Centos 6.4下網路監視工具(Nagios)郵件警示配置

系統：Centos 6.4

伺服器：hostname:Nagios-Server kernel:2.6.32-358.el6.x86_64 IP:1.1.1.26
用戶端：hostname:Nagios-Client kernel:2.6.32-358.el6.x86_64 IP:1.1.1.27

升級核心：

[root@Nagios-Server ~]# yum install ntpdate -y    #安裝ntpdate，時間同步
[root@Nagios-Server ~]# /usr/sbin/ntpdate time.nist.gov    #時間同步
[root@Nagios-Server ~]# yum install kernel kernel-devel gcc gcc-c++ wget vim -y    #升級核心
[root@Nagios-Client ~]# yum install ntpdate -y
[root@Nagios-Client ~]# /usr/sbin/ntpdate time.nist.gov
[root@Nagios-Client ~]# yum install kernel kernel-devel gcc gcc-c++ wget vim -y

升級後核心：

伺服器：2.6.32-504.1.3.el6.x86_64
用戶端：2.6.32-504.1.3.el6.x86_64

日誌分析：

一、服務

①check_users服務監控，第一次soft、第二次soft、第三次hard，在然後發送郵件

[1417348396] Warning: Return code of 255 for check of service 'check_users' on host '1.1.1.27' was out of bounds.
[1417348396] SERVICE ALERT: 1.1.1.27;check_users;CRITICAL;SOFT;1;(Return code of 255 is out of bounds)
[1417348456] Warning: Return code of 255 for check of service 'check_users' on host '1.1.1.27' was out of bounds.
[1417348456] SERVICE ALERT: 1.1.1.27;check_users;CRITICAL;SOFT;2;(Return code of 255 is out of bounds)
[1417348516] Warning: Return code of 255 for check of service 'check_users' on host '1.1.1.27' was out of bounds.
[1417348516] SERVICE ALERT: 1.1.1.27;check_users;CRITICAL;HARD;3;(Return code of 255 is out of bounds)
[1417348516] SERVICE NOTIFICATION: nagiosadmin;1.1.1.27;check_users;CRITICAL;notify-service-by-email;(Return code of 255 is out of bounds)
②：check_zombie_procs服務監控，第一次soft、第二次soft、第三次hard，在然後發送郵件

[1417348426] Warning: Return code of 255 for check of service 'check_zombie_procs' on host '1.1.1.27' was out of bounds.
[1417348426] SERVICE ALERT: 1.1.1.27;check_zombie_procs;CRITICAL;SOFT;1;(Return code of 255 is out of bounds)
[1417348486] Warning: Return code of 255 for check of service 'check_zombie_procs' on host '1.1.1.27' was out of bounds.
[1417348486] SERVICE ALERT: 1.1.1.27;check_zombie_procs;CRITICAL;SOFT;2;(Return code of 255 is out of bounds)
[1417348546] Warning: Return code of 255 for check of service 'check_zombie_procs' on host '1.1.1.27' was out of bounds.
[1417348546] SERVICE ALERT: 1.1.1.27;check_zombie_procs;CRITICAL;HARD;3;(Return code of 255 is out of bounds)
[1417348546] SERVICE NOTIFICATION: nagiosadmin;1.1.1.27;check_zombie_procs;CRITICAL;notify-service-by-email;(Return code of 255 is out of bounds)
③：check_total_procs服務監控，第一次soft、第二次soft、第三次hard，在然後發送郵件

[1417348436] Warning: Return code of 255 for check of service 'check_total_procs' on host '1.1.1.27' was out of bounds.
[1417348436] SERVICE ALERT: 1.1.1.27;check_total_procs;CRITICAL;SOFT;1;(Return code of 255 is out of bounds)
[1417348496] Warning: Return code of 255 for check of service 'check_total_procs' on host '1.1.1.27' was out of bounds.
[1417348496] SERVICE ALERT: 1.1.1.27;check_total_procs;CRITICAL;SOFT;2;(Return code of 255 is out of bounds)
[1417348556] Warning: Return code of 255 for check of service 'check_total_procs' on host '1.1.1.27' was out of bounds.
[1417348556] SERVICE ALERT: 1.1.1.27;check_total_procs;CRITICAL;HARD;3;(Return code of 255 is out of bounds)
[1417348556] SERVICE NOTIFICATION: nagiosadmin;1.1.1.27;check_total_procs;CRITICAL;notify-service-by-email;(Return code of 255 is out of bounds)
二、主機

[1417349046] HOST ALERT: 1.1.1.27;DOWN;SOFT;1;CRITICAL - Host Unreachable (1.1.1.27)
[1417349116] HOST ALERT: 1.1.1.27;DOWN;SOFT;2;CRITICAL - Host Unreachable (1.1.1.27)
[1417349186] HOST ALERT: 1.1.1.27;DOWN;HARD;3;CRITICAL - Host Unreachable (1.1.1.27)
[1417349186] HOST NOTIFICATION: nagiosadmin;1.1.1.27;DOWN;notify-host-by-email;CRITICAL - Host Unreachable (1.1.1.27)

配置：

①：配置警示郵箱

sed -i 's#email                           nagios@localhost#email                           byrd_monitor@163.com#g' /usr/local/nagios/etc/objects/contacts.cfg    #修改發送警示郵件地址

②：配置主機警示頻次（備忘：可以自訂，也可以修改修改/usr/local/nagios/etc/objects/templates.cfg）

define host{
        name                            linux-server    #linux模板通用名
        use                             generic-host    #繼承了通用主機模板的其他值
        check_period                    24x7            #檢查周期7*24小時
        check_interval                  2               #每隔2分鐘檢查一次
        retry_interval                  1               #異常後，1分鐘後重試
        max_check_attempts              3               #異常後，最大嘗試3次，然後警示
        check_command                   check-host-alive #檢查主機存活命令
        notification_period             24x7            #工作時間通知
        notification_interval           2               #異常後，通知間隔2分
        notification_options            d,u,r           #當主機down(關機)、unrealcable(不可達)、recovery(恢複)
        contact_groups                  admins          #通知發送Administrator 群組
        register                        0               #？？？
        }

③：佈建服務警示頻次

define service{
        name                            generic-service         #泛型服務模板名稱
        active_checks_enabled           1                       #服務檢查啟用
        passive_checks_enabled          1                       #被動檢查啟用
        parallelize_check               1                       #並行檢查開啟
        obsess_over_service             1                       #分布式監控使用，1啟用，0禁用
        check_freshness                 0                       #不檢查服務'freshness'
        notifications_enabled           1                       #服務通知啟用
        event_handler_enabled           1                       #啟用服務事件處理常式
        flap_detection_enabled          1                       #Flap detection is enabled
        failure_prediction_enabled      1                       #啟用故障預測
        process_perf_data               1                       #效能資料
        retain_status_information       1                       #保留重新啟動狀態資訊
        retain_nonstatus_information    1                       #保留非狀態資訊
        is_volatile                     0                       #The service is not volatile
        check_period                    24x7                    #7*24
        max_check_attempts              3                       #重新檢查服務3次，以確認是否真正的狀態
        normal_check_interval           1                       #正常情況下每個1分鐘檢查一次
        retry_check_interval            1                       #每隔1分鐘檢查一次服務，直到真正的狀態確定
        contact_groups                  admins                  #通知管理組
        notification_options            w,u,c,r                 #發送通知，當服務狀態為warning, unknown, critical, and recovery events
        notification_interval           2                       #60分鐘後重新通知狀態
        notification_period             24x7                    #7*24
         register                        0                      #？？？
        }