1、安裝所需組件
yum install perl perl-devel perl-CPAN bc net-snmpd net-snmp-utils -y
perl -MCPAN -eshell & cpan> install Bundle::LWP
編譯安裝nrpe（參考教程：http://2860664.blog.51cto.com/2850664/1559056）
以下是被監控端設置
2、下載check_traffic.s腳本
下載地址：https://codeload.github.com/cloved/check_traffic/zip/v1.3.11
解壓文件後，上傳check_traffic.sh到/usr/local/nagios/libexec
chmod +x check_traffic.sh
chown nagios.nagcmd check_traffic.sh
3、設置snmp參數
vi /etc/snmp/snmpd.conf
com2sec notConfigUser 被監控端IP public group notConfigGroup v1 notConfigUser group notConfigGroup v2c notConfigUser view systemview included .1.3.6.1.2.1.1 view systemview included .1.3.6.1.2.1.25.1.1 access notConfigGroup "" any noauth exact all none none view all included .1 80 syslocation Unknown (edit /etc/snmp/snmpd.conf) syscontact Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
service snmpd start
chkconfig snmpd on
4、在被監控端測試腳本
cd /usr/local/nagios/libexec
./check_traffic.sh -V 2c -C public -H 192.168.1.247 -I 2 -w 1200,1500 -c 1700,1800 -K -B
OK - The Traffic In is 0.72KB, Out is 0.60KB, Total is 1.32KB. The Check Interval is 43s |In=0.72KB;1200;1700;0;0 Out=0.60KB;1500;1800;0;0 Total=1.32KB;2700;3500;0;0 Interval=43s;1200;1800;0;0
其中紅色爲被監控端的IP地址。
4、vi /usr/local/nagios/etc/nrpe.cfg 添加
command[check_traffic]=/usr/local/nagios/libexec/check_traffic.sh -V 2c -C public -H 192.168.1.247 -I 2 -w 1200,1500 -c 1700,1800 -K -B
以下是nagios主機的設置
5、服務器端測試
/usr/local/nagios/libexec/check_nrpe -H 192.168.1.247 -c check_traffic
OK - The Traffic In is 0.48KB, Out is 0.11KB, Total is 0.59KB. The Check Interval is 28s |In=0.48KB;1200;1700;0;0 Out=0.11KB;1500;1800;0;0 Total=0.59KB;2700;3500;0;0 Interval=28s;1200;1800;0;0
vi /usr/local/nagios/etc/nagios.cfg 添加
cfg_file=/usr/local/nagios/etc/objects/nginx.cfg
6、touch /usr/local/nagios/etc/objects/nginx.cfg
vi /usr/local/nagios/etc/objects/nginx.cfg （注意修改被監控端的IP）內容如下
****************************************我是分割線************************************
define host{
use linux-server
host_name nginx
alias nginx
address 被監控端IP
}
define service{
use generic-service
host_name nginx
service_description check-swap
check_command check_nrpe!check_swap
}
define service{
use generic-service
host_name nginx
service_description check-load
check_command check_nrpe!check_load
}
define service{
use generic-service
host_name nginx
service_description check-disk
check_command check_nrpe!check_sda1
}
define service{
use generic-service
host_name nginx
service_description check-users
check_command check_nrpe!check_users
}
define service{
use generic-service
host_name nginx
service_description otal_procs
check_command check_nrpe!check_total_procs
}
define service{
use generic-service ; Name of service template to use
host_name nginx
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service
host_name nginx
service_description nginx_status
check_command check_nrpe!check_nginx!
notifications_enabled 0
}
define service{
use generic-service
host_name nginx
service_description network_traffic
check_command check_nrpe!check_traffic!
notifications_enabled 0
}****************************************我也是分割線************************************
報錯信息
7、nagios服務器報錯
Unknown - Read or Write File /var/tmp/check_traffic_192.168.1.247_2__itnms.hist_dat_64 Error with user uid=501(nagios) gid=503(nagcmd) groups=502(nagios),503(nagcmd).
解決方法：chmod nagios.nagcmd /var/tmp/check_traffic_192.168.1.247_2__itnms.hist_dat_64