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
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: