On Tue 28 Apr 2015 at 17:09:45 +0800, mudongliang wrote: > Today I want to install apt-spy to find the fastest mirror , but the > apt-get tells me no this package! Bug #779468: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=779468 Use http.debian.net in sources.list. The list archives have plenty of information on the redirector.