jcollie's questions

I would like to be able to reliably determine the UUID associated with an OpenStack guest from within the guest. A klugey way to do it would be something like:

# nova show `hostname` | grep ' id '
| id                                   | 10493365-870f-4ff1-86ed-500b4b8db814                                 |

However, the hostname that a system knows itself as would not necessarily be the hostname that OpenStack knows the guest as.

Is there a way do do what I want? BTW, I'd actually be running this at Rackspace.

I'm starting to roll out IPv6 across our network and I would like a way to tell from within wpad.dat if a given host/url is IPv6-only (like ipv6.google.com). The reason that I ask is because our proxy server (Astaro Security Gateway v7) is IPv4-only and returns an error page if you try and access an IPv6-only host through it. The next version of our proxy server supports IPv6 but it may be a while before we are able to upgrade.

Most of our users are using Internet Explorer - our standard is IE7 but there are quite a few people still using IE6 and there are also a lot of people using Firefox, Chrome, and Safari, and who knows what else.