Ubuntu One is not IPv6-ready

[Roman Yepishev]

It is not possible to access Ubuntu One hosts from IPv6 network, AAAA records do not exist so it is impossible to know whether there is any IPv6 address assigned to Ubuntu One servers.

 <<>> DiG 9.6.1-P2 <<>> -t AAAA one.ubuntu.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24634
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;one.ubuntu.com. IN AAAA

;; AUTHORITY SECTION:
ubuntu.com. 3600 IN SOA ns1.canonical.com. hostmaster.canonical.com. 2010010801 10800 3600 604800 3600

;; Query time: 53 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Tue Jan 12 15:54:16 2010
;; MSG SIZE rcvd: 93

Once this is fixed on the server the client might need to be reviewed to check that it supports IPv6 connections.

[Jonathan Davies (jpds)]

This is similiar to bug #241305 - there are no plans to add IPv6 support to our network and twisted which Ubuntu One uses internally, does not support IPv6 itself at the current time (http://twistedmatrix.com/trac/ticket/3014).