客户端
1.安装snmp组件
[root@localhost ~]# yum install -y net-snmp net-snmp-libs net-snmp-utils
2.更改配置文件 /etc/snmp/snmpd.conf
com2sec notConfigUser default public #改为 监控主机ip
access notConfigGroup "" any noauth exact systemview none none # 改为mib2
#view mib2 included .iso.org.dod.internet.mgmt.mib-2 fc # 去除注释
3.测试连接
snmpwalk -v 2c -c public 127.0.0.1 #需要将配置文件ip临时改为127.0.0.1 正确的话会出现好多内容
服务端
1. 移动check_traffic.sh脚本到 nagios插件目录,本例位于 /usr/lib64/nagios/plugins/
mv check_traffic.sh /usr/lib64/nagios/plugins/
2.更改脚本权限
chmod 755 check_traffic.sh
3.安装 bc #报错信息见error 1
[root@m plugins]# yum install -y bc.x86_64
4.
查看网卡编号
[root@m plugins]# /usr/lib64/nagios/plugins/check_traffic.sh -V 2c -C public -H 10.10.4.41 -L
测试
/usr/lib64/nagios/plugins/check_traffic.sh -V 2c -C public -H 10.10.4.41 -I 2 -w 300,500 -c 600,800 -M -b # -I 2的2为检测到的网卡索引号
OK - The Traffic In is 33.38Mbps, Out is 15.28Mbps, Total is 48.66Mbps. The Check Interval is 90s |In=33.38Mbps;300;600;0;0 Out=15.28Mbps;500;800;0;0 Total=48.66Mbps;800;1400;0;0 Interval=90s;1200;1800;0;0
5.添加命令
vim /etc/nagios/objects/commands.cfg
# 'check_traffic' command definition
define command{
command_name check_traffic
command_line $USER1$/check_traffic.sh -V 2c -C public -H $HOSTNAME$ -I $ARG1$ -w $ARG2$ -c $ARG3$ -M -B
}
vim /etc/nagios/objects/api.cfg #本例是在现有的基础上添加的
define service{
use api-service
hostgroup_name api
service_description check_traffic
notifications_enabled 1
check_command check_traffic!2!300,300!600,600
max_check_attempts 1
}
error 1
[root@m plugins]# /usr/lib64/nagios/plugins/check_traffic.sh -V 2c -C public -H 10.10.4.41 -I 2 -w300,500 -c600,800 -M -b
/usr/lib64/nagios/plugins/check_traffic.sh: line 449: bc: command not found
/usr/lib64/nagios/plugins/check_traffic.sh: line 454: bc: command not found
/usr/lib64/nagios/plugins/check_traffic.sh: line 457: bc: command not found
/usr/lib64/nagios/plugins/check_traffic.sh: line 458: bc: command not found
/usr/lib64/nagios/plugins/check_traffic.sh: line 461: [: too many arguments
/usr/lib64/nagios/plugins/check_traffic.sh: line 576: bc: command not found
/usr/lib64/nagios/plugins/check_traffic.sh: line 577: bc: command not found
解决方法
yum install -y bc
error 2
Unknown - Can not found data in the history data file. Please to check the file /var/tmp/check_traffic_10.10.4.41_2.hist_dat_root__64 ,or use use verbose mode and check the debug file
Unknown是由于
第一次执行,因为history data file不存在,因此会由此提示,可以忽略。
如果每次执行都忽略,则要检查/var/tmp下是否有/var/tmp/check_traffic_${Host}_${Interface}.hist_dat文件生成。