Scanning with Nmap
Frequently Asked Questions:
Question: I cannot discover the Kioptrix machine with netdiscover on VirtualBox/Mac. How do I resolve?
1. Set the network settings to NAT for both Kali and Kioptrix VMs
2. Enable promiscuous mode for both VMs in the Network Settings in VirtualBox
3. Ensure config file is changed from "bridged" to "nat"
4. Reboot both machines
Additionally, let netdiscover run for a few minutes after it says finished. It will continue to passively scan for hosts and may take a minute or two to find the host
If all else fails, please follow this guide and attempt again: https://vivirytech.blogspot.com/2018/01/oscp-journey-001-vm-prep-for-kioptrix.html