Package: libc-bin Version: 2.21-9 Severity: normal Tags: ipv6 Hi,
on my jessie systems localhost resolves to 127.0.0.1 (expected), on this stretch one it it's ::1 (unexpected). The latter also breaks services that don't listen on IPv6, so calling up "http://localhost:8080/"; in iceweasel, for instance, leads nowhere. /etc/hosts, /etc/host.conf and /etc/gai.conf are functionally identical so at first glance it's a change in default behaviour that's also going to bite upgrades. I originally reported this as #818243, but apparently it's intended behaviour and I should fix the client. Fair enough, and at least it pointed me to /etc/gai.conf, but * until all clients are fixed, this behaviour of preferring IPv6 will break a lot of stuff in mysterious ways. * I don't use IPv6 at all, it's just enabled by default, so I'm not willing to devote a lot of time to fixing issues with it (like filing bugs against all clients or ploughing through an RFC to understand what /etc/gai.conf does and how). How about a debconf option to have the resolver prefer IPv4 or IPv6 and a note in the release notes? Regards, Christian -- System Information: Debian Release: stretch/sid APT prefers testing-updates APT policy: (500, 'testing-updates'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.3.0-1-amd64 (SMP w/2 CPU cores) Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libc-bin depends on: ii libc6 2.21-9 Versions of packages libc-bin recommends: ii manpages 4.04-2 libc-bin suggests no packages. -- no debconf information
