编译安装Nagios及Nagios-Plugins

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tar zxvf nagios-3.2.1.tar.gz
cd nagios-3.2.1
./configure --prefix=/usr/local/nagios --with-command-group=nagcmd --with-gd-lib=/usr/lib --with-gd-inc=/usr/include
make all
make install
make install-init
make install-config
make install-commandmode
cd ..
tar zxvf nagios-plugins-1.4.15.tar.gz
cd nagios-plugins-1.4.15
./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-gourp=nagios --enable-perl-modules
make && make install
cd ..

设置Nagios服务为系统启动服务，
chkconfig --add nagios
chkconfig nagios on
检查nagios配置
echo "/usr/local/lib/" >> /etc/ld.so.conf && ldconfig
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
启动Nagios服务
service nagios start
如果感觉上面的命令比较零散，这里可以建立一个nagios的启动脚本：
echo "/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg" > /bin/nagiostart
echo "service nagios restart" >> /bin/nagiostart
chmod 755 /bin/nagiostart
这是Nagios的初步安装，这里简单把Web管理查看页的认证去了，这样能快速验证Nagios安装成功与否：
sed -i '#use_authentication=1#use_authentication=0#g' /usr/local/nagios/etc/cgi.cfg