Comment 3 for bug 199511

These were more or less the instructions I needed. Mark up "foo" to be the current person's or project's PPA.

Put the following in your ~/.dput.cf:
[foo-ppa]
fqdn = ppa.launchpad.net
method = ftp
incoming = ~foo-testing/ubuntu/
login = anonymous
allow_unsigned_uploads = 0

Then:
debuild -S -sa
dput foo foo_0.1-0ubuntu5_source.changes

For more information, see:
https://help.launchpad.net/PPAQuickStart