第一部分：Nagios的安装与配置

一、基础环境准备

　　1.yum源配置

yum -y localinstall ftp://195.220.108.108/linux/dag/redhat/el6/en/x86_64/dag/RPMS/rpmforge-release-0.5.2-1.el6.rf.x86_64.rpm

yum -y localinstall https://repo.mysql.com//mysql57-community-release-el6-11.noarch.rpm

#修改mysql源为5.7关闭，5.6 开启

　　2.安装GD及LAMP平台

yum -y install httpd gd fontconfig-devel libjpeg-devel libpng-devel gd-devel perl-GD openssl-devel perl-DBD-MySQL mysql-community-server mysql-community-devel php php-devel php-mysql php-gd php-ldap php-xml php-mbstring

　　3.Perl及扩展模块

yum -y install perl-Config-IniFiles perl-DBI perl-DBD-MySQL perl-Crypt-DES perl-Digest-SHA1

　　4.安装SNMP及依赖库

yum -y install perl-Digest-HMAC net-snmp-utils perl-Socket6 perl-IO-Socket-INET6 net-snmp net-snmp-libs php-snmp

　　5.安装RRDTool绘图工具

yum -y install rrdtool perl-rrdtool

　　6.安装其他所需基础包

yum -y install dmidecode lm_sensors perl-Net-SNMP net-snmp-perl fping cpp gcc gcc-c++ libstdc++ glib2-devel

　　7.安装PEAR

yum -y install php-pear php-pear-DB

二、Nagios的安装

　　1.下载安装包

cd /usr/local/src && wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.3.2.tar.gz#_ga=2.75280209.2104107475.1497007184-1455607473.1497007184

　　2.创建nagios用户和用户组

groupadd -g 9000 nagios && groupadd -g 9001 nagcmd && useradd -u 9000 -g nagios -G nagcmd -d /home/nagios -c "Nagios Admin" nagios && usermod -G nagcmd apache

#执行上面的语句限于在Centos6，验证httpd运行用户：grep "^User" /etc/httpd/conf/httpd.conf

　　3.编译安装nagios

configure配置参数清单
序号	属性名	参数值	configure参数
1	nagios安装目录	/usr/local/nagios	–prefix
2	nagios配置文件目录	/usr/local/nagios/etc	–sysconfdir
3	nagios运行数据目录	/usr/local/nagios/var	–localstatedir
4	nagios用户	nagios(9000)	–with-nagios-user
5	nagios用户组	nagios(9000)	–with-nagios-group
6	nagios命令组	nagios(9001)	–with-command-group
7	开启nagios事件代理的Perl解释器（可以在nagios运行时，使事件代理Event Broker模块提供对外调用接口）		–enable-embedded-perl
8	开启Perl缓存		–with-perlcache

mkdir /usr/local/nagios && chown -R nagios:nagios /usr/local/nagios
cd /usr/local/src/ && tar xf nagios-4.3.2.tar.gz && cd nagios-4.3.2 && ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --with-command-group=nagcmd --enable-embedded-perl --with-perlcache --enable-nanosleep --enable-broker 
make all && make install && make install-init && make install-commandmode && make install-webconf && make install-config

在/usr/local/nagios下的目录清单
序号	目录	内容清单
1	./bin	Nagios可执行程序所在目录
2	./libexec	外部插件存放目录
3	./sbin	CGI脚本
4	./share	文档、HTML文件存放目录
5	./etc	配置文件目录
6	./var	运行时日志、数据文件、lock文件所在目录
7	./var/archives	Nagios日志自动归档目录
8	./var/rw	用来存放外部命令文档的目录

三、安装nagios插件

　　1.下载安装包

cd /usr/local/src && wget https://nagios-plugins.org/download/nagios-plugins-2.2.1.tar.gz#_ga=2.75280209.2104107475.1497007184-1455607473.1497007184

　　2.编译安装nagios-plugins

cd /usr/local/src/ && tar xf nagios-plugins-2.2.1.tar.gz && cd nagios-plugins-2.2.1 && ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --with-openssl=/usr/bin/openssl --enable-perl-modules && make && make install

　　检查清单：

四、配置Nagios的WEB用户界面

　　1.配置/etc/httpd/conf.d/nagios.conf文件 #前提已经安装上述步骤执行了 make install-webconf

# SAMPLE CONFIG SNIPPETS FOR APACHE WEB SERVER
#
# This file contains examples of entries that need
# to be incorporated into your Apache web server
# configuration file.  Customize the paths, etc. as
# needed to fit your system.

ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"

<Directory "/usr/local/nagios/sbin">
#  SSLRequireSSL
   Options ExecCGI
   AllowOverride None
   <IfVersion >= 2.3>
      <RequireAll>
         Require all granted
#        Require host 127.0.0.1

         AuthName "Nagios Access"
         AuthType Basic
         AuthUserFile /usr/local/nagios/etc/htpasswd.users
         Require valid-user
      </RequireAll>
   </IfVersion>
   <IfVersion < 2.3>
#      Order allow,deny
#      Allow from all
       Order deny,allow
       Deny from all
       Allow from 127.0.0.1
       Allow from 10.124.151.0/24

      AuthName "Nagios Access"
      AuthType Basic
      AuthUserFile /usr/local/nagios/etc/htpasswd.users
      Require valid-user
   </IfVersion>
</Directory>

Alias /nagios "/usr/local/nagios/share"

<Directory "/usr/local/nagios/share">
#  SSLRequireSSL
   Options None
   AllowOverride None
   <IfVersion >= 2.3>
      <RequireAll>
         Require all granted
#        Require host 127.0.0.1

         AuthName "Nagios Access"
         AuthType Basic
         AuthUserFile /usr/local/nagios/etc/htpasswd.users
         Require valid-user
      </RequireAll>
   </IfVersion>
   <IfVersion < 2.3>
      Order allow,deny
      Allow from all
#     Order deny,allow
#     Deny from all
#     Allow from 127.0.0.1

      AuthName "Nagios Access"
      AuthType Basic
      AuthUserFile /usr/local/nagios/etc/htpasswd.users
      Require valid-user
   </IfVersion>
</Directory>

　　2.检查Selinux是否已关闭

　　3.设置访问用户认证与授权

　　　　首先确认文件/usr/local/nagios/etc/cgi.cfg

　　然后执行下面的命令：

#第一次创建用户
htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
#第二次+创建用户
htpasswd  /usr/local/nagios/etc/htpasswd.users nagiosatest
#设置文件属性
chmod g+w /usr/local/nagios/etc/htpasswd.users && chown nagios:nagios /usr/local/nagios/etc/htpasswd.users

　　4.启动httpd服务

service httpd start

　　5.启动nagios并登录验证

service nagios start

　　　　登录http://IP/nagios输入用户名密码查看是否正常。

五、nrpe安装：

　　1.下载nrpe-3.1.0.tar.gz

cd /usr/local/src && wget https://ncu.dl.sourceforge.net/project/nagios/nrpe-3.x/nrpe-3.1.1/nrpe-3.1.1.tar.gz

　　2.编译安装

cd /usr/local/src/nrpe-3.1.0 &&  ./configure --prefix=/usr/local/nagios && make all && make install && make install-config && make install-plugin

　　3.配置守护进程启动：/etc/xinetd.d/nrpe

# default: on
# description: NRPE (Nagios Remote Plugin Executor)
service nrpe
{
       	flags           = REUSE
        socket_type     = stream    
	port		= 5666    
       	wait            = no
        user            = nagios
	group		= nagios
       	server          = /usr/local/nagios/bin/nrpe
        server_args     = -c /usr/local/nagios/etc/nrpe.cfg --inetd
	log_type        = file /tmp/nrpe.log
       	log_on_failure  += USERID
        disable         = no
	only_from       = 10.124.151.248
}

六、nagios监控配置：

本文链接：https://www.cnblogs.com/songqingbo/articles/6979160.html

第一部分：Nagios的安装与配置

一、基础环境准备

二、Nagios的安装

三、安装nagios插件

四、配置Nagios的WEB用户界面

五、nrpe安装：

六、nagios监控配置：

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