It could be possible to move http://changelogs.ubuntu.com to the http://archive.ubuntu.com/ubuntu/changelogs - this way you would also be view changelogs in update manager from local mirror.
It could be possible to move http:// changelogs. ubuntu. com to the http:// archive. ubuntu. com/ubuntu/ changelogs - this way you would also be view changelogs in update manager from local mirror.