I think this file is somehow a leftover artifact of the image building process. I downloaded the ubuntu-26.04.1-desktop-amd64.iso and mounted the inner minimal.squashfs
% ls -la /tmp/iso/squash/etc/.resolv.conf.systemd-resolved.bak -rw-r--r-- 1 root root 862 Aug 26 02:27 /tmp/iso/squash/etc/.resolv.conf.systemd-resolved.bak % cat /tmp/iso/squash/etc/.resolv.conf.systemd-resolved.bak # This is /run/systemd/resolve/resolv.conf managed by man:systemd-resolved(8). # Do not edit. # # This file might be symlinked as /etc/resolv.conf. If you're looking at # /etc/resolv.conf and seeing this text, you have followed the symlink. # # This is a dynamic resolv.conf file for connecting local clients directly to # all known uplink DNS servers. This file lists all configured search domains. # # Third party programs should typically not access this file directly, but only # through the symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a # different way, replace this symlink by a static file or a different symlink. # # See man:systemd-resolved.service(8) for details about the supported modes of # operation for /etc/resolv.conf. nameserver 10.131.53.11 nameserver 10.131.53.12 nameserver 10.131.53.13 search ppa openstack.prodstack5.lan I don't think this is a dnsmasq bug at all. Should this be a task in livecd-rootfs? Unsure what actually generate those images. ** Tags added: server-triage-discuss -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2169298 Title: Strange hiden config file with private ip address as dns server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/2169298/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
