> Looking at /var/log/apt-cacher I see lots of lines like Sun Aug 21 06:56:28 > 2016|info [7482]: Warning: libcurl failed for > http://debian/dists/testing/main/i18n/Translation-de with +status Peer > certificate cannot be authenticated with given CA certificates
OK, I think I have misunderstood this and the CA error has made me miss the obvious -- Sorry! On Mon, Aug 22, 2016 at 07:43:59PM +0200, Helge Kreutzmann wrote: > Hello Mark, > On Mon, Aug 22, 2016 at 11:20:06AM +0100, Mark Hindley wrote: > > Thanks. I am wondering where your HTTPS upstream is configured? What do you > > have in /etc/apt/sources.list? > > root@samd:~# grep -v "^#" /etc/apt/sources.list > deb http://172.16.18.51:9999/debian testing main You need to configure your upstream host somewhere. Probably the easiest for you is to add the host to sources.list: deb http://172.16.18.51:9999/upstream.host.fdqn/debian testing main This is documented as accessing apt-cacher as a mirror in the manpage. Alternatively you could create a path_map setting: path_map = debian upstream.host.fqdn/debian Do you have a local DNS that means that debian resolves as a hostname? Best wishes Mark
