nagios搭建

Nagios

开始安装

安装nagios-3.2.1.tar.gz到/usr/local/src

到/usr/local/src/nagios-3.2.1/html/docs用过以下命令找到帮助文档firefox index.html

1.确认为root身份

2.建立nagios用户 并设置密码 建立 nagcmd组 并且将该组设置为nagios apache用的附加组

nagcmd------> cgi文件

        /   \

    nagios  apache

useradd nagios
groupadd nagcmd

 useradd apache
usermod -a -G nagcmd,apache  nagios
usermod -a -G nagios  apache

3.到nagios解压目录进行安装

  ./configure --with-command-group=nagcmd

  make all  编译软件

  make install  安装软件

  make install-init  生成启动文件

  make install-config 生成配置文件

  make install-commandmode  设置组的执行权限

  make install-webconf  安装nagios的web文件到httpd的conf.d目录下

4.设置邮件联系人

/usr/local/nagios/etc/objects/contacts.cfg

email [e-mail]

5.vim /etc/httpd/conf.d/nagios.conf文件 必须设置用户nagiosadmin密码

该文件内scriptalias 针对cgi的别名

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

6.插件的安装

nagios-plugins-1.4.14.tar 解压缩 /usr/local/src下

./configure --with-nagios-user=nagios --with-nagios-group=nagios

make

make install

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

检测nagios的配置文件是否正常后 启动nagios

7.配置检测对象

cp localhost.cfg 192.168.1.196.cfg

define host{

        use                    linux-server    

        host_name          testserver

        alias                   host196

        address              192.168.1.196

        }

define service{

        use                             local-service 

        host_name                       testserver

        service_description             PING

        check_command                   check_ping!100.0,20%!500.0,60%

        }

define service{

        use                             local-service  

host_name                       testserver

        service_description             HTTP

        check_command                   check_http

#       notifications_enabled           0

        }

define service{

        use                             local-service

        host_name                       testserver

        service_description             NFS

        check_command                   check_tcp!2049

#       notifications_enabled           0

        }

将监控配置文件localhost.cfg加入到nagios.cfg文件中

cfg_file=/usr/local/nagios/etc/objects/192.168.1.196.cfg

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg检测新的配置文件是否正确

check_tcp 连接80端口判断http是否存活

check-http 取回主页判断http是否存活

check_load 系统平均负载

check_ping 主机是否存活

check_disk 判断磁盘空间

以下文件作用

cfg_file=/usr/local/nagios/etc/objects/commands.cfg 监测命令的设定

cfg_file=/usr/local/nagios/etc/objects/contacts.cfg     设置邮件发送人

cfg_file=/usr/local/nagios/etc/objects/timeperiods.cfg  监测时间的设定

cfg_file=/usr/local/nagios/etc/objects/templates.cfg 监测规则设定

service_notification_options    w,u,c,r,f,s

w:警告(warning)

u:未知(unkown)

c:严重(critical)

r:恢复(recover)

f:闪断(flapping)

s:计划内宕机(scheduled downtime events)

host_notification_options       d,u,r,f,s

d:宕机(down)

u:主机不能到达(unreachable)

r:恢复（recover）

f:闪断(flapping)

s:计划内宕机(scheduled downtime events)

$USER1$=/usr/local/nagios/libexec  $USER1$代表检测文件目录

/usr/local/nagios/etc/cgi.cfg文件

use_authentication=1 nagios验证 0取消 同时apache也要取消验证

authorized_for_configuration_information=nagiosadmin  nagios的管理员设定如要更改一下选项都需更改

authorized_for_system_commands=nagiosadmin

authorized_for_all_services=nagiosadmin

authorized_for_all_hosts=nagiosadmin

authorized_for_all_service_commands=nagiosadmin

authorized_for_all_host_commands=nagiosadmin

#authorized_for_read_only=user1,user2  如果需要其他用只能查询不能在页面设置可将该用户添加到这一选项并且加入到apache验证用户

重启服务即可

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