nagios整合cact實(shí)現(xiàn)網(wǎng)絡(luò)監(jiān)控報(bào)警的方法

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這篇文章主要介紹了nagios整合cact實(shí)現(xiàn)網(wǎng)絡(luò)監(jiān)控報(bào)警的方法，具有一定借鑒價(jià)值，需要的朋友可以參考下。如下資料是關(guān)于實(shí)現(xiàn)網(wǎng)絡(luò)監(jiān)控報(bào)警的詳細(xì)步驟內(nèi)容。

系統(tǒng)環(huán)境：rhel6.3

selinux and iptables disabled

整合cacti和nagios是利用了cacti的一個(gè)插件nagios for cacti，它的原理是將nagios的數(shù)據(jù)通過ndo2db導(dǎo)入到MySQL數(shù)據(jù)庫(kù)（cacti的庫(kù)中），然后cacti讀取數(shù)據(jù)庫(kù)信息將nagios的結(jié)果展示出來。

一、nagios監(jiān)控本地主機(jī)

localhost.cfg中主機(jī)與服務(wù)是在一塊的，為了便于管理，將主機(jī)與服務(wù)的配置信息分隔開。注釋掉localhost.cfg,新增加hosts.cfg,services.cfg文件:

[root@server34 etc]#vim /usr/local/nagios/etc/nagios.cfg

# You can specify individual object config files as shown below:

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/hosts.cfg

cfg_file=/usr/local/nagios/etc/objects/services.cfg

# Definitions for monitoring the local (Linux) host

#cfg_file=/usr/local/nagios/etc/objects/localhost.cfg

更改主機(jī)：

[root@server34 objects]# cp localhost.cfg hosts.cfg

[root@server34 objects]# vim hosts.cfg

define host{

use linux-server

host_name server34.example.com

alias Manager

address 192.168.0.34

icon_p_w_picpath server.gif

statusmap_p_w_picpath server.gd2

2d_coords500,200

3d_coords500,200,100

}

###############################################################################

# HOST GROUP DEFINITION

###############################################################################

# Define an optional hostgroup for Linux machines

define hostgroup{

hostgroup_name linux-servers ; The name of the hostgroup

alias Linux Servers ; Long name of the group

members * ; Comma separated list of hosts that belong to this group

}

[root@server34 objects]# cp localhost.cfg services.cfg

[root@server34 objects]# vim hosts.cfg

define host{

use linux-server

host_name server34.example.com

alias Manager

address 192.168.0.34

icon_p_w_picpath server.gif

statusmap_p_w_picpath server.gd2

2d_coords500,200

3d_coords500,200,100

}

###############################################################################

# HOST GROUP DEFINITION

###############################################################################

# Define an optional hostgroup for Linux machines

define hostgroup{

hostgroup_name linux-servers ; The name of the hostgroup

alias Linux Servers ; Long name of the group

members * ; Comma separated list of hosts that belong to this group

}

[root@server34 objects]# vim services.cfg

define servicegroup{

servicegroup_name 系統(tǒng)負(fù)荷檢查

alias 負(fù)荷檢查

members server34.example.com,進(jìn)程總數(shù),server34.example.com,登錄用戶數(shù),server34.example.com,根分區(qū),server34.example.com,交換空間利用率

}

define servicegroup{

servicegroup_name 全部聯(lián)通性檢查

alias 聯(lián)通性檢查

members server34.example.com,PING

}

###############################################################################

# SERVICE DEFINITIONS

###############################################################################

# Define a service to "ping" the local machine

define service{

use local-service ; Name of service template to use

host_name *

service_description PING

check_commandcheck_ping!100.0,20%!500.0,60%

}

# Define a service to check the disk space of the root partition

# on the local machine. Warning if < 20% free, critical if

# < 10% free space on partition.

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description 根分區(qū)

check_commandcheck_local_disk!20%!10%!/

}

# Define a service to check the number of currently logged in

# users on the local machine. Warning if > 20 users, critical

# if > 50 users.

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description 登錄用戶數(shù)

check_commandcheck_local_users!20!50

}

# Define a service to check the number of currently running procs

# on the local machine. Warning if > 250 processes, critical if

# > 400 users.

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description 進(jìn)程總數(shù)

check_commandcheck_local_procs!250!400!RSZDT

}

# Define a service to check the load on the local machine.

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description 系統(tǒng)負(fù)荷

check_commandcheck_local_load!5.0,4.0,3.0!10.0,6.0,4.0

}

# Define a service to check the swap usage the local machine.

# Critical if less than 10% of swap is free, warning if less than 20% is free

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description 交換空間利用率

check_commandcheck_local_swap!20!10

}

# Define a service to check SSH on the local machine.

# Disable notifications for this service by default, as not all users may have SSH enabled.

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description SSH

check_commandcheck_tcp!22!1.0!10.0

notifications_enabled0

}

# Define a service to check HTTP on the local machine.

# Disable notifications for this service by default, as not all users may have HTTP enabled.

define service{

use local-service ; Name of service template to use

host_name server34.example.com

service_description HTTP

check_commandcheck_http

notifications_enabled0

}

檢測(cè)nagios的配置文件

[root@server34 objects]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

[root@server34 objects]# /etc/init.d/nagios reload

http://192.168.0.34/nagios

點(diǎn)擊服務(wù)，看到以上配置的服務(wù)則證明配置成功

二、nagios監(jiān)控遠(yuǎn)程主機(jī)

1、監(jiān)控遠(yuǎn)程主機(jī)的網(wǎng)絡(luò)服務(wù)

監(jiān)控遠(yuǎn)程主機(jī)的網(wǎng)絡(luò)服務(wù)（如監(jiān)控mysql服務(wù)等）

監(jiān)控主機(jī)：192.168.0.34

遠(yuǎn)程主機(jī)（被監(jiān)控主機(jī)）：192.168.0.17

rhel6.4 selinux disabled and iptables

此處以監(jiān)控遠(yuǎn)程主機(jī)的mysql服務(wù)為例來說明nagios是如何監(jiān)控遠(yuǎn)程主機(jī)的網(wǎng)絡(luò)服務(wù)

安裝mysql

[root@server17 ~]# yum install mysql -y

啟動(dòng)mysql

創(chuàng)建nagios數(shù)據(jù)庫(kù)，并給nagios用戶授予在監(jiān)控主機(jī)上登錄nagios庫(kù)的權(quán)限。

mysql> create database nagios;

mysql> grant select on nagios.* to nagios@'192.168.0.34' identified by 'westos';

檢測(cè)能否采集到信息：

[root@server34 libexec]# ./check_mysql -H 192.168.0.17 -u nagios -p westos -d nagios

Uptime: 1648 Threads: 1 Questions: 15 Slow queries: 0 Opens: 15 Flush tables: 1 Open tables: 8 Queries per second avg: 0.9|Connections=8c;;; Open_files=16;;; Open_tables=8;;; Qcache_free_memory=0;;; Qcache_hits=0c;;; Qcache_inserts=0c;;; Qcache_lowmem_prunes=0c;;; Qcache_not_cached=0c;;; Qcache_queries_in_cache=0;;; Queries=15c;;; Questions=15c;;; Table_locks_waited=0c;;; Threads_connected=1;;; Threads_running=1;;; Uptime=1648c;;;

[root@server34 libexec]# pwd

/usr/local/nagios/libexec

添加檢測(cè)命令：

[root@server34 objects]# vim commands.cfg

# 'check_mysql' command definition

define command{

command_name check_mysql

command_line $USER1$/check_mysql -H $HOSTADDRESS$ -u $ARG1$ -p $ARG2$ -d $ARG3$

}

添加主機(jī)：

[root@server34 objects]# vim hosts.cfg

define host{

use linux-server

host_name server17.example.com

alias mysql

address 192.168.0.17

icon_p_w_picpath server.gif

statusmap_p_w_picpath server.gd2

2d_coords 600,300

3d_coords 600,300,100

}

添加服務(wù)：

[root@server34 objects]# vim services.cfg ###添加服務(wù)組

define servicegroup{

servicegroup_name 全部聯(lián)通性檢查

alias 聯(lián)通性檢查

members server34.example.com,PING,server17.example.com,PING

}

################################check_mysql#################################

define service{ ###添加服務(wù)

use local-service ; Name of service template to use

host_name server17.example.com

service_description check_mysql

check_command check_mysql!nagios!westos!nagios

}

驗(yàn)證配置文件更改是否正確：

[root@server34 objects]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

重新加載nagios：

[root@server34 objects]# /etc/init.d/nagios reload

檢測(cè)：http://192.168.0.34/nagios

點(diǎn)擊主機(jī)->出現(xiàn)server17.example.com

點(diǎn)擊服務(wù)->出現(xiàn)check_mysql服務(wù)

2、通過nrpe監(jiān)控遠(yuǎn)程主機(jī)的基本信息（如磁盤的使用情況等）

在被監(jiān)控主機(jī)上操作

下載nagios插件包、nrpe包

nagios-plugins-1.5.tar.gz， nrpe-2.15.tar.gz

[root@server17 ~]# tar zxf nagios-plugins-1.5.tar.gz

創(chuàng)建nagios用戶

[root@server17 ~]# useradd nagios

編譯安裝nagios-plugin

[root@server17 ~]# cd nagios-plugins-1.5

[root@server17 nagios-plugins-1.5]# ./configure --with-nagios-user=nagios --with-nagios-user=nagios

[root@server17 nagios-plugins-1.5]# make && make install

編譯安裝nrpe，nrpe是守護(hù)進(jìn)程，需安裝更改xinetd

[root@server17 nrpe-2.15]# yum install xinetd -y

[root@server17 nrpe-2.15]# vim /etc/xinetd.d/nrpe

only_from = 192.168.0.34

[root@server17 nrpe-2.15]# vim /etc/services

nrpe 5666/tcp

[root@server17 nrpe-2.15]# ./configure

[root@server17 nrpe-2.15]# make all

[root@server17 nrpe-2.15]# make install-plugin

[root@server17 nrpe-2.15]# make install-daemon

[root@server17 nrpe-2.15]# make install-daemon-config

[root@server17 nrpe-2.15]# make install-xinetd

[root@server17 nrpe-2.15]# /etc/init.d/xinetd start

配置nrpe

[root@server34 etc]# vim nrpe.cfg

command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10

command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20

command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1

command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z

command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200

[root@server17 ~]# /etc/init.d/xinetd start

##########################################

在監(jiān)控主機(jī)上

下載nrpe包：

nrpe-2.15.tar.gz

[root@server17 nrpe-2.15]# ./configure

[root@server17 nrpe-2.15]# make all

[root@server17 nrpe-2.15]# make install-plugin

[root@server17 nrpe-2.15]# make install-daemon

[root@server17 nrpe-2.15]# make install-daemon-config

安裝檢測(cè)：

[root@server34 libexec]# ./check_nrpe -H 192.168.0.17

NRPE v2.15

檢測(cè)磁盤使用情況：

[root@server34 libexec]# ./check_nrpe -H 192.168.0.17 -c check_disk

DISK OK - free space: / 14459 MB (85% inode=91%);| /=2540MB;14327;16118;0;17909

添加check_nrpe檢測(cè)命令

[root@server34 objects]# vim commands.cfg

# 'check_nrpe' command definition

define command{

command_name check_nrpe

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

}

[root@server34 objects]# vim services.cfg

define servicegroup{

servicegroup_name 系統(tǒng)負(fù)荷檢查

alias 負(fù)荷檢查

members server34.example.com,進(jìn)程總數(shù),server34.example.com,登錄用戶數(shù),server34.example.com,根分區(qū),server34.example.com,交換空間利用率

}

define servicegroup{

servicegroup_name 全部聯(lián)通性檢查

alias 聯(lián)通性檢查

members server34.example.com,PING,server17.example.com,PING

}

配置檢測(cè)：

[root@server34 objects]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

檢測(cè)：

http ://192.168.0.34/nagios

點(diǎn)擊服務(wù)，查看結(jié)果

三、整合nagios與微信、飛信

nagios與微信、飛信整合，使得nagios的監(jiān)控報(bào)警具有了錦上添花的效果。這樣，管理員不用經(jīng)常性的查看系統(tǒng)運(yùn)行是否正常，磁盤使用情況等等，有什么異常情況，微信、飛信會(huì)第一時(shí)間的通知你，可以達(dá)到7*24小時(shí)的監(jiān)控。你要做的就是手機(jī)保持暢通就ok了。既然這么好，那大家就跟隨我一塊愉快的感受下吧！

首先打開相關(guān)服務(wù)：

[root@server34 objects]# /etc/init.d/nagios start

[root@server34 objects]# /etc/init.d/httpd start

[root@server34 objects]# /etc/init.d/mysqld start

檢測(cè)nagios@server34.example.com是否能收發(fā)郵件

[root@server34 objects]# mail nagios@server34.example.com

切換到nagios用戶，查看到以下郵件時(shí)則成功

[root@server34 objects]# su - nagios

-bash-4.1$ mail

Heirloom Mail version 12.4 7/29/08. Type ? for help.

"/var/spool/mail/nagios": 1 message

> 1 root Sun Apr 27 09:54 20/642 "dsdssds"

一般自定義域名會(huì)被QQ郵箱當(dāng)作垃圾郵件處理，在QQ郵箱中設(shè)置白名單

-bash-4.1$ ping mail.qq.com //檢測(cè)網(wǎng)絡(luò)是否暢通

PING mail.qq.com (14.17.32.178) 56(84) bytes of data.

64 bytes from 14.17.32.178: icmp_seq=1 ttl=53 time=54.4 ms

64 bytes from 14.17.32.178: icmp_seq=2 ttl=53 time=1088 ms

添加郵箱：

[root@server34 objects]# vim contacts.cfg

email 281588847@qq.com

[root@server34 objects]# /etc/init.d/nagios reload

下載fetion，和飛信的庫(kù)文件linuxso_20101113.tar.gz

[root@server34 ~]# tar zxf linuxso_20101113.tar.gz -C /lib^C

[root@server34 ~]# cp fetion /usr/local/nagios/libexec/

給以下文件加可執(zhí)行權(quán)限

[root@server34 libexec]# chmod +x libACE*^C

[root@server34 libexec]# chmod +x libcrypto.so.4 libssl.so.4

[root@server34 libexec]# chmod nagios.nagios fetion

[root@server34 libexec]# su - nagios

根據(jù)提示的錯(cuò)誤依次安裝以下軟件包：

-bash-4.1$ /usr/local/nagios/libexec/fetion

-bash: /usr/local/nagios/libexec/fetion: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory

[root@server34 ~]# yum install /lib/ld-linux.so.2 libstdc++.so.6 libgssapi_krb5.so.2 libz.so.1 -y

-bash-4.1$ /usr/local/nagios/libexec/fetion --mobile=1870924**** --pwd=****** --to=187********,187******** --msg-utf8="hahahahhhhhhhhhhhaaaa"//第一次發(fā)送時(shí)會(huì)要求輸入校驗(yàn)碼，以后發(fā)送時(shí)則不需要

為了查看校驗(yàn)碼的內(nèi)容，將校驗(yàn)碼拷貝到物理主機(jī)的桌面上

[root@server34 libexec]# scp 18709242146.jpg 192.168.0.39:/root/Desktop

整合飛信與nagios

因發(fā)送的對(duì)象與內(nèi)容可能發(fā)生改變，故用腳本實(shí)現(xiàn)則更為方便，以下是實(shí)現(xiàn)該功能的腳本：

-bash-4.1$ vim fetion.sh

/usr/local/nagios/libexec/fetion --mobile=187******** --pwd=****** --to="$1" --msg-utf8="$2" &>/dev/null

給fetion.sh加可執(zhí)行權(quán)限

-bash-4.1$ chmod +x fetion.sh

測(cè)試：

-bash-4.1$ /usr/local/nagios/libexec/fetion.sh 1870924**** "westos linux"

-bash-4.1$ vim contacts.cfg

define contact{

contact_name nagiosadmin ; Short name of user

use generic-contact ; Inherit default values from generic-contact template (defined above)

alias Nagios Admin ; Full name of user

email 281588847@qq.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******

pager 1870924****

}

-bash-4.1$ vim commands.cfg

# 'notify-host-by-fetion' command definition

define command{

command_name notify-host-by-fetion

command_line $USER1$/fetion.sh $CONTACTPAGER$ " $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$"

}

# 'notify-service-by-FETION' command definition

define command{

command_name notify-service-by-fetion

command_line $USER1$/fetion.sh $CONTACTPAGER$ " $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$"

}

-bash-4.1$ vim templates.cfg

service_notification_commands notify-service-by-email,notify-service-by-fetion ; send service notifications via email

host_notification_commands notify-host-by-email,notify-host-by-fetion ; send host notifications via email

檢測(cè)配置文件

[root@server34 objects]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

測(cè)試：

[root@server17 ~]# /etc/init.d/mysqld stop

Stopping mysqld: [ OK ]

當(dāng)收到飛信報(bào)警信息時(shí)配置成功

看完這篇文章，你們學(xué)會(huì)nagios整合cact實(shí)現(xiàn)網(wǎng)絡(luò)監(jiān)控報(bào)警的方法了嗎？如果還想學(xué)到更多技能或想了解更多相關(guān)內(nèi)容，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道，感謝各位的閱讀。

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