Ntopng is a free, open-source network monitoring tool with a web interface for real-time network traffic monitoring. Ntopng is the latest version of the original Ntop. * A [fully-updated Ubuntu Linux](https://docs.vultr.com/how-to-update-a-vultr-cloud-server#how-to-update-debian--ubuntu) 20.04 server. You must add the official Ntopng repository to install the latest version of Ntopng. The default Ubuntu repository has older versions. 1. Add the necessary dependencies. $ sudo apt install ......