nagios运用飞信实现短信报警监控服务器

     此平台是基于apache2.2.1+php5.3.0+nagios3.1.2+fetion2009等软件的组合搭建而出，这些软件的版本是现阶段最新的。本人经过一段时间的搭建与测试，各个功能都能够成功实现，现源于开源软件，本人却不敢独享，现把搭建与配置过程介绍如下：

一、服务器端的设置

1、下载需求软件：

nagios主程序：

http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.1.2.tar.gz

nagios插件程序：

http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.13.tar.gz

apache程序：

http://apache.freelamp.com/httpd/httpd-2.2.11.tar.gz

php程序：

http://cn.php.net/distributions/php-5.3.0.tar.gz

libACE程序：

http://www.it-adv.net/fetion/downng/library_linux.tar.gz

fetion机器人程序：

http://www.it-adv.net/fetion/downng/fetion20090406003-linux.tar.gz

2、软件的安装

(1) apache的安装

[root@localhost httpd-2.2.11]# ./configure --prefix=/usr/local/apache --enable-so
[root@localhost httpd-2.2.11]# make && make install容

(2) php的安装

[root@localhost php-5.2.10]# ./configure --prefix=/usr/local/php    \
>    --with-apxs2=/usr/local/apache/bin/apxs
[root@localhost php-5.2.10]# make && make install
[root@localhost php-5.2.10]# cp php.ini-dist /usr/local/lib/php.ini
[root@localhost php-5.2.10]# vi /usr/local/apache/conf/httpd.conf请

     为了配置文件的工整，在配置文件的相关地方加入如下配置：

LoadModule php5_module modules/libphp5.so （如果有，不用加）
AddType application/x-httpd-php .php .html
找到DirectoryIndex index.html
改为： DirectoryIndex index.php index.html
在最后加入nagios的访问目录：
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
</Directory>
Alias /nagios /usr/local/nagios/share
<Directory "/usr/local/nagios/share"> 
AuthType Basic 
Options None 
AllowOverride None 
Order allow,deny 
Allow from all
</Directory> 请输入内容

(3) nagios的安装

     为了支持Nagios安装完后status map,trend等完全显示，需要gd库的支持，首先看一下gd与gd-devel有没有安装

[root@localhost php-5.2.10]# rpm -qa|grep gd
gdb-6.5-37.el5
libgdiplus-1.2.5-1.el5.centos
gd-2.0.33-9.4.el5_1.1
gdbm-1.8.0-26.2.1
sysklogd-1.4.1-44.el5
libgdiplus-devel-1.2.5-1.el5.centos
gd-devel-2.0.33-9.4.el5_1.1

     如果没有，请拿出光盘安装上，或者用yum -y install gd*安装也可

[root@localhost nagios-3.1.2]# useradd nagios
[root@localhost nagios-3.1.2]#  ./configure --prefix=/usr/local/nagios \
> --with -gd-lib=/usr/lib --with-gd-inc=/usr/include --with-nagios-user=nagios \
> --with-nagios-group=nagios
[root@localhost nagios-3.1.2]# make all
[root@localhost nagios-3.1.2]# make install
[root@localhost nagios-3.1.2]# make install-init
[root@localhost nagios-3.1.2]# make install-commandmode
[root@localhost nagios-3.1.2]# make install-config

(4) nagios-plugin的安装

[root@localhost nagios-plugins-1.4.13]# ./configure --prefix=/usr/local/nagios
[root@localhost nagios-plugins-1.4.13]# make && make install

(5) 飞信机器人的安装

     在安装飞信之前需要在/usr/lib目录下加上libACE库文件，以便使飞信能够正常使用

[root@localhost src]# tar zxvf library_linux.tar.gz    
[root@localhost src]# mv libACE* libcrypto.so.0.9.8 libssl.so.0.9.8  /usr/lib

     好了，现在来正式安装飞信

[root@localhost src]# tar zxvf fetion20090406003-linux.tar.gz
[root@localhost src]# mv install /usr/local/fetion
[root@localhost src]# chmod -R 755 /usr/local/fetion
[root@localhost src]# chown -R nagios:nagios /usr/local/fetion

     测试飞信能否成功发送短信（发送对象需是自己飞信好友）：

[root@localhost src]# /usr/local/fetion/fetion --mobile=137*** --pwd=*** \
> --to=136*** --msg-utf8="test"

     如果136***能成功收到137***的短信就是正常的哟，如果不能成功看日志。

3、nagios的配置

     首先讲一下，我建有host(主机），hostgroup(主机组），contact（联系人），contactgroup(联系人组），分别讲一下它们的相关情况：

host包含：TH-02,VH-178,VH-132,MH-110,MH-13

hostgroup包含：TG(别名：testgroup) , VG(别名：virtualgroup),MG(别名：maintaingroup)；TG包括主机：TH-02，VG包括主机：VH-132，VH-178，MG包括主机：MH-110,MH-13

contact包含：WSP,HW,ZY

contactgroup包含：testers,virtualers,maintainers；testers包含用户：WSP，virtualers包含用户：WSP和HW,maintainers包含用户：ZY

     为了直观起见，请看下图，

 

     好了，有了大致模块以后，现在我们正式开始配置nagios吧

(1) host的编辑与添加

     为了灵活使用，我们直接进入/usr/local/nagios/etc/objects目录下面，

[root@localhost src]# cd /usr/local/nagios/etc/objects/

[root@localhost objects]# vi hosts.cfg

##########################################################################
### Define whole host for all the machines


# Define testgroup host for the testers machine

define host{
                host_name                             TH-02
                alias                                   testhost02
                max_check_attempts                 5
                contact_groups                    testers
                address                             60.191.*.*
                }


# Define virtualgroup host for the virtualers machine

define host{
  host_name    VH-178
  alias      Virutalhost178
  max_check_attempts     5    
  contact_groups    virtualers
  address      *.*.*.178
  }

define host{
  host_name    VH-132
  alias      Virtualhost132
  max_check_attempts  5
  contact_groups    virtualers
  address      *.*.*.132
  }

# Define maintaingroup host for the maintainers machine

define host{
  host_name    MH-110
  alias      maintainhost110
  max_check_attempts  5
  contact_groups    maintainers
  address      *.*.*.110
  }

define host{
  host_name    MH-13
  alias      maintainhost13
  max_check_attempts  5
  contact_groups    maintainers
  address      *.*.*.13
  }


##############################################################################
### Define all hostgroup for the whole machine


# Define testgroup

define hostgroup{
                hostgroup_name         TG
                alias                     testgroup
                members                 TH-02
                }

# Define virtualgroup

define hostgroup{
  hostgroup_name  VG
  alias    virtualgroup
  members    VH-178,VH-132
  }

# Define maintaingroup

define hostgroup{
  hostgroup_name  MG
  alias    maintaingroup
  members    MH-110,MH-13
  }

#############################################################################
### SERVICE DEFINITIONS


# Define a service to "ping" the whole machine

define service{
                host_name            TH-02,VH-178,VH-132,MH-110
                service_description             PING
                is_volatile                             0    
                check_period                         24x7
                max_check_attempts                 1    
                normal_check_interval             1    
                retry_check_interval                 1    
                notification_options                 w,u,c,r    
                notification_interval             1    
                notification_period                 24x7    
                check_command   check_ping!100.0,20%!500.0,60%

                   }

# Define a service to "HTTP" the whole machine

define service{
                host_name         H-02,VH-178,VH-132,MH-13,MH-110

                  service_description             HTTP
                is_volatile                             0
                check_period                         24x7
                max_check_attempts                 1
                normal_check_interval             1
                retry_check_interval                 1
                notification_options                 w,u,c,r
                notification_interval             1
                notification_period                 24x7
                check_command                   check_http
                notifications_enabled                0
                }

     service 可以根据自己的需要加的，我这里只对HTTP与PING来作阐述的。

(2) contacts.cfg的编辑

###############################################################################
# CONTACTS.CFG - SAMPLE CONTACT/CONTACTGROUP DEFINITIONS
#
# Last Modified: 05-31-2007
#
# NOTES: This config file provides you with some example contact and contact
#                group definitions that you can reference in host and service
#                definitions.
#                
#                You don't need to keep these definitions in a separate file from your
#                other object definitions.    This has been done just to make things
#                easier to understand.
#
###############################################################################



###############################################################################
###############################################################################
#
# CONTACTS
#
###############################################################################
###############################################################################
### Define contact information for all the contacter


# Define contact information for WSP

define contact{
                contact_name         WSP
                use                generic-contact    
                alias                  WY-wsp
                service_notification_commands    notify-service-by-email,service-notify-by-fei
                host_notification_commands        notify-host-by-email,host-notify-by-fei
                email                                         [email protected]
                pager                                          150***
                }

# Define contact information for HW

define contact{
                contact_name           HW
                use                generic-contact    
                alias                    WY-hw
                service_notification_commands   notify-service-by-email,service-notify-by-fei
                host_notification_commands      notify-host-by-email,host-notify-by-fei
                email                                         [email protected]
                pager                                           135***
                }

# Define contact information for ZY

define contact{
                contact_name                 ZY
                 use                     generic-contact    
                alias                           WY-zy
                service_notification_commands   notify-service-by-email,service-notify-by-fei
                host_notification_commands       notify-host-by-email,host-notify-by-fei
                email                                         [email protected]
                pager                                           150***
                }


###############################################################################
###############################################################################
#
# CONTACT GROUPS
#
###############################################################################
###############################################################################
### Define contact group for all ther whole contacter

# Define testers contact group

define contactgroup{
                contactgroup_name              testers
                alias                            testhost contacters
                members                             WSP
                }

# Define virtualers contact group

define contactgroup{
                contactgroup_name             virtualers
                alias                            virtualhost contacters
                members                            WSP,HW
                }


# Define maintainers contact group

define contactgroup{
                contactgroup_name             maintainers
                alias                            maintainhost contacters
                members                                ZY
                }

(3) commands.cfg的编辑

     为了支持飞信发短信的功能需要在此文件中添加飞信命令，以促使信息的发送，代码如下：

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

define command {
             command_name            host-notify-by-fei ;
             command_line            /usr/local/fetion/fetion --mobile=137*** --pwd=*** --to=$CONTACTPAGER$ --msg-utf8="Host $HOSTSTATE$ alert for $HOSTNAME$! on '$LONGDATETIME$'" $CONTACTPAGER$
             }

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

define command {
             command_name         service-notify-by-fei
             command_line         /usr/local/fetion/fetion --mobile=137*** --pwd=*** --to=$CONTACTPAGER$ --msg-utf8="$HOSTADDRESS$ $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ on $LONGDATETIME$" $CONTACTPAGER$
             }

(4) 编辑nagios.cfg

为了不监控本机，现把localhost注释掉，找到此行，并且加以注释：
# cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
为了使刚才编辑的文件生效，需加入一行：
cfg_file=/usr/local/nagios/etc/objects/hosts.cfg

(5) 编辑cgi.cfg

     为了保证权限能正常访问nagios的web页面，需把这些行的值改掉：

authorized_for_system_information=*
authorized_for_configuration_information=*
authorized_for_system_commands=nagios
authorized_for_all_services=*
authorized_for_all_hosts=*
authorized_for_all_service_commands=*
authorized_for_all_host_commands=*
*号在此表示所有用户，也可以改成相关用户，不过必须逐一添加。

     服务器端的配置基本上大致如此了。

4、启动nagios与apache服务

(1) nagios自启动

[root@localhost objects]# service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
[root@localhost objects]# chkconfig nagios on
[root@localhost objects]# chkconfig --list|grep nagios
nagios     0:关闭   1:关闭   2:启用   3:启用   4:启用   5:启用   6:关闭

(2) apache的启动

[root@localhost ~]# export PATH=$PATH:/usr/local/apache/bin
[root@localhost ~]# apachectl -k start
httpd (pid 3108) already running

注：为了让apache可以自启动，可以加入到/etc/rc.local之中。

 

5、测试与浏览

     在启动nagios服务之前，我们可以先测试一下是否配置有没有错误，或者你启动的时候出现错误也可以用下述命令进行测试

[root@localhost ~]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg    
Nagios 3.1.2
Copyright (c) 2009 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 06-23-2009
License: GPL
Website: http://www.nagios.org
Reading configuration data...
     Read main config file okay...
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/hosts.cfg'...
     Read object config files okay...
Running pre-flight check on configuration data...
Checking services...
                Checked 9 services.
Checking hosts...
                Checked 5 hosts.
Checking host groups...
                Checked 3 host groups.
Checking service groups...
                Checked 0 service groups.
Checking contacts...
                Checked 3 contacts.
Checking contact groups...
                Checked 3 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 26 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:     0

     呵呵，没有错误，可能您在配置之前或多或少会出现问题的，根据相关错误提示，逐一排查，相信您定会成功的。

     现在我们打开nagios的web页面，输入： http://***.com/nagios样例

     先看map页面，大致页面如下

 

     再看hosts相关链接页面：

    

     最后，我们再看一下hostgroups页面：

 

二、客户端的配置：

1、需求软件的下载：

nagios插件程序：

http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.13.tar.gz

nrpe软件：

http://prdownloads.sourceforge.net/sourceforge/nagios/nrpe-2.12.tar.gz

2、软件的安装

(1) nagios插件的安装：

     首先在安装前建立nagios用户，命令如下：

[root@yibaner src]# useradd nagios -s /sbin/nologin -M
[root@yibaner src]# tar zxvf nagios-plugins-1.4.13.tar.gz
[root@yibaner src]# cd nagios-plugins-1.4.13
[root@yibaner nagios-plugins-1.4.13]# ./configure --prefix=/usr/local/nagios
[root@yibaner nagios-plugins-1.4.13]# make && make install
[root@yibaner nagios-plugins-1.4.13]# chown -R nagios.nagios /usr/local/nagios/

(2) nrpe的程序的安装：

[root@yibaner src]# tar zxvf nrpe-2.12.tar.gz
[root@yibaner nrpe-2.12]# cd nrpe-2.12
[root@yibaner nrpe-2.12]# ./configure
[root@yibaner nrpe-2.12]# make all
[root@yibaner nrpe-2.12]# make install-plugin
[root@yibaner nrpe-2.12]# make install-daemon
[root@yibaner nrpe-2.12]# make install-daemon-config

(3) 修改nrpe.cfg配置文件：

[root@yibaner nrpe-2.12]# vi /usr/local/nagios/etc/nrpe.cfg
将server_address的值修改为本机的IP地址：
server_address=*.*.*.110
将allowed_hosts的值修改为远程监控服务器的IP地址：
allowed_hosts=*.*.*.27

(4) 运行nrpe服务：

[root@yibaner nrpe-2.12]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

(5) 查看nrpe运行情况：

[root@yibaner nrpe-2.12]# netstat -nap | grep nrpe
tcp   0    0    *.*.*.110:5666    0.0.0.0:*   LISTEN     3538/nrpe    
从上述情况来看，nrpe成功运行，并且占用了5666端口

(6) 设置nrpe自启动：

[root@yibaner nrpe-2.12]#vi /etc/rc.local
在其中加中此行：
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

(7) 在监控服务器端测试被监控服务器是否正常运行

[root@localhost src]# telnet *.*.*.110 5666

     测试如果一切正常，整个配置过程全部告一段落，只需到监控服务器中设置对被监控服务器的所需服务的监控即可。

 

     这样一来，整个nagios的配置全部告一段落了，把被监控服务器的某个服务暂时停用一下，马上就会收到飞信的短消息了，一切表明，配置成功了。