系统监控nagios–安装
安装：环境：CentOS6.0 32bit
1、先相关软件包
yum install httpd php gcc glibc glibc-common gd gd-devel make
2、创建用户信息
useradd -m nagiospasswd nagios
groupadd nagcmd
usermod -a -G nagcmd nagios
usermod -a -G nagcmd apache
3、下载naiogs和nagios-plugins
wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.3.1.tar.gz
wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
4、编译和安装nagios
tar zxf nagios-3.3.1.tar.gz
cd nagios
./configure --with-command-group=nagcmd
make all
make install
make install-init
make install-config
make install-commandmode
5、编辑配置文件（先修改下email地址）
vim /usr/local/nagios/etc/objects/contacts.cfg
6、配置web界面及登陆验证
make install-webconf
htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin 创建web登陆到帐号密码
/etc/init.d/httpd restart
7.安装和编译nagios-plugins
tar zxf nagios-plugins-1.4.15.tar.gz
cd nagios-plugins-1.4.15
./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
8、启动nagios
chkconfig --add nagios
chkconfig nagios on
/etc/init.d/nagios start
9、检查nagios示例配置文件是否正确：
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
其他问题：
在make installl时如果出现如下错误：
/usr/bin/install: omitting directory `includes/rss/extlib'
/usr/bin/install: omitting directory `includes/rss/htdocs'
/usr/bin/install: omitting directory `includes/rss/scripts'
make: *** Error 1
make: Leaving directory `/usr/src/nagios/html'
make: *** Error 2
执行以下命令：
sed -i 's:for file in includes/rss/\*;:for file in includes/rss/\*.\*;:g' ./html/Makefile
sed -i 's:for file in includes/rss/extlib/\*;:for file in includes/rss/extlib/\*.\*;:g' ./html/Makefile
重新make install即可
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