Not mentioned here yet: systemd-resolved is much less flexible than resolvconf.
With resolvconf, I can specify an interface order. With resolvconf, I can specify custom head/tail parts, allowing me to insert custom options. Please, give us back our resolvconf. -- 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/2067897 Title: Ubuntu 24.04 does not install resolvconf uses systemd-resolved instead which is broken Status in systemd package in Ubuntu: Confirmed Bug description: # lsb_release -rd No LSB modules are available. Description: Ubuntu 24.04 LTS Release: 24.04 # dpkg --status systemd Package: systemd Status: install ok installed Priority: important Section: admin Installed-Size: 11728 Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Version: 255.4-1ubuntu8 # dpkg --status systemd-resolved Package: systemd-resolved Status: install ok installed Priority: important Section: admin Installed-Size: 884 Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Source: systemd Version: 255.4-1ubuntu8 Replaces: resolvconf, systemd (<< 251.3-2~) Provides: resolvconf WHAT HAPPENS: # /sbin/resolvconf -a lo.ipsec Dropped protocol specifier '.ipsec' from 'lo.ipsec'. Using 'lo' (ifindex=1). nameserver 8.8.8.8 Failed to set DNS configuration: Unit dbus-org.freedesktop.network1.service not found. background, using strongswan vpn (swanctl) the error: installing DNS server 192.168.170.10 via resolvconf 2024-06-03T12:22:51.802864+02:00 tester213 charon-systemd[3121]: resolvconf: Dropped protocol specifier '.ipsec' from 'lo.ipsec'. Using 'lo' (ifindex=1). 2024-06-03T12:22:51.809365+02:00 tester213 dbus-daemon[714]: [system] Activating via systemd: service name='org.freedesktop.network1' unit='dbus-org.freedesktop.network1.service' requested by ':1.115' (uid=0 pid=3161 comm="/sbin/resolvconf -a lo.ipsec" label="unconfined") 2024-06-03T12:22:51.809660+02:00 tester213 dbus-daemon[714]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.network1.service': Unit dbus-org.freedesktop.network1.service not found. 2024-06-03T12:22:51.810206+02:00 tester213 charon-systemd[3121]: resolvconf: Failed to set DNS configuration: Unit dbus-org.freedesktop.network1.service not found. 2024-06-03T12:22:51.811158+02:00 tester213 charon-systemd[3121]: adding DNS server failed 2024-06-03T12:22:51.811282+02:00 tester213 charon-systemd[3121]: installing DNS server 192.168.170.10 via resolvconf 2024-06-03T12:22:51.828246+02:00 tester213 charon-systemd[3121]: resolvconf: Dropped protocol specifier '.ipsec' from 'lo.ipsec'. Using 'lo' (ifindex=1). 2024-06-03T12:22:51.830988+02:00 tester213 dbus-daemon[714]: [system] Activating via systemd: service name='org.freedesktop.network1' unit='dbus-org.freedesktop.network1.service' requested by ':1.116' (uid=0 pid=3165 comm="/sbin/resolvconf -a lo.ipsec" label="unconfined") 2024-06-03T12:22:51.831891+02:00 tester213 dbus-daemon[714]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.network1.service': Unit dbus-org.freedesktop.network1.service not found. 2024-06-03T12:22:51.833400+02:00 tester213 charon-systemd[3121]: resolvconf: Failed to set DNS configuration: Unit dbus-org.freedesktop.network1.service not found. 2024-06-03T12:22:51.836087+02:00 tester213 charon-systemd[3121]: adding DNS server failed 2024-06-03T12:22:51.836233+02:00 tester213 charon-systemd[3121]: handling INTERNAL_IP4_DNS attribute failed 2024-06-03T12:22:51.836297+02:00 tester213 charon-systemd[3121]: installing DNS server 192.168.170.10 via resolvconf 2024-06-03T12:22:51.852643+02:00 tester213 charon-systemd[3121]: resolvconf: Dropped protocol specifier '.ipsec' from 'lo.ipsec'. Using 'lo' (ifindex=1). 2024-06-03T12:22:51.854550+02:00 tester213 dbus-daemon[714]: [system] Activating via systemd: service name='org.freedesktop.network1' unit='dbus-org.freedesktop.network1.service' requested by ':1.117' (uid=0 pid=3169 comm="/sbin/resolvconf -a lo.ipsec" label="unconfined") 2024-06-03T12:22:51.854995+02:00 tester213 dbus-daemon[714]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.network1.service': Unit dbus-org.freedesktop.network1.service not found. 2024-06-03T12:22:51.855363+02:00 tester213 charon-systemd[3121]: resolvconf: Failed to set DNS configuration: Unit dbus-org.freedesktop.network1.service not found. 2024-06-03T12:22:51.856505+02:00 tester213 charon-systemd[3121]: adding DNS server failed 2024-06-03T12:22:51.857409+02:00 tester213 charon-systemd[3121]: handling INTERNAL_IP4_DNS attribute failed WHAT SHOULD HAPPEN : the vpn dns server should be added without an error why can`t I install plain resolvconf which was working perfectly fine in Ubuntu 22.04 (tried to use the binary of 2204, the issue persists, the culprit is systemd in 2404)? 24.04 forces me to use systemd-resolved which does not work as expected. 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