How to let virtualbox guest machine traffic through proxy?

Question

virtual box

Task: let the network traffic of the VirtualBox guest machine through a proxy without resorting to setting up a proxy on the guest machine itself. How to do it?

Answer 1

Run two virtual machines, on one only the internal network, on the other - both internal and external with access to the Internet. On the second, forward traffic from the internal network interface to a proxy on the external network interface, for example, using redsocks or something similar

Answer 2

The proxy must be specified in the settings of the network card of the virtual machine, both as the main gateway and as DNS.