Why does the Internet disappear on Linux (VirtualBox)?

Question

linux

Hello, I am a web application pentester. I use tools like httprobe (takes a list of domain names and checks if the site is live) and gobuster (a brute force tool). It is these tools that kill my Internet (only on a virtual machine, everything works on a home OS), but not immediately, but some time after launch (gobuster processes + -800 words from the list and that's it).
VB is based on Kali Linux, I did not change the network settings.
What could be the problem and how to solve it?

Thank you.

Answer 1

promiscuous mode allow all in adapter security settings

Answer 2

Disappearance is not an engineering term. What does a disappearance look like from a gubuster's point of view?
Connection timed out? Connection refused? Ping. Trace the routes. If you are busy with such a difficult task as pen-test, then you need to be a specialist in networks. Otherwise, your conclusion about pentesting will be poorly substantiated.