I've been trying to download Natty for days now, but either the internet here in Vietnam is totally shot or the Ubuntu CD server has a lot of traffic, because I can't get it to download faster than about 15Kbps. Does anyone know of a mirror, preferably close to Vietnam, where I could download (zsync) this image faster? Googling hasn't helped me, nor has Ubuntu's list of mirrors (I get stuck in a rabbithole of FTP folders, and nothing seems to point to the daily image).
It seems that most mirrors only mirror releases or the package archives, but not the daily ISOs.
I've put together a Google search that brings up some mirrors that you could try. I haven't seen any that are in Asia though. Below are the first few results I get.
http://ftp.heanet.ie/mirrors/download.sourceforge.net/ubuntu-cdimage/daily-live/current/ http://ftp.df.lkams.kernel.org/pub/ubuntu-cdimage/daily-live/current/ http://mirrors.med.harvard.edu/ubuntu-cdimage/daily-live/current/ http://184.108.40.206/MIRRORS/ubuntu-cdimage/daily-live/current/ http://ftp.sh.cvut.cz/MIRRORS/ubuntu-cdimage/daily-live/current/ http://mirror.leaseweb.com/ubuntu-cdimage/daily-live/current/
You could always try the official link that should find the nearest mirror. http://www.ubuntu.com/start-download
But as another user has already posted most mirrors do not mirror the daily ISOs.