CentOS 6.4+Nagios+Msmtp+Mutt郵箱報警
環境：
Nagios Server Nagios 6.4
IP：192.168.0.58
Nagios Clint Nagios 6.4
IP：192.168.0.83
另注意：
Nagios需要PHP支援，安裝Apache+PHP步驟略....
=========================================================================================
——安裝Nagios
[[email protected] ~]# cd /Linux
[[email protected] Linux]# tar fzvx nagios-4.0.2.tar.gz
[[email protected] Linux]# cd nagios-4.0.2
[[email protected] nagios-4.0.2]# useradd -M -s /sbin/nologin nagios
[[email protected] nagios-4.0.2]# mkdir /usr/local/nagios
[[email protected] nagios-4.0.2]# chown -R nagios:nagios /usr/local/nagios/
[[email protected] nagios-4.0.2]# ./configure --prefix=/usr/local/nagios/
[[email protected] nagios-4.0.2]# make all
[[email protected] nagios-4.0.2]# make install
[[email protected] nagios-4.0.2]# make install-init
[[email protected] nagios-4.0.2]# make install-commandmode
[[email protected] nagios-4.0.2]# make install-config
[[email protected] nagios-4.0.2]# chkconfig --add nagios
[[email protected] nagios-4.0.2]# chkconfig --level 35 nagios on
[[email protected] nagios-4.0.2]# chkconfig --list nagios
nagios 0:關閉 1:關閉 2:關閉 3:啟用 4:關閉 5:啟用 6:關閉
[[email protected] nagios-4.0.2]# service nagios restart
=========================================================================================
——服務端安裝Nagios外掛plugins
[[email protected] Linux]# tar zfvx nagios-plugins-1.5.tar.gz
[[email protected] Linux]# cd nagios-plugins-1.5
[[email protected] nagios-plugins-1.5]# ./configure --prefix=/usr/local/nagios/
[[email protected] nagios-plugins-1.5]# make && make install
----------------------------------------------------------------------------
——服務端安裝nrpe
[[email protected] Linux]# tar zfvx nrpe-2.15.tar.gz
[[email protected] Linux]# cd nrpe-2.15
[[email protected] nrpe-2.15]# ./configure
[[email protected] nrpe-2.15]# make all
[[email protected] nrpe-2.15]# make install-plugin
=========================================================================================
——使apache支援nagios [這裡安裝apache的路徑為/usr/local/apache-2.4]
[[email protected] nagios-plugins-1.5]# vi /usr/local/apache-2.4/conf/httpd.conf
ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"
<Directory "/usr/local/nagios/sbin">
AuthType Basic
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthUserFile /usr/local/nagios/etc/htpasswd
Require valid-user
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
AuthType Basic
Options None
AllowOverride None
Order allow,deny
Allow from all
AuthName "nagios Access"
AuthUserFile /usr/local/nagios/etc/htpasswd
Require valid-user
</Directory>
=========================================================================================
——新增nagios登陸使用者
[[email protected] nagios-plugins-1.5]# /usr/local/apache-2.4/bin/htpasswd -c /usr/local/nagios/etc/htpasswd nagios
New password:
Re-type new password:
Adding password for user nagios
——修改apache的使用者和使用者組
[[email protected] nagios-plugins-1.5]# vi /usr/local/apache-2.4/conf/httpd.conf
User nagios
Group nagios
--------------------------------------------------------------------------
——解決Nagios亂碼問題
[[email protected] nagios-plugins-1.5]# vi /usr/local/apache-2.4/conf/httpd.conf
LoadModule cgid_module modules/mod_cgid.so
LoadModule actions_module modules/mod_actions.so
[[email protected] nagios-plugins-1.5]# service httpd restart
——測試訪問
=========================================================================================
——客戶端安裝nagios-plugins
[[email protected] ~]# cd /Linux
[[email protected] Linux]# useradd -M -s /sbin/nologin nagios
[[email protected] Linux]# tar zfvx nagios-plugins-1.5.tar.gz
[[email protected] Linux]# cd nagios-plugins-1.5
[[email protected] nagios-plugins-1.5]# ./configure --prefix=/usr/local/nagios/
[[email protected] nagios-plugins-1.5]# make && make install
——客戶端安裝nrpe
[[email protected] nagios-plugins-1.5]# cd ..
[[email protected] Linux]# tar zfvx nrpe-2.15.tar.gz
[[email protected] Linux]# cd nrpe-2.15
[[email protected] nrpe-2.15]# ./configure
[[email protected] nrpe-2.15]# make all
[[email protected] nrpe-2.15]# make install-plugin
[[email protected] nrpe-2.15]# make install-daemon
[[email protected] nrpe-2.15]# make install-daemon-config
[[email protected] nrpe-2.15]# vi /usr/local/nagios/etc/nrpe.cfg
allowed_hosts=127.0.0.1,192.168.0.58
-----------------------------------------------------------------------------------------
——啟動nrpe
[[email protected] nrpe-2.15]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
——檢查是否啟動
[[email protected] nrpe-2.15]# netstat -antup |grep 5666
tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 48456/nrpe
tcp 0 0 :::5666 :::* LISTEN 48456/nrpe
——開機啟動
[[email protected] nrpe-2.15]# vi /etc/rc.local
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
——在服務端檢查 [如果返回NRPE版本及成功，相反則檢查配置]
[[email protected] ~]# /usr/local/nagios/libexec/check_nrpe -H 192.168.0.83
NRPE v2.15
=========================================================================================
——配置nagios
[[email protected] nrpe-2.15]# cd /usr/local/nagios/etc/
[[email protected] etc]# vi nagios.cfg
註釋下面的內容
#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
#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
#cfg_file=/usr/local/nagios/etc/objects/windows.cfg
#cfg_file=/usr/local/nagios/etc/objects/switch.cfg
#新增監控主機目錄
cfg_dir=/usr/local/nagios/etc/objects/hosts
#新增模板目錄
cfg_dir=/usr/local/nagios/etc/objects/templates
[[email protected] etc]# mdkir objects/templates
[[email protected] etc]# mdkir objects/hosts
——複製所需檔案
[[email protected] etc]# cp objects/commands.cfg objects/templates/
[[email protected] etc]# cp objects/timeperiods.cfg objects/templates/
——建立自定義模板
[[email protected] etc]# vi objects/templates/templates.cfg
#聯絡人模板
define contact{
#聯絡人名稱
name tao
#當服務出現異常時 傳送通知的時間段
service_notification_period 24x7
#當主機出現異常時 傳送通知的時間段
host_notification_period 24x7
#w 表示警告 u 表示不明 c 表示緊急 r 表示恢復
service_notification_options w,u,c,r
#d 表示宕機 u 表示不可達 r 表示重新恢復
host_notification_options d,u,r
#服務故障時 傳送通知的方式[郵件]
service_notification_commands notify-service-by-email
#主機故障時 傳送通知的方式[郵件]
host_notification_commands notify-host-by-email
register 0
}
#主機模板
define host{
#定義主機名
name linux-host
#其值為1 Nagios將收集的資料寫入某個檔案中 以備提取
process_perf_data 1
passive_checks_enabled 0
#主機與服務的重新整理檢測 0為關閉
check_freshness 0
#事件處理開啟
event_handler_enabled 1
#開啟抖動感知
flap_detection_enabled 1
active_checks_enabled 1
#傳送通知的時間段
notification_period 24x7
#檢查主機的時間段
check_period 24x7
#對主機的檢查時間間隔/分鐘
check_interval 5
#如果宕機重試檢查時間/分鐘
retry_interval 1
#宕機後對主機的最大檢查次數
max_check_attempts 2
#檢查主機狀態指令[在commands.cfg中定義]
check_command check-host-alive
#在主機出現異常後 故障一直沒有解決 再次傳送通知的時間/分鐘
notification_interval 5
#d 表示宕機 u 表示不可達 r 表示重新恢復
notification_options d,u,r
#1為開啟報警資訊
notifications_enabled 0
#指定聯絡人組[在contacts.cfg中定義]
contact_groups admins
#處理效能資料
#一天重新整理檢測一次，以防止檢測結果不是實時的
freshness_threshold 86400
#0為不註冊，意思是這個作為模板
register 0
}
#服務模板
define service{
#定義一個服務名稱
name linux-service
#啟用主動服務檢查
active_checks_enabled 1
#啟用被動服務檢查
passive_checks_enabled 0
#主機與服務的重新整理檢測
check_freshness 0
#開啟報警資訊
notifications_enabled 1
#重新發送報警資訊的間隔
notification_interval 5
#事件處理開啟
event_handler_enabled 1
#啟用抖動感知
flap_detection_enabled 1
#處理效能資料
process_perf_data 1
#傳送通知的時間段
notification_period 24x7
#檢查時間段
check_period 24x7
#如果宕機最大檢查次數
max_check_attempts 5
#檢查服務時間間隔/分鐘
normal_check_interval 1
#如果宕機再次檢查的間隔時間/分鐘
retry_check_interval 1
#一天重新整理檢測一次，以防止檢測結果不是實時的
freshness_threshold 86400
#0為不註冊，意思是這個作為模板
register 0
}
define service {
name test
#1為開啟報警資訊
notifications_enabled 0
#重新發送報警資訊的間隔
notification_interval 5
notification_options w,u,c,
#事件處理開啟
event_handler_enabled 1
#開啟抖動感知
flap_detection_enabled 1
#傳送通知的時間段
notification_period 24x7
#檢查時間段
check_period 24x7
#每一次檢測的間隔時間
check_interval 1
#如果宕機再次檢查的間隔時間
retry_interval 1
#檢測次數,如果2次都是宕機的話 就報警
max_check_attempts 2
active_checks_enabled 1
passive_checks_enabled 0
#處理效能資料
process_perf_data 1
#主機與服務的重新整理檢測 0為關閉
check_freshness 0
#一天重新整理檢測一次，以防止檢測結果不是實時的
freshness_threshold 86400
#0為不註冊，意思是這個作為模板
register 0
}
[[email protected] etc]# vi objects/templates/contacts.cfg
#聯絡人
define contact{
#使用者名稱稱
contact_name nagios
#引用模板
use tao
#別名
alias Nagios Admin
#傳送郵箱
email [email protected]
}
#聯絡人組
define contactgroup{
#組名稱
contactgroup_name admins
#組別名
alias Nagios Administrators
#組使用者成員
members nagios
}
——新增監控主機
最好使用被監控機IP為名稱、比如:被監控伺服器為192.168.0.83 [後期伺服器多的時候、容易維護]
這裡為了省事、一臺伺服器監控多種服務。大家測試的時候、可以新增多個伺服器監控不同服務。
[[email protected] etc]# vi objects/hosts/192.168.0.83.cfg
#監控主機
define host {
host_name 192.168.0.83
address 192.168.0.83
use linux-host
}
#監控SSH
define service {
service_description check_ssh
check_command check_ssh!-p 22
host_name 192.168.0.83
use linux-service
register 1
}
#監控登陸使用者
define service {
service_description check_users
check_command check_nrpe!check_users
host_name 192.168.0.83
use linux-service
register 1
}
#監控mysql [需要在被監控配置、下面有配置說明]
define service {
service_description check_mysql
check_command check_mysql
host_name 192.168.0.83
use linux-service
register 1
}
#監控交換空間
define service {
service_description check_swap
check_command check_nrpe!check_swap
host_name 192.168.0.83
use linux-service
register 1
}
#監控磁碟
define service {
service_description check_disk
check_command check_nrpe!check_disk
host_name 192.168.0.83
use linux-service
register 1
}
#監控HTTP
define service {
service_description check_http
check_command check_http!-p 80
host_name 192.168.0.83
use linux-service
register 1
}
#監控負載
define service {
service_description check_load
check_command check_nrpe!check_load
host_name 192.168.0.83
use linux-service
register
}
=========================================================================================
——重啟啟動nagios、登陸WEB檢視
網上很多人說配置後，執行命令檢查是否有錯誤。個人感覺完全沒必要、因為啟動的時候Nagios預設會自動檢查配置、如果有錯誤Nagios會提示。
[[email protected] etc]# service nagios restart
——在客戶端 登陸nagios
=========================================================================================
注意：監控MySQL需要在被監控端配置如下
——客戶端連線mysql新增nagios使用者
mysql> create database nagios;
Query OK, 1 row affected (0.00 sec)
mysql> grant select on nagios.* to [email protected]'192.168.1.18' identified by 'nagios';
Query OK, 0 rows affected (0.11 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> quit
-----------------------------------------------------------------------------------------
——Nagios伺服器端新增mysql監控
[[email protected] nrpe-2.15]# vi /usr/local/nagios/etc/objects/templates/commands.cfg
# 'check_mysql' command definition
define command{
command_name check_mysql
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -u nagios -d nagios -p nagios
}
=========================================================================================
——安裝msmtp
[[email protected] Linux]# cd msmtp-1.4.31
[[email protected] msmtp-1.4.31]# ./configure --prefix=/usr/local/msmtp
[[email protected] msmtp-1.4.31]# make && make install
[[email protected] msmtp-1.4.31]# cd /usr/local/msmtp/
[[email protected] msmtp]# mkdir etc
[[email protected] msmtp]# cd etc/
——配置msmtp
[[email protected] etc]# vi msmtprc
account default
logfile /usr/local/msmtp/msmtp.log
host smtp.163.com #發件伺服器
from [email protected] #從那發郵件，和下面的郵箱是同一個
auth login
user [email protected] #發件郵箱
password xxxxxx #郵箱密碼
----------------------------------------------------------------------------