nagios监控实例
前面我们写了nagios的server端和client端的安装过程，这里我们写一下nagios的监控范例添加监控本地服务器磁盘，监控/dev/sda3，即/分区
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# df -h
Filesystem SizeUsed Avail Use% Mounted on
/dev/sda3 97G1.6G 90G 2% /
tmpfs 495M 0495M 0% /dev/shm
/dev/sda1 194M 28M156M16% /boot
#编辑相应配置文件
# vim /usr/local/nagios/etc/objects/commands.cfg
#从这个文件中我们知道该监控脚本需要3个参数
define command{
command_name check_local_disk
command_line $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
}
#修改文件，添加要监控的分区
# vim /usr/local/nagios/etc/objects/localhost.cfg
define service{
use local-service
host_name localhost
service_description disk_monitor
check_command check_local_disk!30%!20!/dev/sda3
notifications_enabled 1
}
#用命令进行调试
# /usr/local/nagios/libexec/check_disk -w 30% -c 20% /dev/sda3
DISK OK - free space: / 92072 MB (98% inode=99%);| /=1544MB;69038;78900;0;98626
#检查配置文件
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
#重启nagios服务
# service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
查看结果
这里我们监控我们前一篇文章中的nagios-client:192.168.3.72的sdb
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#编辑文件
# vim /usr/local/nagios/etc/nrpe.cfg
command=/usr/local/nagios/libexec/check_users -w 5 -c 10
command=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1
#添加sdb这一行
command=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sdb
command=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command=/usr/local/nagios/libexec/check_procs -w 150 -c 200
#重启nrped服务
# service nrped restart
Stopping NRPE daemon... done.
Starting NRPE daemon... done.
# netstat -anpt |grep nrpe
tcp 0 0 192.168.3.72:5666 0.0.0.0:* LISTEN 1492/nrpe
在nagios-server:192.168.3.71进行配置
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# pwd
/usr/local/nagios/etc/objects
# vim commands.cfg
#在末尾添加如下内容
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
# pwd
/usr/local/nagios/etc
# vim nagios.cfg
#在第36行添加
cfg_file=/usr/local/nagios/etc/objects/192.168.3.72.cfg
# pwd
/usr/local/nagios/etc/objects
# cat 192.168.3.72.cfg
define host{
use linux-server
host_name 192.168.3.72
alias nagios-client
address 192.168.3.72
}
define hostgroup{
hostgroup_name clients
alias linux-servers
members 192.168.3.72
}
define service{
use local-service
host_name 192.168.3.72
service_description check_disk_sdb
check_command check_local_disk!30%!20!/dev/sdb
notifications_enabled 1
}
#检查配置文件
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
#重启nagios服务
# service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios: done.
查看结果
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