Package: systemd-resolved
Severity: wishlist
Dear Maintainer,
Currently, when systemd-resolved is installed on systems with network-manager,
DNS resolution stops working until a reboot (or until NM brings down and up a
connection with global DNS). This is because 1) systemd-resolved package
correctly sets a link from /etc/resolv.conf to /run/systemd/resolve/stub-
resolv.conf 2) Currently known DNS servers at the time of package installation
are not loaded into systemd-resolved and 3) Understandably, Debian has removed
fallback DNS servers in systemd-resolved (using --dns-server=''). In case
systemd-networkd is the network configuration tool instead of network-manager,
systemd-resolved will pickup DNS servers from .network configuration files (and
possibly from DNS servers known to systemd-networkd via DHCP?).
On desktops and mobiles where network-manager is common, this experience can be
improved by loading DNS servers and search domains known to network-manager
(static or obtained from DHCP) into systemd-resolved. Postinst script ought to
do something like:
if [ -d /run/NetworkManager ]; then
nmcli general reload dns-rc
fi
FreedomBox is switching to systemd-resolved from resolvconf. These machines
shall automatically upgrade and can't become unreachable over network or
request user intervention. Reboots, when necessary, can only be done once a day
at a fixed time. We are running 'reload dns-rc' after installing systemd-
resolved. This change will also help if/when systemd-resolved becomes default
in Debian and users upgrade from a stable release to the next.
Thank you for maintaining systemd packaging,
--
Sunil Mohan Adapa
-- System Information:
Debian Release: 12.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-23-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND
Locale: LANG=en_IN.UTF-8, LC_CTYPE=en_IN.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages systemd-resolved depends on:
ii dbus [default-dbus-system-bus] 1.14.10-1~deb12u1
ii libc6 2.36-9+deb12u7
ii libssl3 3.0.11-1~deb12u2
ii libsystemd-shared 252.22-1~deb12u1
ii systemd 252.22-1~deb12u1
Versions of packages systemd-resolved recommends:
ii libnss-myhostname 252.22-1~deb12u1
pn libnss-resolve <none>
Versions of packages systemd-resolved suggests:
ii policykit-1 122-3
ii polkitd 122-3
