Nagios使用NSClient++监控远程Windows主机
下载NSClient++-Win32-0.3.8.msi并安装。
http://files.nsclient.org/x-0.3.x/NSClient++-0.3.8-Win32.msi
到安装目录打开NSC.ini文件进行修改：
在[modules]模块，将除CheckWMI.dll和RemoteConfiguration.dll外的所有dll文件明前的注释（;)去掉。
在[Settings]模块可以设置一个连接密码password=PWD，为了简单，在此不设密码。设置allowed_hosts=127.0.0.1/32,192.168.0.19，可以连接的监控服务器的地址，如果写成192.168.0.0/24则表示该子网内的所有机器都可以访问；如果这个地方是空白则表示所有的主机都可以连接上来（注意在[NSClient]有allowed_hosts的同样设置，不要设置错了），最后不要忘记去掉前面的注释符（;）。
运行nsclient＋＋
NSClient++ /install
NSClient++ SysTray install
NSClient++ /start
如果有防火墙，请开放相应端口。
创建监控配置文件，使用check_nt命令监控windows系统信息（此命令默认已定义）。
Ｗindows监控示例配置文件：
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[root@tech etc]# cat /usr/local/nagios/etc/servers/print-w-80.cfg
###############################################################################
# WINDOWS.CFG - SAMPLE CONFIG FILE FOR MONITORING A WINDOWS MACHINE
#
# Last Modified: 06-13-2007
#
# NOTES: This config file assumes that you are using the sample configuration
# files that get installed with the Nagios quickstart guide.
#
###############################################################################
###############################################################################
###############################################################################
#
# HOST DEFINITIONS
#
###############################################################################
###############################################################################
# Define a host for the Windows machine we'll be monitoring
# Change the host_name, alias, and address to fit your situation
define host{
use windows-server ; Inherit default values from a template
host_name print80 ; The name we're giving to this host
alias Print80 ; A longer name associated with the host
address 192.168.0.80 ; IP address of the host
}
###############################################################################
###############################################################################
#
# HOST GROUP DEFINITIONS
# 主机组在/usr/local/nagios/etc/servers/hostgroup.cfg中单独配置
###############################################################################
###############################################################################
# Define a hostgroup for Windows machines
# All hosts that use the windows-server template will automatically be a member of this group
#define hostgroup{
# hostgroup_name windows-servers ; The name of the hostgroup
# alias Windows Servers ; Long name of the group
# }
###############################################################################
###############################################################################
#
# SERVICE DEFINITIONS
#
###############################################################################
###############################################################################
# Create a service for monitoring the version of NSCLient++ that is installed
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description NSClient++ Version
check_command check_nt!CLIENTVERSION
}
# Create a service for monitoring the uptime of the server
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description Uptime
check_command check_nt!UPTIME
}
# Create a service for monitoring CPU load
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description CPU Load
check_command check_nt!CPULOAD!-l 5,80,90
}
# Create a service for monitoring
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description Memory Usage
check_command check_nt!MEMUSE!-w 80 -c 90
}
# Create a service for monitoring C:\ disk usage
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description C_Drive_Space
check_command check_nt!USEDDISKSPACE!-l c -w 80 -c 90
}
# Create a service for monitoring the W3SVC service
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description W3SVC
check_command check_nt!SERVICESTATE!-d SHOWALL -l W3SVC
}
# Create a service for monitoring the Explorer.exe process
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description Explorer
check_command check_nt!PROCSTATE!-d SHOWALL -l Explorer.exe
}
＃主机组配置文件
[root@tech etc]# cat /usr/local/nagios/etc/servers/hostgroup.cfg
define hostgroup{
hostgroup_name linux-servers ; The name of the hostgroup
alias Linux Servers ; Long name of the group
members localhost,wiki ; Comma separated list of hosts that belong to this group
}
define hostgroup{
hostgroup_name windows-servers ; The name of the hostgroup
alias Windows Servers ; Long name of the group
members print80 ; Comma separated list of hosts that belong to this group
}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
到安装目录打开NSC.ini文件进行修改：
在[modules]模块，将除CheckWMI.dll和RemoteConfiguration.dll外的所有dll文件明前的注释（;)去掉。
在[Settings]模块可以设置一个连接密码password=PWD，为了简单，在此不设密码。设置allowed_hosts=127.0.0.1/32,192.168.0.19，可以连接的监控服务器的地址，如果写成192.168.0.0/24则表示该子网内的所有机器都可以访问；如果这个地方是空白则表示所有的主机都可以连接上来（注意在[NSClient]有allowed_hosts的同样设置，不要设置错了），最后不要忘记去掉前面的注释符（;）。
运行nsclient＋＋
NSClient++ /install
NSClient++ SysTray install
NSClient++ /start
如果有防火墙，请开放相应端口。
创建监控配置文件，使用check_nt命令监控windows系统信息（此命令默认已定义）。
Ｗindows监控示例配置文件：
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[root@tech etc]# cat /usr/local/nagios/etc/servers/print-w-80.cfg
###############################################################################
# WINDOWS.CFG - SAMPLE CONFIG FILE FOR MONITORING A WINDOWS MACHINE
#
# Last Modified: 06-13-2007
#
# NOTES: This config file assumes that you are using the sample configuration
# files that get installed with the Nagios quickstart guide.
#
###############################################################################
###############################################################################
###############################################################################
#
# HOST DEFINITIONS
#
###############################################################################
###############################################################################
# Define a host for the Windows machine we'll be monitoring
# Change the host_name, alias, and address to fit your situation
define host{
use windows-server ; Inherit default values from a template
host_name print80 ; The name we're giving to this host
alias Print80 ; A longer name associated with the host
address 192.168.0.80 ; IP address of the host
}
###############################################################################
###############################################################################
#
# HOST GROUP DEFINITIONS
# 主机组在/usr/local/nagios/etc/servers/hostgroup.cfg中单独配置
###############################################################################
###############################################################################
# Define a hostgroup for Windows machines
# All hosts that use the windows-server template will automatically be a member of this group
#define hostgroup{
# hostgroup_name windows-servers ; The name of the hostgroup
# alias Windows Servers ; Long name of the group
# }
###############################################################################
###############################################################################
#
# SERVICE DEFINITIONS
#
###############################################################################
###############################################################################
# Create a service for monitoring the version of NSCLient++ that is installed
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description NSClient++ Version
check_command check_nt!CLIENTVERSION
}
# Create a service for monitoring the uptime of the server
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description Uptime
check_command check_nt!UPTIME
}
# Create a service for monitoring CPU load
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description CPU Load
check_command check_nt!CPULOAD!-l 5,80,90
}
# Create a service for monitoring
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description Memory Usage
check_command check_nt!MEMUSE!-w 80 -c 90
}
# Create a service for monitoring C:\ disk usage
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description C_Drive_Space
check_command check_nt!USEDDISKSPACE!-l c -w 80 -c 90
}
# Create a service for monitoring the W3SVC service
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description W3SVC
check_command check_nt!SERVICESTATE!-d SHOWALL -l W3SVC
}
# Create a service for monitoring the Explorer.exe process
# Change the host_name to match the name of the host you defined above
define service{
use generic-service
host_name print80
service_description Explorer
check_command check_nt!PROCSTATE!-d SHOWALL -l Explorer.exe
}
＃主机组配置文件
[root@tech etc]# cat /usr/local/nagios/etc/servers/hostgroup.cfg
define hostgroup{
hostgroup_name linux-servers ; The name of the hostgroup
alias Linux Servers ; Long name of the group
members localhost,wiki ; Comma separated list of hosts that belong to this group
}
define hostgroup{
hostgroup_name windows-servers ; The name of the hostgroup
alias Windows Servers ; Long name of the group
members print80 ; Comma separated list of hosts that belong to this group
}
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
＃ 完成监控主机配置文件的配置后使用下面命令检查配置文件的正确性：
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
＃ 确定无误后重启Nagios：
service nagios restart
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
＃ 确定无误后重启Nagios：
service nagios restart
===============================================================================
使用nagios监控网页
在server文件夹里加入webpages.cfg并设置好用户权限
Vim webpages.cfg
define host{
use linux-server
host_name webpages
alias webpages
address 127.0.0.1
}
define service{
use generic-service ; Name of service template to use
host_name webpages
service_description web_zgzb
check_command check_webpage!-H test.cn -u /index.jsp
notifications_enabled 0
}
然后在hostgroup里linux组里加入webpages主机
define hostgroup{
hostgroup_name linux-servers ; The name of the hostgroup
alias Linux Servers ; Long name of the group
members localhost,webpages ; Comma separated list of hosts that belong to this group
}
确认下配置文件没有问题
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
OK重启一下nagios服务,就OK了.
===============================================================================
使用139邮箱进行邮件短信报警
nagios发警告邮件是采用本机的smtp服务,可以查看commands.cfg中关于发邮件的命令的定义,使用本机的mail命令,这就需要开启本机的smtp服务,为了安全可以在防火墙上设置拒绝其他的机器连本机的25号端口
另外由于移动增加了飞信api接口，在Linux命令行下使用飞信客户端需要图片验证码，飞信就不能用了,那么用139邮箱可以解决这个问题
申请139邮箱，成功申请后配置邮件到达短信通知，使用长格式。139邮件短信通知这个功能好用，而且免费：）缺点:短信报警有延时,不如linux命令行飞信报警快,但实际使用中速度还是不错的, 基本上和邮箱同步.可以不开启本机的smtp服务,这就需要重新定义命令使用第三方软件sendEmail.
139邮箱申请：http://mail.10086.cn/
http://caspian.dotconf.net/menu/Software/SendEmail/
这里邮件服务器的地址为mail.jetsum.net
用来发邮件的帐号 test@jetsum.net
SMTP验证的用户名 test密码 ******
以下就来介绍一下sendEmail这个软件的使用.
sendEmail的主页http://caspian.dotconf.net/menu/Software/SendEmail/
下载地址
wget http://caspian.dotconf.net/menu/Software/SendEmail/sendEmail-v1.56.tar.gz
软件十分小,是一个通过命令来发smtp邮件的程序.安装也十分简单(查看其README文件即可).
解压缩tar –zxvf sendEmail-v sendEmail-v1.56.tar.gz
cd sendEmail-v1.56
将可执行程序复制cp sendEmail /usr/local/bin
然后给确认确实它具有执行权限
ll /usr/local/bin/sendEmail
| -rwxr-xr-x 1 root root 77882 11-03 14:23 /usr/local/bin/sendEmail |
这样程序就装好了,使用也很简单.直接运行sendEmail就会显示详细的用法
先看一个典型的例子
/usr/local/binsendEmail -f test@jetsum.net -t 15107170098@139.com,17610376@qq.com -s mail.jetsum.net -u "send by nagios" -xu test -xp 密码 -m "just test too"
解释:
-f表示发送者的邮箱
-t表示接收者的邮箱,发多邮箱中间用逗号隔开
-s表示SMTP服务器的域名或者ip
-u表示邮件的主题
-xu表示SMTP验证的用户名
-xp表示SMTP验证的密码(注意,这个密码貌似有限制,例如我用d!5neyland就不能被正确识别)
-m表示邮件的内容
如果你不带-m参数的话,就会提示你自行输入
| Reading message body from STDIN because the ‘-m’ option was not used. If you are manually typing in a message: - First line must be received within 60 seconds. - End manual input with a CTRL-D on its own line |
输入完成后使用CTRL-D来结束
当然我们也可以将一个文件的内容作为邮件的正文发出去的那么就可以使用:
cat文件名| /usr/local/bin/sendEmail –f nagios@test.com –t yahoon@test.com –s mail.test.com –u “from nagios” –xu nagios –xp p#3isoda
有关sendEmail的用法就讲到这里
既然nagios要使用sendEmail来发警告邮件,那么就要修改commands.cfg中关于发邮件的命令的定义,我们现在来修改notify-by-email这个命令,如下(注意其中粗体的部分)
| # 'notify-by-email' command definition define command{ command_name notify-by-email command_line /usr/bin/printf "%b" "***** Nagios 2.9 *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$" | /usr/local/bin/sendEmail -f test@jetsum.net -t 15107170098@139.com,17610376@qq.com -s mail.jetsum.net -u "send by nagios" -xu test -xp 密码 } |
注:其实sendEmail是一个十分有用的程序,我们在这个地方用了它,其实别的地方也可以用,典型的好处就是你不需要每台机器都装sendmail,开启smtp服务.直接用现成的一台邮件服务器就行了,这无疑很大的加强了系统的安全性,也节约了资源.
4.编写nagios报警脚本（略），这个简单，适当修改一下即可
参考：
http://www.gaojinbo.com/nagios%E9%A3%9E%E4%BF%A1linux%E7%9F%AD%E4%BF%A1%E6%8A%A5%E8%AD%A6%E8%84%9A%E6%9C%AC%E9%85%8D%E7%BD%AE.html
转载于:https://blog.51cto.com/17610376/543614
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