Package: chrony Version: 4.5-1 Severity: wishlist Dear Maintainer,
I saw this change in the 4.4 release notes: * Refresh address of NTP sources periodically That made me think it could also be useful to support some "pre-seeding" and/or caching of DNS results. I usually configure a few sources via IP addresses, just in case DNS is slow or unavailable at boot time (perhaps DNSSEC is failing due to a terribly inaccurate clock). But IP addresses could change without me noticing, and some server operators request that DNS be used whenever possible. Maybe it should be possible to specify fallback addresses, to be used in the case of a temporary lookup failure; for example, server ntp.example.net ip=2001:db8::7b ip=192.0.2.123 And I've already got .nts files in /var/lib/chrony for serveral sources, which makes me think there could also be files caching the last-known IP addresses for each server (possibly with expiry times and enabled via an option such as "cacheaddr"). For servers with NTS, that data appears to already be available. - Michael -- System Information: Debian Release: trixie/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 6.5.0-5-amd64 (SMP w/32 CPU threads; PREEMPT) Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages chrony depends on: ii adduser 3.137 ii init-system-helpers 1.66 ii iproute2 6.6.0-1 ii libc6 2.37-13 ii libcap2 1:2.66-4 ii libedit2 3.1-20230828-1 ii libgnutls30 3.8.2-1 ii libnettle8 3.9.1-2 ii libseccomp2 2.5.4-2+b1 ii tzdata-legacy 2023c-11 ii ucf 3.0043+nmu1 chrony recommends no packages. Versions of packages chrony suggests: ii bind9-dnsutils [dnsutils] 1:9.19.17-1 pn networkd-dispatcher <none> -- no debconf information
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