nagios server端 --（original）

 

 

#---config nagios server---#

 

添加nagios initV 腳本

chkconfig --add nagios

chkconfig --level 3 nagios on

 

測試nagios配置文件:

/fgn/theron/nagios/bin/nagios -v /fgn/theron/nagios/etc/nagios.cfg

 

配置nagios目錄屬組

chown -R nagios:nagcmd /fgn/theron/nagios/

 

啓動nagios

service nagios start

 

#---cfg files---#

objects（對象）是全部可監控和通知的要素。

下邊包含的配置文件主要包括

hosts.cfg 定義被監控主機

hostgroups.cfg 定義被監控主機組

 

services.cfg 定義服務

servicegroups.cfg 定義服務組

 

contacts.cfg 定義聯繫人

contactgroups.cfg 定義聯繫人組

 

timeperiods.cfg 定義時間期限-如24x7全天候的監測

commands.cfg 定義命令

services.cfg 定義被監控進程

 

servicedependency 定義服務依賴

serviceescalation 定義服務擴展

hostdependency 定義主機依賴

hostescalation 定義主機擴展

 

cp -af /fgn/theron/nagios/etc/   /fgn/theron/nagios/etc.bak/

touch /fgn/theron/nagios/etc/objects/contactgroups.cfg

touch /fgn/theron/nagios/etc/objects/services.cfg

touch /fgn/theron/nagios/etc/objects/servicegroups.cfg

touch /fgn/theron/nagios/etc/objects/hosts.cfg

touch /fgn/theron/nagios/etc/objects/hostgroups.cfg

vim /fgn/theron/nagios/etc/nagios.cfg

修改cfg file爲

cfg_file=/fgn/theron/nagios/etc/objects/contacts.cfg

cfg_file=/fgn/theron/nagios/etc/objects/contactgroups.cfg

cfg_file=/fgn/theron/nagios/etc/objects/services.cfg

cfg_file=/fgn/theron/nagios/etc/objects/servicegroups.cfg

cfg_file=/fgn/theron/nagios/etc/objects/commands.cfg

cfg_file=/fgn/theron/nagios/etc/objects/timeperiods.cfg

cfg_file=/fgn/theron/nagios/etc/objects/templates.cfg

cfg_file=/fgn/theron/nagios/etc/objects/hosts.cfg

cfg_file=/fgn/theron/nagios/etc/objects/hostgroups.cfg

cfg_file=/fgn/theron/nagios/etc/objects/localhost.cfg

 

 

新增hosts

cat << EOF >> /fgn/theron/nagios/etc/objects/hosts.cfg

define host{

host_name 192.168.1.205

alias 192.168.1.205

address 192.168.1.205

max_check_attempts 5

#check_interval 1

#retry_interval 1

check_period 24x7

contact_groups sa_groups

notification_interval 30

#first_notification_delay #

notification_period 24x7

notification_options d,u,r

}

EOF

 

cat << EOF >> /fgn/theron/nagios/etc/objects/hosts.cfg

define host{

host_name 192.168.1.4

alias 192.168.1.4

address 192.168.1.4

max_check_attempts 5

#check_interval 1

#retry_interval 1

check_period 24x7

contact_groups sa_groups

notification_interval 30

#first_notification_delay #

notification_period 24x7

notification_options d,u,r

}

EOF

 

 

新增hostgroups

cat << EOF >> /fgn/theron/nagios/etc/objects/hostgroups.cfg

define hostgroup{

hostgroup_name all_hosts

alias all_hosts

members 192.168.1.4,192.168.1.205

#notes note_string

#notes_url url

#action_url url

}

define hostgroup{

hostgroup_name http_hosts

alias http_hosts

members 192.168.1.4

#notes note_string

#notes_url url

#action_url url

}

EOF

 

 

 

新增contacts

cat << EOF >> /fgn/theron/nagios/etc/objects/contacts.cfg

define contact{

contact_name cheng

alias sa_cheng

host_notifications_enabled 1 [0/1]

service_notifications_enabled 1 [0/1]

host_notification_period 24x7

service_notification_period 24x7

host_notification_options d,u,r

service_notification_options w,u,c,r

host_notification_commands notify-service-by-email,notify-service-by-sms

service_notification_commands notify-host-by-email,notify-host-by-sms

email admin@chengyongxu.com

pager 13712345678

can_submit_commands 1 [0/1]

#retain_status_information [0/1]

#retain_nonstatus_information [0/1]

}

EOF

 

 

新增contactgroups

cat << EOF >> /fgn/theron/nagios/etc/objects/contactgroups.cfg

define contactgroup{

contactgroup_name sa_groups

alias sa_groups

members cheng

#contactgroup_members contactgroups

}

EOF

 

#下邊檢查調用的命令(check_command)，在命令配置文件中定義或在nrpe配置文件中要有定義

#最大重試次數(max_check_attempts)，通常設置爲3-4次比較好，這樣不會由於太敏感而發生誤報，一丟包就發短信太崩潰了吧

#檢查間隔(check_interval)和重試檢查間隔(retry_interval)的單位是分鐘，不一樣的檢查項目酌情修改

#通知間隔(notification_interval)指探測到故障之後，每隔多少分鐘發送一次報警信息。

#狀態級別：

#d=send notifications on a DOWN state宕

#w=send notifications on a WARNING state警告狀態

#c=send notifications on a CRITICAL state嚴重狀態、臨界狀態

#u=send notifications on an UNREACHABLE or UNKNOWN state找不到、不可達

#r=send notifications on recoveries (OK state)OK狀態

#f=send notifications when the host or service starts and stops flapping

#s=send notifications when scheduled downtime starts and ends

 

新增services

cat << EOF >> /fgn/theron/nagios/etc/objects/services.cfg

#monitor hosts

define service{

host_name 192.168.1.4

service_description check_ftp

check_command check_ftp

max_check_attempts 3

check_interval 10

retry_interval 5

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

EOF

 

#monitor all_hosts

define service{

hostgroup_name all_hosts

service_description check_host-alive

check_command check_ping

max_check_attempts 5

check_interval 3

retry_interval 1

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

define service{

hostgroup_name all_hosts

service_description check_df

check_command check_nrpe!check_df

max_check_attempts 4

check_interval 1440

retry_interval 5

check_period 24x7

notification_interval 1440

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

define service{

hostgroup_name all_hosts

service_description check_load

check_command check_nrpe!check_load

max_check_attempts 5

check_interval 5

retry_interval 5

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

define service{

hostgroup_name all_hosts

service_description check_zombie_procs

check_command check_nrpe!check_zombie_procs

max_check_attempts 5

check_interval 5

retry_interval 5

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

define service{

hostgroup_name all_hosts

service_description check_total_procs

check_command check_nrpe!check_total_procs

max_check_attempts 5

check_interval 5

retry_interval 5

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

define service{

hostgroup_name all_hosts

service_description check_ssh

check_command check_ssh

max_check_attempts 3

check_interval 60

retry_interval 5

check_period 24x7

notification_interval 60

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

 

#monitor http_hosts

define service{

hostgroup_name http_hosts

service_description check_http

check_command check_http

max_check_attempts 4

check_interval 3

retry_interval 1

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

EOF

 

 

 

新增servicesgroups

cat << EOF >> /fgn/theron/nagios/etc/objects/servicegroups.cfg

define servicegroup{

        servicegroup_name       Ping

        alias                   Ping

        members                 test1,check_http,test2,check_http,test3,check_http

}

EOF

 

 

 

新增 commands

cat << EOF >> /fgn/theron/nagios/etc/objects/commands.cfg

# 'check_nrpe' command definition

define command{

command_name check_nrpe

command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$

}

EOF

 

定義完nrpe command，下面報錯消失

[root@www nagios]# ./bin/nagios -v ./etc/nagios.cfg

 

Nagios Core 3.2.1

Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors

Copyright (c) 1999-2009 Ethan Galstad

Last Modified: 03-09-2010

License: GPL

 

Website: http://www.nagios.org

Reading configuration data...

   Read main config file okay...

Processing object config file '/fgn/theron/nagios/etc/objects/contacts.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/contactgroups.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/services.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/servicegroups.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/commands.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/timeperiods.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/templates.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/hosts.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/hostgroups.cfg'...

Processing object config file '/fgn/theron/nagios/etc/objects/localhost.cfg'...

   Read object config files okay...

 

Running pre-flight check on configuration data...

 

Checking services...

Error: Service check command 'check_nrpe' specified in service 'check_df' for host '192.168.1.205' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_load' for host '192.168.1.205' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_total_procs' for host '192.168.1.205' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_zombie_procs' for host '192.168.1.205' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_df' for host '192.168.1.4' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_load' for host '192.168.1.4' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_total_procs' for host '192.168.1.4' not defined anywhere!

Error: Service check command 'check_nrpe' specified in service 'check_zombie_procs' for host '192.168.1.4' not defined anywhere!

Checked 22 services.

Checking hosts...

Checked 3 hosts.

Checking host groups...

Checked 3 host groups.

Checking service groups...

Checked 0 service groups.

Checking contacts...

Error: Service notification command 'notify-host-by-sms' specified for contact 'cheng' is not defined anywhere!

Error: Host notification command 'notify-service-by-sms' specified for contact 'cheng' is not defined anywhere!

Checked 2 contacts.

Checking contact groups...

Checked 2 contact groups.

Checking service escalations...

Checked 0 service escalations.

Checking service dependencies...

Checked 0 service dependencies.

Checking host escalations...

Checked 0 host escalations.

Checking host dependencies...

Checked 0 host dependencies.

Checking commands...

Checked 24 commands.

Checking time periods...

Checked 5 time periods.

Checking for circular paths between hosts...

Checking for circular host and service dependencies...

Checking global event handlers...

Checking obsessive compulsive processor commands...

Checking misc settings...

 

Total Warnings: 0

Total Errors:   10

 

***> One or more problems was encountered while running the pre-flight check...

 

     Check your configuration file(s) to ensure that they contain valid

     directives and data defintions.  If you are upgrading from a previous

     version of Nagios, you should be aware that some variables/definitions

     may have been removed or modified in this version.  Make sure to read

     the HTML documentation regarding the config files, as well as the

     'Whats New' section to find out what has changed.

 

#---第一次新增主機---#

vim hosts.cfg

define host{

use   host-test-template

host_name test1

alias  test1

address 192.168.1.205

process_perf_data       1

}

相應新增要使用：

主機模板host-test-template

vim templates.cfg

define host{

name  host-test-template

contact_groups sa_groups

max_check_attempts 5

notification_interval 0

notification_period 24x7

notification_options d,u,r

check_command check-host-alive

}

新增聯繫組sa_groups

vim contactgroups.cfg

define contactgroup{

contactgroup_name sa_groups

alias sa_groups

members cheng

}

新增聯繫組成員：cheng

vim contacts.cfg

define contact{

contact_name cheng

alias sa_cheng

host_notifications_enabled 1 [0/1]

service_notifications_enabled 1 [0/1]

host_notification_period 24x7

service_notification_period 24x7

host_notification_options d,u,r

service_notification_options w,u,c,r

host_notification_commands notify-service-by-email

#,notify-service-by-sms

service_notification_commands notify-host-by-email

#,notify-host-by-sms

email admin@chengyongxu.com

pager 13712345678

can_submit_commands 1 [0/1]

#retain_status_information [0/1]

#retain_nonstatus_information [0/1]

}

新增命令：check-host-alive,notify-host-by-email,notify-service-by-email（默認就有,此步驟可省略）

vim commands.cfg

define command{

        command_name    check-host-alive

        command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5

        }

define command{

        command_name    notify-host-by-email

        command_line    /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$

        }

define command{

        command_name    notify-service-by-email

        command_line    /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$

        }

給全部nrpe客戶端使用:

define command{

         command_name check_nrpe

         command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -t 20

         }

#---之後新增主機---#

只需新增主機信息

vim hosts.cfg

define host{

use   host-test-template

host_name test1

alias  test1

address 192.168.1.205

process_perf_data       1

}

#---新增host group---#

define hostgroup{

hostgroup_name test_a_group

alias all_hosts

members test1,test2

#notes note_string

#notes_url url

#action_url url

}

相應新增service

vim services.cfg:

define service{

hostgroup_name test_a_group

service_description check-host-alive

check_command check_ping

max_check_attempts 5

check_interval 3

retry_interval 1

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

#contacts contacts(*)

contact_groups sa_groups

}

 

#---新增servicegroup---#

define servicegroup{

        servicegroup_name       Ping

        alias                   Ping

        members                 test1,check_http,test2,check_http,test3,check_http

}

 

#---新增腳本工具check_ips---#

相應新增service

define service{

hostgroup_name test_a_group,test_b_group,test_c_group

service_description check_ip_link

check_command check_nrpe!check_ips

max_check_attempts 5

check_interval 3s

retry_interval 1

check_period 24x7

notification_interval 30

notification_period 24x7

notification_options w,u,c

contact_groups sa_groups

}

相應配置nrpe客戶端:

command[check_ips]=/fgn/theron/nagios/libexec/ip_conn.sh