How to view the real-time traffic bandwidth of Linux __linux

Reprint: Http://hi.baidu.com/helloant/item/af52b8edf2e8e6e62a09a4d4

Viewing real-time bandwidth consumption requires installing the software and logging in to SSH to view it in a command way. Install the Vnstat command as follows:
wget soft.sindns.net/vnstat-1.10.tar.gz
Tar xzvf vnstat-1.10.tar.gz
CD vnstat-1.10
Make && make install

Generally used to view traffic commands:
Vnstat-l-I eth0 view real-time traffic
Vnstat–tr–i eth0 View average traffic for the last five seconds

Amount of data received by Rx
The amount of data sent by Tx

If you find that the peak bandwidth exceeds your server for a long time (such as your peak bandwidth of 5m, where Rx or TX is longer than 5MBIT/S), please check your site immediately, may have site traffic too large or access abnormal.