Comment 2 for bug 117398

my workaround of putting the proxly in the hostname and the hostname in the directory has a side effect: it is not used for the additional mirrors when sources.list is created:

deb http://cp600:3142/us.archive.ubuntu.com/ubuntu feisty main restricted (good)

deb http://security.ubuntu.com/ubuntu feisty-security main restricted (bad)

(not surprised, just pointing out that the workaround doesn't totally work.