virtualbox.org

I am running a guest install of Ubuntu 9.10 on a Windows XP Host. The guest boots fine and operates normally. The only problem I have is that, while web browsing in the guest, each link I click results in a very lengthy "Looking up www.whatever.com" in the browser status pane. It can take up to 20 seconds for the lookup to go through.

Virtualbox is running in NAT mode. Terminal-based nslookups also result in long delays before resolution. I checked /etc/resolv.conf and the only entry is a valid nameserver.

What happens if you change the DNS server itself? Try an OpenDNS server for once. Does your Host have the same primary DNS server? Any fallback servers? I think the DNS server you have for the VM is just slow.

Thanks for the reply. The host has the sane DNs server and has no performance lag.

See Chapter 9.8.5. Enabling DNS proxy in NAT mode & Chapter 9.8.6. Using the host's resolver as a DNS proxy in NAT mode in your VirtualBox Users Manual.

I'll check those out thanks.