nagios是一款開源的企業級主機、服務應用程序和網絡監控程序,它可以有效的監控Windows、Unix / Linux / BSD,網絡和網絡設備,快速靈活、可靠穩定!小編這里給大家帶來最新nagios客戶端,附安裝配置教程,歡迎下載!
nagios功能特色
1、監控網絡服務(SMTP、POP3、HTTP、NNTP、PING等);
2、監控主機資源(處理器負荷、磁盤利用率等);
3、簡單地插件設計使得用戶可以方便地擴展自己服務的檢測方法;
4、并行服務檢查機制;
5、具備定義網絡分層結構的能力,用"parent"主機定義來表達網絡主機間的關系,這種關系可被用來發現和明晰主機宕機或不可達狀態;
6、當服務或主機問題產生與解決時將告警發送給聯系人(通過EMail、短信、用戶定義方式);
7、可以定義一些處理程序,使之能夠在服務或者主機發生故障時起到預防作用;
8、自動的日志滾動功能;
9、可以支持并實現對主機的冗余監控;
10、可選的WEB界面用于查看當前的網絡狀態、通知和故障歷史、日志文件等;
11、可以通過手機查看系統監控信息;
12、可指定自定義的事件處理控制器;
nagios客戶端安裝配置教程
(一)安裝Nagios (Nagios服務器為:192.168.6.6 Nagios客戶端為: 192.168.2.33)
1.基礎支持套件:gcc glibc glibc-common gd gd-devel xinetd openssl-devel httpd php 注:php和httpd均用源碼包安裝,安裝配置方法此處不在詳述
# yum install -y gcc glibc glibc-common gd gd-devel xinetd openssl-devel
2.創建Nagios賬戶和組
#useradd -m nagios
#groupadd nagcmd
#usermod -a -G nagcmd nagios
#usermod -a -G nagcmd apache
3.編譯安裝
#tar xvf nagios-4.1.1.tar.gz
#cd nagios-4.1.1
#./configure prefix=/usr/local/nagios --with-command-group=nagcmd --with-nagios-user=nagios --with-nagios-group=nagios
#make all
#make install
#make install-init (生成init啟動腳本)
#make install-config (生成一些模板配置文件)
#make install-commandmode (設置相應的權限)
#make install-webconf (生成Apache配置文件nagios.conf)
4.為Nagios設置Web驗證的密碼
#/usr/local/apache/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.user nagiosadmin
5.設置Nagios的開機啟動
chkconfig --add nagios
chkconfig nagios on
6.安裝Nagios的插件nagios-plugin
#tar zxvf nagios-plugins-1.4.16.tar.gz
#cd nagios-plugins-1.4.16
#./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios
--with-apt-get-command --with-ping6-command --with-ping-command --with-mysql
--with-gnutls --enable-extra-opts
#make
#make install
7.此時完成初步安裝,可以監控查看本機的一些服務,檢測配置文件并啟動nagios
#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
Nagios Core 4.1.1
Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-30-2013
License: GPL
. 配置apache并加載nagios登錄頁面
找到apache 的配置文件/usr/local/apache/conf/httpd.conf
找到:
User daemon
Group daemon 修改為
User nagios
Group nagios
為了安全起見,一般情況下要讓nagios 的web 監控頁面必須經過授權才能訪問,這需要增加驗證配置,即在httpd.conf 文件最后添加如下信息:
下面信息在編譯nagios(make install-webconf )時就已經生成,配置信息在:/etc/httpd/confd.d/nagios.conf 文件中
#######################################################################
#setting for nagios
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.user
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.user
Require valid-user
</Directory>
9.重啟nagios、apache并訪問nagios
#service nagios restart
#/usr/local/apache/bin/apachectl restart
http://192.168.6.6/nagions
提示輸入用戶名密碼,訪問成功
但是登陸進去后,nagios頁面右側全部亂碼
解決方法:
主要是apache沒有開啟cgi腳本的緣故
進入apache的主配置文件httpd.conf
#vim /usr/local/apache/conf/httpd.conf
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule actions_module modules/mod_actions.so
將上面2行的#去掉,重啟apache就OK
再次訪問 ,亂碼消失OK!
(二)配置Nagios
1.nagios配置目錄信息
# cd /usr/local/nagios/etc/
# ls
cgi.cfg htpasswd.user nagios.cfg objects resource.cfg
[root@localhost etc]# ll
total 68
-rw-rw-r-- 1 nagios nagios 11669 Nov 29 14:18 cgi.cfg (CGI配置文件)
-rw-r--r-- 1 root root 50 Nov 29 14:20 htpasswd.user (Apache的驗證密碼文件)
-rw-rw-r-- 1 nagios nagios 44710 Nov 29 14:18 nagios.cfg (主配置文件)
drwxrwxr-x 2 nagios nagios 4096 Nov 29 14:18 objects (對象定義文件目錄)
-rw-rw---- 1 nagios nagios 1340 Nov 29 14:18 resource.cfg (資源配置文件)
2.修改nagios.cfg主配置文件
#vim nagios.cfg
注釋掉:cfg_file=/usr/local/nagios/etc/objects/localhost.cfg ———— #cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
將 #cfg_dir=/usr/local/nagios/etc/servers 的 #(注釋)去掉 ----- cfg_dir=/usr/local/nagios/etc/servers
在/usr/local/nagios/etc/目錄中新建 servers子目錄,在里面可以直接添加主機配置文件
#mkdir servers
3.配置object目錄中的配置文件
#cd objects/
#ll
total 48
-rw-rw-r-- 1 nagios nagios 7716 Nov 29 14:18 commands.cfg (命令定義文件)
-rw-rw-r-- 1 nagios nagios 2166 Nov 29 14:18 contacts.cfg (聯系人信息定義文件)
-rw-rw-r-- 1 nagios nagios 5403 Nov 29 14:18 localhost.cfg
-rw-rw-r-- 1 nagios nagios 3124 Nov 29 14:18 printer.cfg
-rw-rw-r-- 1 nagios nagios 3293 Nov 29 14:18 switch.cfg
-rw-rw-r-- 1 nagios nagios 10812 Nov 29 14:18 templates.cfg
-rw-rw-r-- 1 nagios nagios 3208 Nov 29 14:18 timeperiods.cfg (時間周期定義文件)
-rw-rw-r-- 1 nagios nagios 4019 Nov 29 14:18 windows.cfg
配置聯系人信息(郵件接收者郵箱地址)
聯系人定義:
#vim contacts.cfg
將 email 字段后邊的 nagios@localhost 改成自己的郵箱,將報警信息發送的此郵箱,比如 15566058@139.com
如果是設置提醒多個郵箱可以在后跟其它郵箱地址,以逗號隔開,比如: 15566058@139.com,abc@163.com保存,退出。
nagios配置sendmail郵件告警
1、檢查commands.cfg
# 'notify-host-by-email' command definition
define command{
command_name notify-host-by-email
command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification
Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTA
DDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $
NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
}
# 'notify-service-by-email' command definition
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 $SERVICESTATE$ **" $CONTACTEMAIL$
}
這是正確的命令配置,其中最重要的就是/bin/mail后邊的命令配置
2、mqueue
[root@localhost mqueue]# pwd
/var/spool/mqueue
[root@localhost mqueue]# ll
total 8
-rw------- 1 root smmsp 8 Nov 18 20:54 dfmAICsFQj009878
-rw------- 1 root smmsp 901 Nov 18 21:56 qfmAICsFQj009878
[root@localhost mqueue]#
這個目錄存儲的是郵件發送隊列,如果這個里邊滿了不但會影響程序的運行,而且sendmail容易死掉,所以必要的時候要刪除。
3、修改access
[root@localhost mail]# pwd
/etc/mail
[root@localhost mail]# vi access
# Check the /usr/share/doc/sendmail/README.cf file for a description
# of the format of this file. (search for access_db in that file)
# The /usr/share/doc/sendmail/README.cf is part of the sendmail-doc
# package.
#
# by default we allow relaying from localhost...
Connect:localhost.localdomain RELAY
Connect:localhost RELAY
Connect:127.0.0.1 RELAY
Connect:192.168.0 RELAY
Connect:http://www.163.com RELAY
Connect:1.1.1 RELAY
Connect:nagios@localhost.localdomain RELAY
Connect:root@localhost RELAY
然后執行makemap hash access < access
或者是makemap -v hash /etc/mail/access.db < /etc/mail/access
4、[root@localhost spool]# pwd
/var/spool
chmod 777 mqueue
我的郵箱是163.com。
5、. 檢查所傳送的電子郵件是否送出,或滯留在郵件服務器中
語法:/usr/lib/sendmail -bp
若屏幕顯示為“Mail queue is empty” 的信息,表示mail 已送出。
6檢查郵件發送過程
在Sendmail郵件服務器上執行下面的命令.
# echo testing | /usr/sbin/sendmail -v someone@somedomain.com
7、sendmail日志
[root@localhost log]# pwd
/var/log
vi maillog就可以看了,出現任何錯誤都可以看到。
- PC官方版
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