Is the use of resolvconf and ifupdown without resolved an unsupported configuration in 17.10? Is resolved the only supported DNS configuration management system in Ubuntu 17.10? There are many users who value the control and flexibility of pre-resolved systems and do not want a local caching nameserver.
The inadequacy is that systemd breaks resolvconf. I highly doubt that resolvconf will be removed from the archives in 18.04 because resolved is clearly not ready. Look at the number of upgrade issues and bugs filed against it. There are too many systems, mainly servers, that cannot or should not run a nameserver, not even a local one. resolved is not ready to service these systems. Because resolved is packaged with systemd, one cannot choose to run systemd without resolvd. This coupling makes the system less flexible and more fragile. There's another inadequacy for you. Not only have I discovered a bug, I have given the solution to the bug in two packages. My proposed solution does not affect performance nor hinder proper behavior in any way. It simplifies interface configuration. This simple fix should be favored over the removal of software that is stable, functional, and time-tested. Denying the existence of the bug doesn't make it go away. I've reported the defect and provided a simple fix. The Ubuntu team can patch the scripts or leave them broken. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1745463 Title: Disabling systemd-resolved breaks dhclient resolvconf integration Status in resolvconf package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: To reproduce, mask resolved: sudo systemctl mask systemd-resolved.service ...then disable network-manager for ifupdown interfaces: $cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile dns=default rc-manager=resolvconf [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no ...and reboot. You'll note that resolvconf integration with dhclient is now broken. Interfaces listed in /etc/network/interfaces or /etc/network/interfaces.d/* will not provide DNS configuration in /etc/resolv.conf and /run/resolvconf/interfaces/. This is because /etc/dhcp/dhclient-enter-hooks.d/resolvconf defines "make_resolv_conf()" as a valid function for the BOUND case, but /etc/dhcp/dhclient-enter-hooks.d/resolved undefines it (who's nasty now, eh?) even though resolved is masked. The file existence check in the beginning of /etc/dhcp/dhclient-enter- hooks.d/resolved should be more thorough, i.e. it should ensure that resolved is enabled, rather than simply look for the existence of /lib/systemd/systemd-resolved. This works for me: -if [ -x /lib/systemd/systemd-resolved ] ; then +if [ -x /lib/systemd/systemd-resolved ] && systemctl -q is-enabled systemd-resolved ; then Arguably, /etc/dhcp/dhclient-enter-hooks.d/resolvconf should implement a similar check, looking for /run/resolvconf/enable-updates as a condition for meddling with DNS settings. If desired, I'll file a separate bug for that package. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/resolvconf/+bug/1745463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp