1. 监控机 ( 10.10.10.145 ubuntu 14.04 已配置好 nagios )
2. 被监控机 ( 10.10.10.146 ubuntu server 14.04 64bit )
被监控端 ( 146 )
sudo apt-get install nagios-plugins
2. 安装 nagios-nrpe-server
sudo apt-get install nagios-nrpe-server
找到
allowed_hosts=127.0.0.1
修改为
allowed_hosts=127.0.0.1,10.10.10.145 #10.10.10.145 即为控制端IP
然后重启服务
sudo /etc/init.d/nagios-nrpe-server restart
监控端 (145)
sudo apt-get install nagios-nrpe-plugin
xiaofei@xiaofei-O-E-M:/usr/lib/nagios/plugins$ ./check_nrpe -H 10.10.10.146
NRPE v2.15
----------------- 安静的美男子分割线 ---------------------
正常情况下, 在 /etc/nagios-plugin/config 下已存在 check_nrpe.cfg文件 , 该文件对 check_nrpe 命令进行了定义,如果没有,可以按以下方式进行添加
添加 check_nrpe 命令
## check_nrpe
define command{
command_name check_nrpe
command_name $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
好了,让我们来试试怎么对 146 机器 进行一些监控吧
sudo vim u146.cfg
添加以下代码
# Total Processes
define service{
use generic-service
host_name 10.10.10.146
service_description Total Processes
check_command check_nrpe_1arg!check_total_procs
}
# Zombie Processes
define service{
use generic-service
host_name 10.10.10.146
service_description Zombie Processes
check_command check_nrpe_1arg!check_zombie_procs
}
# Disk
define service{
use generic-service
host_name 10.10.10.146
service_description Disk vda1
check_command check_nrpe_1arg!check_vda1
}
# Current Load
define service{
use generic-service
host_name 10.10.10.146
service_description Current Load
check_command check_nrpe_1arg!check_load
}
注意上面的命令 check_load , check_vda1 , check_total_procs ..... 它们在哪里定义了的呢...
我们去到被控端 146 这台机器
vim nrpe.cfg
# Note: Any plugins that are used in the command lines must reside
# on the machine that this daemon is running on! The examples below
# assume that you have plugins installed in a /usr/local/nagios/libexec
# directory. Also note that you will have to modify the definitions below
# to match the argument format the plugins expect. Remember, these are
# examples only!
# The following examples use hardcoded command arguments...
command[check_users]=/usr/lib/nagios/plugins/check_users -w 5 -c 10
command[check_load]=/usr/lib/nagios/plugins/check_load -w 15,10,5 -c 30,25,20
command[check_hda1]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/hda1
command[check_vda1]=/usr/lib/nagios/plugins/check_disk -w 20% -c 10% -p /dev/vda1
command[check_zombie_procs]=/usr/lib/nagios/plugins/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/lib/nagios/plugins/check_procs -w 150 -c 200
** check_mysql 可以监控mysql状态 , check_tcp , check_udp可以监控端口状态 ** 就不一一举例了
------------- 再次的华丽的美男子分割线 ----------------------------
nagios-plugin 自带了很多的服务,但我们发现,有些关键服务并没有提供,比如cpu使用情况 ,内存使用情况 , memcached缓存使用情况 等 等 ,这时候就需要我们自己来创建 了
http://exchange.nagios.org/directory/Plugins 这里有各种各样的监控插件,选择合适的
放到被监控机的 /usr/lib/nagios/plugins下即可,记得要修改一下文件权限...
然后回到 /etc/nagios/nrpe.cfg中,添加 [command] 命令即可....
如:
command[check_mem]=/usr/lib/nagios/plugins/check_mem.pl -w 10 -c 5 -f -U
command[check_memcached]=/usr/lib/nagios/plugins/check_memcached.py -H localhost -p 11211