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On Windows 7, I have VirtualBox running Linux (Ubuntu 8.04), with Samba set up so that the Windows host can access it. But if the virtual machine is shut down & restored, or rebooted, the Windows Network no longer shows it.

I've tried refreshing many times, restarting Samba, disabling/enabling the virtual network adapter, and running the succession of commands ipconfig /release, ipconfig /flushdns, & ipconfig /renew, but none worked. As a last resort I could restart the host itself, but is there a better way?

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migrated from Jul 4 '11 at 2:14

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It does not show in the browser or? Can you access the Samba share directly like \\IP.or.hostname? – xeon Jan 18 '10 at 20:54

Windows networking uses NetBios for computer name resolution on file sharing. This is configured through the nbtstat command line program not ipconfig. Try running nbtstat -R to purge and reload the name cache. You should then be able to find the machine again or right click on the Computer icon to re-map the network drive manually.

Also is virtualbox using a Bridged network adapter or NAT? When trying to access VMs over the network it is usually easier to setup a bridged network adapter so long as there is a DHCP server available to assign IP addresses. Most cable modems use NAT and DHCP already so they will give private addresses to all of your virtual machines.

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Try using another NIC in VirtualBox. There are some bugs in VirtualBox and broadcast packets. (Changing the card may bring up problems. You need to empty /etc/udev/rules.d/70-persistent-net.rules if the system does not recognize your virtual NIC)

Or just simply enable the WINS proxy in your samba configuration file Howto:

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The solution is easy. Dont use a NetBios/Samba share. Instead, run a FTP server on the Linux VM and then use Windows7 to create a mapped drive to the FTP server. Its way easier and the performance is way better.

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