A log from Wireshark, which shows the two DNS queries and answers.
er.log (application/octet-stream), 3.17 KB, created by Thomas Aho on 2010-01-02 10:00:33 UTC
(hide)
 
Creator: Thomas Aho
Created: 2010-01-02 10:00:33 UTC
Size: 3.17 KB

Attachment is not viewable in your browser because its MIME type (application/octet-stream) is not one that your browser is able to display.

Download the attachment.

Actions: View
Attachments on bug 567877: 334710