系統(tǒng)版本

[root@localhost ~]# cat /etc/issue
CentOS release 6.9 (Final)

• Nagios主程序
  https://sourceforge.net/projects/nagios/files/nagios-4.x/nagios-4.3.2/
• nagios-plugins-1.4.13.tar.gz Nagios 的插件
  https://www.nagios.org/downloads/nagios-plugins/
• nrpe-2.12.tar.gz 代理檢測程序
  https://sourceforge.net/projects/nagios/files/nrpe-3.x/nrpe-3.2.0/

在此演示安裝版本為nagios-4.3.2，nagios-plugins-2.2.1，nrpe-3.2.0（未安裝）

一、nagios-4.3.2 安裝

1.安裝前的依賴檢查

[root@localhost ~]# yum install httpd php gcc glibc glibc-common gd gd-devel
[root@localhost ~]# useradd -m nagios 
[root@localhost ~]# groupadd nagcmd 
[root@localhost ~]# usermod -a -G nagcmd nagios 
[root@localhost ~]# usermod -a -G nagcmd apache

2.解壓

[root@localhost ~]# cd usr/local/src/
[root@localhost src]# tar xvf nagios-4.3.2.tar.gz
[root@localhost src]# cd nagios-4.3.2

3.安裝

[root@localhost nagios-4.3.2]# ./configure --prefix=/usr/local/nagios --with-command-group=nagcmd --with-nagios-user=nagios --with-nagios-group=Nagios

[root@localhost nagios-4.3.2]# make all 
[root@localhost nagios-4.3.2]# make install 
[root@localhost nagios-4.3.2]# make install-init （生成init啟動腳本） 
[root@localhost nagios-4.3.2]# make install-config （生成一些模板配置文件） 
[root@localhost nagios-4.3.2]# make install-commandmode （設(shè)置相應(yīng)的權(quán)限） 
[root@localhost nagios-4.3.2]# make install-webconf （生成Apache配置文件nagios.conf）

4.為Nagios設(shè)置Web驗證的密碼。（注意第一次添加用戶用-c選項，以后再添加千萬別在用這個選項了，會覆蓋以前的所有用戶的。）

[root@localhost nagios-4.3.2]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password: 
Re-type new password: 
Adding password for user nagiosadmin

5.設(shè)置nagios的開機(jī)啟動

[root@localhost nagios-4.3.2]# chkconfig --add nagios 
[root@localhost nagios-4.3.2]# chkconfig nagios on
[root@localhost nagios-4.3.2]# chkconfig httpd on

6.關(guān)閉SELinux

[root@localhost nagios-4.3.2]# vi /etc/sysconfig/selinux 

SELINUX=disabled 

二、安裝Nagios的插件nagios-plugin

[root@localhost src]# pwd
/usr/local/src
[root@localhost src]# tar xvf nagios-plugins-2.2.1.tar.gz
[root@localhost src]# cd nagios-plugins-2.2.1
[root@localhost nagios-plugins-2.2.1]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=Nagios
[root@localhost nagios-plugins-2.2.1]# make && make install

三、驗證Nagios的樣例配置文件

[root@localhost nagios-plugins-2.2.1]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

Nagios Core 4.3.2
Copyright (c) 2009-present Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 2017-05-09
License: GPL

Website: https://www.nagios.org
Reading configuration data...
   Read main config file okay...
   Read object config files okay...

Running pre-flight check on configuration data...

Checking objects...
    Checked 8 services.
    Checked 1 hosts.
    Checked 1 host groups.
    Checked 0 service groups.
    Checked 1 contacts.
    Checked 1 contact groups.
    Checked 24 commands.
    Checked 5 time periods.
    Checked 0 host escalations.
    Checked 0 service escalations.
Checking for circular paths...
    Checked 1 hosts
    Checked 0 service dependencies
    Checked 0 host dependencies
    Checked 5 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors:   0

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

如果沒有報錯，可以啟動Nagios服務(wù)

service nagios start

使用http://localhost/nagios/來訪問

ps：如果遇到問題?。。?！

如果遇到關(guān)于cgi什么權(quán)限問題！察看下/usr/local/nagios的屬主組權(quán)限，

包括里面的內(nèi)容，

尤其是/usr/local/nagios/etc/htpasswd.users這個文件的權(quán)限！都應(yīng)該是nagios:nagios

另外嘗試編輯

vi /usr/local/nagios/etc/cgi.cfg

把

use_authentication=1

修改為

use_authentication=0