一.安装环境的配置

1.关闭防火墙。

[root@Nagios ~]# service iptables stop

2.关闭SELinux

[root@Nagios ~]# vim /etc/selinux/config

将SELINUX=disabled

二.安装必要软件

[root@Nagios ~]# yum -y install wget make openssl openssl-devel httpd php gcc glibc glibc-common gd gd-devel net-snmp mysql mysql-server mysql-devel perl perl-devel gnutls gnutls-devel

1.Nagios账户及组的添加

useradd nagios

groupadd nagios

usermod -a -G nagios nagios

usermod -a -G nagios apache

2..编译与安装nagios

wget http://jaist.dl.sourceforge.net/project/nagios/nagios-4.x/nagios-4.0.8/nagios-4.0.8.tar.gz

tar jxvf nagios-4.0.8 -C /usr/src/

cd /usr/src/nagios-4.0.8

./configure --prefix=/usr/local/nagios --with-command-group=nagios --with-nagios-user=nagios --with-nagios-group=nagios

make all

make clean

make all

make install

make install-init    //服务启动文件

make install-commandmode    //命令文件

make install-config //配置

make install-webconf //apache配置

/usr/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin  //输入nagios的web管理密码

[root@Nagios nagios]# cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/

[root@Nagios nagios]# chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers/

测试nagios的配置文件

[root@Nagios nagios]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg（最好做成一个脚本文件 随时检查nagios配置）

如果最后出现

Total Warnings: 0

Total Errors:   0

Things look okay - No serious problems were detected during the pre-flight check

就证明nagios配置无误可正常启动！

Nagios plugin的安装

yum -y install gd gd-devel *openssl*

wget http://nagios-plugins.org/download/nagios-plugins-2.0.3.tar.gz

[root@Nagios nagios]# tar zxvf nagios-plugins-2.0.3.tar.gz-C /usr/src/

[root@Nagios nagios]#cd /usr/src/nagios-plugins-2.0.3

[root@Nagios nagios-plugins-2.0.3]# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-extra-opts --enable-perl-modules --enable-libtap

编译成功后，会出现如下信息：

--with-apt-get-command:

--with-ping6-command: /bin/ping6 -n -U -w %d -c %d %s

--with-ping-command: /bin/ping -n -U -w %d -c %d %s

--with-ipv6: yes

--with-mysql: /usr/bin/mysql_config

--with-openssl: yes

--with-gnutls: no

--enable-extra-opts: yes

--with-perl: /usr/bin/perl

--enable-perl-modules: yes

--with-cgiurl: /nagios/cgi-bin

--with-trusted-path: /bin:/sbin:/usr/bin:/usr/sbin

--enable-libtap: yes

[root@Nagios nagios-plugins-2.0.3]# make

[root@Nagios nagios-plugins-2.0.3]# make install

将nagios及httpd加入启动项，并自动启动

[root@Nagios nagios-plugins-2.0.3]# chkconfig --add nagios

[root@Nagios nagios-plugins-2.0.3]# chkconfig --level 35 nagios on

[root@Nagios nagios-plugins-2.0.3]# chkconfig --add httpd

[root@Nagios nagios-plugins-2.0.3]# chkconfig --level 35 httpd on

安装完毕！