How to use Vnstat to view server bandwidth traffic statistics under Linux

Because many VPS or server are limited traffic, but many service providers do not provide a detailed flow chart, such as daily traffic table, so it is certain that some people would like to know how much traffic on their servers.

Vnstat is a very useful server traffic statistics command. I'll get a few pictures to show you.

Statistics days and month of statistics:

is not very intuitive. Let's take a look at how this command is used. Estimated is the meaning of estimating usage. Last column Avg. Rate is the average bandwidth used. Rx is receive traffic (inbound), TX is send traffic (outbound)

First step: Install

CentOS needs to install Epel source before using Yum to install

Yum install epel-release-y && yum install-y vnstat

Ubuntu installation

Apt-get Install Vnstat

Step Two: Create a monitoring database

The eth0 here can be changed to the network card you need.

Vnstat-u-I. eth0

How to view network cards

Ifconfig

Step three: Start the service and set the boot up

Start the service and set the boot up

Service Vnstat Startchkconfig Vnstat on

Users unable to use Chkconfig

chmod +x/etc/rc.localvi/etc/rc.local

Join

Service Vnstat Start

Fourth step: Traffic View command

After all the above operations, after a 10 minutes or so (really don't worry.) You go to take a piece of crap, eat a meal, sleep, you should have something to read. You can use the command to see the data pull ...

Look at the Daily Traffic statistics command:

Vnstat-d

Look at the monthly traffic statistics command:

Vnstat-m

How to use Vnstat to view server bandwidth traffic statistics under Linux