Package: resolvconf Version: 1.90 Severity: important In SNCF trains in France, the use of resolvconf prevents wifi.sncf from being resolved. The issue seems to be that it is a local address, thus it needs to use the nameserver provided by the DHCP server.
Removing the /etc/resolv.conf symlink (thus disabling resolvconf) and reconnecting solves the issue. FYI, something like the following is what is expected: nameserver 127.0.0.1 nameserver 10.9.0.4 -- System Information: Debian Release: bookworm/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'stable-security'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.15.0-2-amd64 (SMP w/8 CPU threads) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=POSIX, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages resolvconf depends on: ii debconf [debconf-2.0] 1.5.79 ii lsb-base 11.1.0 resolvconf recommends no packages. resolvconf suggests no packages. -- debconf information: resolvconf/reboot-recommended-after-removal: resolvconf/link-tail-to-original: false resolvconf/downup-interfaces: resolvconf/linkify-resolvconf: true -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)