CentOS 7.3 安装 Nagios 4.3.4 和 Nagios Plugins 2.2.1
安装要求：1. 纯净最小化安装 CentOS 7.3
2. 使用 root 用户登录系统
3. 有IP地址，系统能连接公网
安装依赖包及工具软件
# yum install -y wget httpd php gcc glibc glibc-common gd gd-devel make net-snmp unzip
下载 Nagios Core 和 Nagios Plugins
# cd /tmp
# wget https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.3.4.tar.gz
# wget https://nagios-plugins.org/download/nagios-plugins-2.2.1.tar.gz
添加Nagios用户和组
# useradd nagios
# groupadd nagcmd
# usermod -a -G nagcmd nagios
# usermod -a -G nagios,nagcmd apache
安装 Nagios Core
解压安装包
# tar zxvf nagios-4.3.4.tar.gz
# tar zxvf nagios-plugins-2.2.1.tar.gz
转到Nagios Core安装目录
# cd nagios-4.3.4
# ./configure --with-command-group=nagcmd
# make all
# make install
# make install-init
# make install-config
# make install-commandmode
# make install-webconf
# cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/
# chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
新建 Web 访问用户
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
安装 Nagios Plugin
# cd /tmp/nagios-plugins-2.2.1
# ./configure --with-nagios-user=nagios --with-nagios-group=nagios
# make
# make install
设置 Nagios 开机启动服务
# chkconfig --add nagios
# chkconfig --level 35 nagios on
# systemctl enable httpd
# systemctl start nagios
# systemctl start httpd
配置防火墙
# firewall-cmd --permanent --add-service=http
# firewall-cmd --reload
访问 Nagios Web 界面
http:///nagios
使用htpasswd设置的用户名和密码登录。
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