[root@localhost bandwidthd-2.0.1]# yum install -y net-snmp

[root@localhost bandwidthd]# gedit /etc/snmp/snmpd.conf

view    systemview    included  .1.3.6.1.2.1.1

view    systemview    included  .1.3.6.1.2.1.25.1.1

view    systemview    included  .1.3.6.1.2.1.2

[root@localhost bandwidthd]# service snmpd start

正在啟動snmpd：                                           [確定]

[root@localhost bandwidthd]#

[root@localhost bandwidthd]# yum install -y mrtg

[root@localhost bandwidthd]# gedit /etc/httpd/conf.d/mrtg.conf 

<Location /mrtg>

    Order deny,allow

#    Deny from all      //這句要注釋掉

    Allow from all      //這里為all，允許檢測所有ip

    Allow from ::1

    # Allow from .example.com

</Location>

[root@localhost bandwidthd]# cfgmaker public@192.168.0.113>/etc/mrtg/mrtg.cfg       //生成文件，注意ip地址需要用戶自己設置

[root@localhost bandwidthd]# gedit /etc/mrtg/mrtg.cfg      //修改文件

#  for UNIX

 WorkDir: /var/www/mrtg      //當前處于centos系統，因此這句去掉注釋.這個路徑是apache下的網頁路徑

#  or for NT

# WorkDir: c:\mrtgdata

### Global Defaults

#  to get bits instead of bytes and graphs growing to the right

 Options[_]: growright, bits    //去掉注釋

[root@localhost bandwidthd]# env mrtg /etc/mrtg/mrtg.cfg   //第一次

2018-08-22 14:50:00, Rateup WARNING: /usr/bin/rateup could not read the primary log file for 192.168.0.113_2

2018-08-22 14:50:00, Rateup WARNING: /usr/bin/rateup The backup log file for 192.168.0.113_2 was invalid as well

2018-08-22 14:50:00, Rateup WARNING: /usr/bin/rateup Can't remove 192.168.0.113_2.old updating log file

2018-08-22 14:50:00, Rateup WARNING: /usr/bin/rateup Can't rename 192.168.0.113_2.log to 192.168.0.113_2.old updating log file

[root@localhost bandwidthd]# env mrtg /etc/mrtg/mrtg.cfg    //第二次

[root@localhost bandwidthd]# env mrtg /etc/mrtg/mrtg.cfg    //第三次