os:amazon-linux-ami/2016.03
1, import third-party Epel source installation Vnstat
#sudo Yum--enablerepo=epel Install Vnstat
2. Generate Vnstat Database
#sudo Vnstat-u-I. eth0
Note: First confirm your network card number, through the ifconfig-a command can be seen, if your network card is not eth0, you want to modify the corresponding network card name, and modify/etc/vnstat.conf interface "eth0" for your network card name.
3. Start Vnstat
#sudo vnstatd-d
4, set Vnstat with the system self-start
#sudo Chkconfig Vnstat on
Note: Due to compile-and-install Vnstat will occasionally stop statistical traffic, especially under CentOS, when the traffic database is too large often appear bug, so the personal recommended use source installation.
This article is from the "Shudeyang" blog, make sure to keep this source http://clark168.blog.51cto.com/136366/1790662
EC2 on-source installation Vnstat