Virtualization redirect upon network loss

heiho1 — Thu, 26 Apr 2007 19:21:38 GMT

Hello,I have been taking a look at the 2.0 release of the web content management functionality. I am very impressed by the solution taken to handle virtualization. I would like to learn more about how the virtualization works. In particular, I noticed that if I disconnect my network and try to lo

Re: Virtualization redirect upon network loss

jcox — Wed, 18 Jul 2007 18:27:26 GMT

James,

The virt server has nothing to do with those other open ports
on your box. To verify that turn it off and re-run your port scan

The reason why your box can still resolve a name after you've
been disconnected from the internet is that your local machine
is caching the DNS lookups you did previously. The time to live
(TTL) associated with name lookups performed by EchoDNS
on ip.alfrescodemo.net is 1 day. Thus to see the lookup fail, reboot
your client machine to flush its cache (or if you don't want to do
that and can wait a day, the cached DNS record will expire on its own).

At that point, all lookups will fail when if you're both using EchoDNS
at ip.alfrescodemo.net and still disconnected from the Internet
(which is what you'd expect). EchoDNS is a special-purpose nameserver
I wrote to make installing Alfresco's WCM package not require you to
modify your own DNS setup.

For much more information about the virtualization server:
http://wiki.alfresco.com/wiki/Virtualization_Server_FAQ

If you want a direct link to the section of the FAQ that talks about EchoDNS, see:
http://wiki.alfresco.com/wiki/Virtualization_Server_FAQ#What.27s_EchoDNS.3F

Cheers,
-Jon

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Virtualization redirect upon network loss

Re: Virtualization redirect upon network loss