nagios补丁文件
下载&解压
wget https://nagios-plugins.org/download/nagios-plugins-2.1.2.tar.gz
tar -xzf nagios-plugins-2.1.2.tar.gz
cd nagios-plugin-2.1.2/
./configure --with-nagios-user=nagios --with-nagios-group=nagios --with-openssl
make
make install
- Step 5 配置nagios文件
vim /usr/local/nagios/etc/nagios.cfg
去掉原文件里面下面内容前面的"#"
cfg_dir=/usr/local/nagios/etc/servers
# 保存退出
# 新建文件夹
mkdir -p /usr/local/nagios/etc/servers
# 修改contacts.cfg配置文件
vim /usr/local/nagios/etc/objects/contacts.cfg

配置Apache
- Step 1 启动Apache模块
sudo a2enmod rewrite
sudo a2enmod cgi
- Step 2 创建密码&用户名
sudo htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
- Step 3 启用Nagios虚拟主机
sudo ln -s /etc/apache2/sites-available/nagios.conf /etc/apache2/sites-enabled/
- Step 4 开启Apache和Nagios
cd /etc/init.d/
cp /etc/init.d/skeleton /etc/init.d/nagios
# 配置nagios文件
vim /etc/init.d/nagios
# 在配置文件内加入下面内容
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
- Step 5 使之可执行并开启服务
chmod +x /etc/init.d/nagios
service apache2 restart
servuce nagios start
# 若nagios开启失败,可尝试下面的方法:
/etc/init.d/nagios start
- Step 6 开启成功后,可用网页进行查看
输入网址:http://192.168.3.12/nagios
弹出登录的框框
用户名:nagiosadmin
密 码:justdoit

将主机添加到监视器
因为只有一台服务器,尝试可否在同台电脑上配置nagios服务
Nagios Server IP : 192.168.3.12
Ubuntu Host IP : 192.168.3.12
- Step 1 在主机上安装NRPE Service
sudo apt-get install nagios-nrpe-server nagios-plugins
- Step 2 配置 NRPE
vim /etc/nagios/nrpe.cfg
# 在server_address添加Nagios Server IP 192.168.3.12

- Step 3 开启 NRPE
sudo /etc/init.d/nagios-nrpe-server start
# 注(NRPE之关闭和重启):
# 不用操作
sudo /etc/init.d/nagios-nrpe-server stop
sudo /etc/init.d/nagios-nrpe-server restart
- Step 4 在主机上添加Nagios Server
vim /usr/local/nagios/etc/servers/ubuntu_host.cfg
# 配置文件的内容:
# Ubuntu Host configuration file define host { use linux-server host_name ubuntu_host alias Ubuntu Host address 192.168.3.12 #请注意要换为被监听计算机的id 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 }
# 查看是否配置正确
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

- Step 6 重启各种服务
# NRPE Service:
sudo /etc/init.d/nagios-nrpe-server restart
# Apache and Nagios
service apache2 restart
sudo /etc/init.d/nagios restart
- Step 7 测试是否配置成功

总结
这个样子好像就是配置成功了吧!自己半道出家,对这些还不太了解具体是搞毛的,说不出123来。但是,看结果应该是完成了检测的功能。
应该就是可以在同台计算机上配置这个冬冬了,那么,在两台电脑上配置的话,把被检测计算机的id换上就应该没问题了。
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