安装nagios4.0.8
nagios监控，其中包括以下几个组件
core：核心组件，包括基础的web介绍和监控引擎
plugins：监控插件，可以用来监控主机、设备、数据库等
addons：功能组件，用于扩展nagios功能，比如生成趋势图等
Fontends：前台展示，可以用来修改nagios的主界面，类似于皮肤
安装环境是redhat5.7，过程参照官方文档
软件下载：
https://www.nagios.org/downloads/
需要安装的软件包有：
rpm -ivh httpd-2.2.3-53.0.1.el5.x86_64.rpm rpm -ivh apr-devel-1.2.7-11.el5_6.5.x86_64.rpm rpm -ivh apr-util-devel-1.2.7-11.el5_5.2.x86_64.rpm rpm -ivh httpd-devel-2.2.3-53.0.1.el5.x86_64.rpm rpm -ivh libXpm-devel-3.5.5-3.x86_64.rpm rpm -ivh gd-2.0.33-9.4.el5_4.2.x86_64.rpm rpm -ivh gd-devel-2.0.33-9.4.el5_4.2.x86_64.rpm rpm -ivh php-common-5.1.6-27.el5_5.3.x86_64.rpm rpm -ivh php-cli-5.1.6-27.el5_5.3.x86_64.rpm rpm -ivh php-5.1.6-27.el5_5.3.x86_64.rpm rpm -ivh php-devel-5.1.6-27.el5_5.3.x86_64.rpm rpm -ivh net-snmp-5.3.2.2-14.0.1.el5.x86_64.rpm
添加用户和组：
[root@mysql1 Server]# groupadd nagios [root@mysql1 Server]# useradd -g nagios nagios [root@mysql1 Server]# passwd nagios [root@mysql1 Server]# tar zxvf nagios-4.0.8.tar.gz安装nagios core：
[root@mysql1 nagios-4.0.8]#./configure --prefix=/usr/local/nagios
make all make install make install-init make install-config make install-commandmode make install-webconf cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/ chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg /etc/init.d/nagios start
/etc/init.d/httpd start
创建一个web登录的用户
[root@mysql1 nagios-4.0.8]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagios New password: Re-type new password: Adding password for user nagios
解压缩plugins，并且安装：
[root@mysql1 nagios-plugins-2.1.1]# ./configure --with-nagios-user=nagios --with-nagios-group=nagios
make make install
chkconfig --add nagios chkconfig --level 35 nagios on chkconfig --add httpd chkconfig --level 35 httpd on
</pre><pre name="code" class="sql">启动和关闭分别是：
[root@mysql1 nagios-4.0.8]# service nagios start [root@mysql1 nagios-4.0.8]# service httpd start [root@mysql1 nagios-4.0.8]# service httpd stop [root@mysql1 nagios-4.0.8]# service nagios stop
[root@mysql1 nagios-4.0.8]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagios
这里的nagios和设置的密码。