nagios监控linux网卡流量（check_traffic.sh）
1、安装所需组件yum install perl perl-devel perl-CPAN bc net-snmpd net-snmp-utils -y
perl -MCPAN -eshell& cpan> install Bundle::LWP
编译安装nrpe（参考教程：http://2860664.blog.运维网.com/2850664/1559056）
以下是被监控端设置
2、下载check_traffic.s脚本
下载地址：https://codeload.github.com/cloved/check_traffic/zip/v1.3.11
解压文件后，上传check_traffic.sh到/usr/local/nagios/libexec
chmod +x check_traffic.sh
chown nagios.nagcmd check_traffic.sh
3、设置snmp参数
vi /etc/snmp/snmpd.conf
com2sec notConfigUser被监控端IPpublic
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
accessnotConfigGroup "" any noauth exactall none none
view all included.1 80
syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root(configure /etc/snmp/snmp.local.conf)service snmpd start
chkconfig snmpd on
4、在被监控端测试脚本
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
其中红色为被监控端的IP地址。
4、vi /usr/local/nagios/etc/nrpe.cfg添加
command=/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主机的设置
5、服务器端测试
/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（注意修改被监控端的IP）内容如下
****************************************我是分割线************************************
define host{
use linux-server
host_name nginx
alias nginx
address 被监控端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_descriptionotal_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
}****************************************我也是分割线************************************
报错信息
7、nagios服务器报错
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).
解决方法：chmod nagios.nagcmd /var/tmp/check_traffic_192.168.1.247_2__itnms.hist_dat_64
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