Nagios安装与配置

安装步骤

A为远程被控端

创建用户

1. sudo -s
2. useradd nagios
3. passwd nagios

下载软件包(~/downloads下)

1. wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
2. wget http://prdownloads.sourceforge.net/sourceforge/nagios/nrpe-2.12.tar.gz

安装nagios-plugin

1. sudo -s
2. tar xzf nagios-plugins-1.4.15.tar.gz
3. cd nagios-plugins-1.4.15
4. ./configure
5. make
6. make install
7. chown nagios.nagios /usr/local/nagios
8. chown -R nagios.nagios /usr/local/nagios/libexec

安装xinetd

apt-get install xinetd

安装nrpe

1. tar xzf nrpe-2.12
2. cd nrpe-2.12
3. ./configure
4. make all
5. make install-plugin
6. make install-daemon
7. make install-daemon-config
8. make install-xinetd
9. sudo vi /etc/xinetd.d/nrpe
   • 修改only_from那一行： only_from = 127.0.0.1 ubuntu3.local
   • ubuntu3.local为监控server的ip
10. sudo vi /etc/services
    • 在最后添加一行  nrpe 5666/tcp   #nrpe
11. service xinetd restart
12. 检验nrpe daemon是否装成功
    1. 看netstat -at | grep nrpe 是否出现 “tcp 0 0 *:nrpe *:* LISTEN”
    2. /usr/local/nagios/libexec/check_nrpe -H localhost 是否打印 “NRPE V2.12”

打开防火墙让外部访问5666端口

ufw allow 5666

B为主监控端，外部访问B来查看各台机器的监控信息

参考http://nagios.sourceforge.net/docs/3_0/quickstart-ubuntu.html

安装依赖包

1. sudo apt-get install build-essential
2. sudo apt-get install libgd2-xpm-dev

创建用户

1. sudo -s
2. /usr/sbin/useradd -m -s /bin/bash nagios
3. passwd nagios
4. groupadd nagcmd
5. /usr/sbin/usermod -a -G nagcmd nagios
6. /usr/sbin/usermod -a -G nagcmd www-data

下载nagios包

1. wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.3.tar.gz
2. wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
3. wget http://prdownloads.sourceforge.net/sourceforge/nagios/nrpe-2.12.tar.gz

安装nagios

1. tar xzf nagios-3.2.3.tar.gz
2. cd nagios-3.2.3
3. ./configure --with-command-group=nagcmd
4. make all
5. make install
6. make install-init
7. make install-config
8. make install-commandmode

配置nagios在apache上运行

1. make install-webconf
2. htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
3. 复制/etc/apache2/conf.d/nagios.conf的内容到相应的sites-enable下的配置
4. /etc/init.d/apache2 reload

安装nagios-plugin

1. tar xzf nagios-plugins-1.4.15.tar.gz
2. cd nagios-plugins-1.4.15
3. ./configure –with-nagios-user=nagios –with-nagios-group=nagios
4. make
5. make install

启动nagios

1. 配置当系统重启时，nagios自动启动
   ln -s /etc/init.d/nagios /etc/rcS.d/S99nagios
2. 校验nagios的配置是否出错
   /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
3. /etc/init.d/nagios start
4. 登陆http://localhost/nagios/ account: nagiosadmin password: 123456

安装和配置nrpe连接A

1. tar xzf nrpe-2.12.tar.gz
2. cd nrpe-2.12/
3. ./configure
4. make all
5. make install-plugin

测试连接A
/usr/local/nagios/libexec/check_nrpe -H ubuntu2.local
出现“NRPE V2.12”就代表连接成功