Monitoring network traffic or bandwitdh usage is a must in a SysAdmin tasks. There are many differents tools to manage this monitoring, but one of my favorites is vnStat. The main advantage of this tool is the simplicity of its usage.
With Ubuntu, the way to install this tool is with apt.
sudo apt-get install vnstat
Once installed, it is important to know which interfaces are going to be monitoried. For this, you can use next command
In my case, I have 2 interfaces (eth0, wlan0). The lo interface is the loopback interface, and this is not monitored.
yvoictra|zoar:~$ netstat -i Kernel Interface table Iface MTU RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg eth0 1500 0 0 0 0 0 0 0 0 BMU lo 65536 58 0 0 0 58 0 0 0 LRU wlan0 1500 12521 0 1 0 1962 0 0 0 BMRUContinue reading How to monitor network traffic on Ubuntu using vnStat