nagios监控（三）
同理添加要监控的服务配置到service.cfg
vi service.cfg
define service {
use generic-service
host_name 197-etiantian-1-1
service_description Current Load
check_command check_nrpe!check_load
max_check_attempts 2
normal_check_interval 4
retry_check_interval 4
check_period 24x7
notification_interval 1440
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
process_perf_data 1
}
define service {
use generic-service
host_name 197-etiantian-1-1
service_description MEM Useage
check_command check_nrpe!check_mem
max_check_attempts 2
normal_check_interval 4
retry_check_interval 4
check_period 24x7
notification_interval 1440
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
process_perf_data 1
}
define service {
use generic-service
host_name 197-etiantian-1-1
service_description Swap Useage
check_command check_nrpe!check_swap
max_check_attempts 10
normal_check_interval 3
retry_check_interval 4
check_period 24x7
notification_interval 480
notification_period workhours
notification_options w,u,c,r
contact_groups admins
process_perf_data 1
}
define service {
use generic-service
host_name 197-etiantian-1-1
service_description Disk Partition
check_command check_nrpe!check_disk
max_check_attempts 8
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 360
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
process_perf_data 1
}
define service {
use generic-service
host_name 197-etiantian-1-1
service_description Disk Iostat
check_command check_nrpe!check_iostat!5!11
max_check_attempts 2
normal_check_interval 4
retry_check_interval 4
check_period 24x7
notification_interval 1440
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
process_perf_data 1
}
#注*:
1.以上service.cfg 中添加了对磁盘分区、Load、Mem、Swap、磁盘io 的监控
2.以上hots.cfg 及service 的内容的详细解释见附录八
若此时执行如下检查nagios 语法命令：
检查语法：
/etc/init.d/nagios checkconfig
会发现报错：
Checking services...
Error: Service check command 'check_nrpe' specified in service 'Swap Useage' for host '197-etiantian-1-1' not
defined anywhere!
省略若干。。
Total Warnings: 0
Total Errors: 5
根据错误提示，我们可以知道，是check_nrpe 插件没有定义导致。
#注意没有出现
Total Warnings: 0
Total Errors: 5
而是出现的
[root@linux objects]# /etc/init.d/nagios checkconfig
Running configuration check...
Nagios Core 3.2.0
……………………….
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config directory '/usr/local/nagios/etc/commands'...
Error: Could not open config directory '/usr/local/nagios/etc/commands' for reading.
………………………….
CONFIG ERROR! Check your Nagios configuration.
#配置文件没有改IP
需要在commands.cfg 中加入check_nrpe 的插件配置
#vi commands.cfg 进入后按shift+g 切到结尾加入下面内容。
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
此时重新执行检查语法命令：
检查语法：
/etc/init.d/nagios checkconfig
Total Warnings: 0
Total Errors: 0
注*:修改配置不需要restart
打开网页会出现
It appears as though you do not have permission to view information for any of theservices you requested...
解决方法
[root@nagiosserver objects]#cd /usr/local/nagios/etc
[root@nagiosserver objects]#vi cgi.cfg +119
#把在1.6 节建立的用户oldboy 加到后面，注意用逗号隔开。
#default_user_name=oldboy
authorized_for_system_information=nagiosadmin,oldboy
authorized_for_configuration_information=nagiosadmin,oldboy
authorized_for_system_commands=nagiosadmin,oldboy
authorized_for_all_services=nagiosadmin,oldboy
authorized_for_all_hosts=nagiosadmin,oldboy
authorized_for_all_service_commands=nagiosadmin,oldboy
authorized_for_all_host_commands=nagiosadmin,oldboy
记得reload nagios 命令为：/etc/init.d/nagios reload
增加从nagios 服务器端发起的监控：如url 地址，端口监控
1.添加要监控的服务配置到service.cfg
########check url
#check_weburl (http://blog.etiantian.org) 197-etiantian-1-1
define service{
use generic-service
host_name 197-etiantian-1-1
service_description blog_url
check_command check_weburl!-H blog.etiantian.org
max_check_attempts 3
normal_check_interval 2
retry_check_interval 1
check_period 24x7
notification_interval 30
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
}
#check_weburl(http://blog.etiantian.org/oldboy/) 197-etiantian-1-1
define service{
use generic-service
host_name 197-etiantian-1-1
service_description blog_oldboy_url
check_command check_weburl!-H blog.etiantian.org -u /oldboy/
max_check_attempts 3
normal_check_interval 2
retry_check_interval 1
check_period 24x7
notification_interval 30
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
}
#请注意看以上监控URL 的不同
# 如果你的机器没有blog.etiantian.org 的WEB 配置， 可以直接用我的博客的公网地址
http://blog.etiantian.org/oldboy/，这样下面就不需要本地解析了。
检查语法：
/etc/init.d/nagios checkconfig
会发现报错：
Checking services...
Error: Service check command 'check_weburl' specified in service 'blog_oldboy_url' for host '197-etiantian-1-1' not defined
anywhere!
Error: Service check command 'check_weburl' specified in service 'blog_url' for host '197-etiantian-1-1' not defined anywhere!
…省略若干…
Total Warnings: 0
Total Errors: 2
根据错误可以知道，是check_weburl 插件没有定义导致。
、需要在commands.cfg 中加入check_weburl 的插件配置
# 'check_weburl' command definition
define command{
command_name check_weburl
command_line $USER1$/check_http $ARG1$ -w 10 -c 30
}
注意还要添加本地监控的插件：
# 'check_mem' command definition
define command{
command_name check_mem
command_line $USER1$/check_mem -w $ARG1$ -c $ARG2$
}
# 'check_load' command definition
define command{
command_name check_load
command_line $USER1$/check_load -w $ARG1$ -c $ARG2$
#command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
# 'check_disk' command definition
define command{
command_name check_disk
command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}
注意：以上三个插件命令没加也是正常的，这点有空偶在细看看。
如果是测试，注意在nagios 服务器端的/etc/hosts 下加
192.168.1.106 blog.etiantian.org
192.168.1.107 www.etiantian.org
检查语法：
/etc/init.d/nagios checkconfig
Total Warnings: 0
Total Errors: 0
使配置文件生效命令/etc/init.d/nagios reload