However, I’m trying to test out some new networking ideas for my OpenStack Network node, and it doesn’t have a NIC configured with NAT. Of course, you’re saying “There’s a better way to do that!” And of course, I agree: with no other considerations, the best way to do this is to simply add another NIC to the VM configured as NAT instead of host-only. You can check if it works properly by running: systemctl start vboxhostonlynic.I ran into the need to access the internet from a VirtualBox VM via host-only networking. Now install the systemd service unit and enable it so it will be executed at the boot time: systemctl daemon-reload Next create the rvice file in /etc/systemd/system/: Description=Setup VirtualBox Hostonly Adapter * make sure this file has executable permissions One way to have it run on reboot is to use the rvice.įirst create a bash script to run the vboxmanage commands: On some distributions, the host-only interface vboxnet0 will not persist between reboots. Now you need to install the agent on the guest and edit the conf/nf file with the correct parameters as outlined in the Cuckoo documentation, set up your snapshot and you are in business. If everything worked properly you should now have Internet connectivity from the guest to the Internet and you should be able to ping back and forth between the guest and the host. You will also need to enable IP forwarding on the host by issuing the following command (as root): echo 1 > /proc/sys/net/ipv4/ip_forward Iptables -A POSTROUTING -t nat -j MASQUERADE Iptables -A FORWARD -m conntrack -ctstate ESTABLISHED,RELATED -j ACCEPT This will forward packets through the host and on to the Internet: iptables -A FORWARD -o eth0 -i vboxnet0 -s 192.168.56.0/24 -m conntrack -ctstate NEW -j ACCEPT In order to have your Virtual Machines be able to access the internet you will have to add the following iptables rules.
I use the following settings: Static IP - 192.168.56.101 Now you will have to set up networking on the guest to use the host as a gateway. Vboxmanage modifyvm CuckooBox -nic1 hostonly This can be done with the following commands: vboxmanage modifyvm CuckooBox -hostonlyadapter1 vboxnet0 Next you need to set the NIC on the guest Virtual Machine as a host only interface. TX packets:273 errors:0 dropped:0 overruns:0 carrier:0 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Now you should see vboxnet0 configured with that IP when running ifconfig: vboxnet0 Link encap:Ethernet HWaddr 0A:00:27:00:00:00 Vboxmanage hostonlyif ipconfig vboxnet0 -ip 192.168.56.1 This post assumes that you have Virtualbox and your guest VMs installed and Cuckoo extracted somewhere.įirst create a host-only interface on host: vboxmanage hostonlyif create This method is preferred over bridged networking because you only need one external IP. Using this method you can have multiple analysis machines running on the same server concurrently while giving all of them access to the Internet. The purpose of this post is to guide you through setting up host-only networking using VirtualBox for Cuckoo Sandbox. It is still current for the latest release candidate (2.0-rc1). This post was originally written for Cuckoo 0.4.2.
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