nagios 安装配置(修正版)
nagios 安装配置安装 APACHE+PHP
最简单 直接yum
yum install httpd*
yum install php*
一：先安装Apache+PHP（省略），然后修改apache的配置文件：
主要修改apache配置文件httpd.conf
把下面的内容追加到httpd.conf文件的末尾：
Scriptalias /nagios/cgi-bin /usr/local/nagios/sbin
Authtype basic
Options execcgi
Allowoverride none
Order allow,deny
Allow from all
Authname "nagios access"
Authuserfile /usr/local/nagios/etc/nagios.password
Require valid-user
Alias /nagios /usr/local/nagios/share
Authtype basic
Options none
Allowoverride none
Order allow,deny
Allow from all
Authname "nagios access"
Authuserfile /usr/local/nagios/etc/nagios.password
Require valid-user
增加访问控制验证用户：（第一次创建时要加参数c）
#/usr/local/apache/bin/htpasswd -c /usr/local/nagios/etc/nagios.password nagiosadmin
输入密码：123456
如果你是rpm安装的apache 和php 就
#htpasswd -c /usr/local/nagios/etc/nagios.password nagiosadmin
这个可以不写，是怕前面不行才强行添加的：vim /usr/local/nagios/etc/nagios.password加入 nagiosadmin
创建用户维护Nagios的用户和组
#/usr/sbin/useradd nagios
#passwd nagios
#/usr/sbin/groupadd nagcmd
#/usr/sbin/usermod -a -G nagcmd nagios
安装Nagios和插件
安装Nagios
#tar zxvf nagios-3.2.1.tar.gz
#cd nagios-3.2.1
#./configure --prefix=/usr/local/nagios --with-command-group=nagcmd
#make all
#make install
#make install-init
#make install-config 安装的路径是/usr/local/nagios/etc
#make install-commandmode 配置目录权限
安装Nagios-plugins
#tar zxvf nagios-plugins-1.4.14.tar.gz
#cd nagios-plugins-1.4.14
#./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
#make && make install
编辑 /usr/local/nagios/etc/nagios.cfg
cfg_file=/usr/local/nagios/etc/objects/commands.cfg
cfg_file=/usr/local/nagios/etc/objects/contacts.cfg
cfg_file=/usr/local/nagios/etc/objects/timeperiods.cfg
cfg_file=/usr/local/nagios/etc/objects/templates.cfg
# Definitions for monitoring the local (Linux) host
#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg ---------这个注释掉，如果要监控本机就不注释)
cfg_file=/usr/local/nagios/etc/objects/hosts.cfg
cfg_file=/usr/local/nagios/etc/objects/hostgroups.cfg
cfg_file=/usr/local/nagios/etc/objects/contactgroups.cfg
cfg_file=/usr/local/nagios/etc/objects/services.cfg
#下面几个行可以不用理会。
check_external_commands=1
command_check_interval=10s
interval_length=60
normal_check_interval=10
max_check_attempts=3
retry_check_interval=1
#这样就实现在10分钟一次检测，重试3次，重试时间1分钟
修改cgi配置文件cgi.cfg.跟修改nagios.cfg一样，只贴出被修改之处：（这里也可以不用理会，默认就是这样）
#如有多个用户，中间用逗号隔开
authorized_for_system_information=nagiosadmin
authorized_for_configuration_information=nagiosadmin
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
在这里指定的用户”nagiosadmin”可以通过浏览器操纵nagios服务的关闭、重启等各种操作。
vim /usr/local/nagios/etc/object/hosts.cfg
define host {
host_name mysql1.dog.com 被监控IP 或 域名
alias mysql1 这个随便
address 10.1.1.4 被监控的IP罗
contact_groups doggroup 这个在contactgroups.cfg添加的
check_command check-host-alive
check_period 24x7
max_check_attempts 5 失败后重试次数
notification_interval 10 每隔多久提醒一次，我觉得这是分钟意思
notification_period 24x7
notification_options d,u,r 什么情况下提醒 d = down 机
}
几个值的意思是 d-down,u-unreacheable,r-recovery.
vim /usr/local/nagios/etc/objects/hostgroups.cfg
define hostgroup {
hostgroup_namemy-hosts
alias myhosts
members mysql1.dog.com 多台用逗号隔开******,注意，这个我直接用IP提示错误的。
}
vim /usr/local/nagios/etc/objects/contacts.cfg
shit +g 在最后加入
define contact {
contact_name userA
alias system administrator
service_notification_period 24x7
host_notification_period 24x7
service_notification_options w,u,c,r
host_notification_options d,u,r
service_notification_commandsnotify-service-by-email
host_notification_commands notify-host-by-email
email root@dog.com
}
define contact {
contact_name userB
alias system administrator
service_notification_period 24x7
host_notification_period 24x7
service_notification_options w,u,c,r
host_notification_options d,u,r
service_notification_commandsnotify-service-by-email
host_notification_commands notify-host-by-email
email alex@dog.com
}
出问题的话就发给上面那2个人userA和userB 注意，都不同的邮箱哦。
vim /usr/local/nagios/etc/objects/contactgroups.cfg
define contactgroup {
contactgroup_name doggroup
alias system administrator group
members userA,userB
}
这个很重要：
vim /usr/local/nagios/etc/objects/services.cfg
define service {
host_name mysql1.dog.com
service_description PING
check_period 24x7
notification_interval 3
normal_check_interval 1
max_check_attempts 3
retry_check_interval 1
check_command check_ping!100.0,20%!500.0,60%----------ping 监控
contact_groups doggroup
}
define service {
host_name mysql1.dog.com
max_check_attempts 5
check_period 24x7
notification_interval 10
normal_check_interval 1
retry_check_interval 1
service_description HTTP
check_command check_http ----就是监控apache
notification_period 24x7
notification_options w,u,c,r
contact_groups doggroup
}
好了。完工
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
这命令式检查你的配置有没有错的，当出现
Total Warnings: 0
Total Errors: 0
就表示没错了
重启nagios
service nagios stop
service nagios start
重启apache
下一篇：nagios利用NRPE监控CPU负载 磁盘 & mysql nginx 的一些方法
http://dogdogcom.blog.运维网.com/2402458/433155
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