Monitor Bandwidth consumption in an OpenVZ container can be done through a few methods:
1. vzcalc – This is the utility used to get the current consumption of resources in a container. You can run the “vzcalc —netif venet0 —id ctid” command to check the counter of network traffic for the container.
1. vzdqdump – Network bandwidth: This shows the amount of network traffic used by the specific virtual machine. Use “vzdqdump CTID” command to check the consumption.
1. Install a Network Monitoring Tool: There are several third-party network monitoring tools that can be installed within the container. A common example is “vnStat”, a console-based network traffic monitoring tool. This will provide daily, weekly, and monthly breakdowns of network usage.
1. If OpenVZ is running on Proxmox, you can use Proxmox’s built-in graphs to monitor network usage.
Remember to replace “ctid” with your actual container’s ID in the commands, and some commands must be executed as the root user or using sudo.
