On Tue, 26 Jan 2016 17:19:09 -0500 Haines Brown <hai...@histomat.net> wrote:
> # aptitude update > Err: http://ftp.us.debian.org/debian unstable InRelease > temporary failure resolving 'ftp.us.debian.org' > W: Failed to fetch > http://ftp.us.debian.org/debian/dists/unstable/InRelease: > temporary failure resolving ftp.us.debian.org I suspect this is a problem either server-side or something to do with your connection. Note the 'failure resolving ftp.us.debian.org'. It can't even access the server, let alone download the InRelease file.