Package: systemd
Version: 246.4-1
Severity: normal
File: /usr/bin/resolvectl
Dear Maintainer,
Today we migrated a forum from one server to another hence its IP
address changed. Trying to access the new home of this service I
noticed that I continuously stumbling upon the old one (I know the DNS
propagation takes some time but it seemed long).
Anyway here's the output of my musings with resolvectl:
nicoe@mirabelle:~% resolvectl flush-caches
nicoe@mirabelle:~% resolvectl status
Global
LLMNR setting: yes
MulticastDNS setting: yes
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
Fallback DNS Servers: 80.67.169.12
2001:910:800::12
1.1.1.1
2606:4700:4700::1111
8.8.8.8
2001:4860:4860::8888
Link 3 (wlan0)
Current Scopes: DNS LLMNR/IPv4 LLMNR/IPv6
DefaultRoute setting: yes
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
Current DNS Server: fd00::e228:6dff:fe97:ceb
DNS Servers: 192.168.1.1
fd00::e228:6dff:fe97:ceb
Link 4 (docker0)
Current Scopes: none
DefaultRoute setting: no
LLMNR setting: yes
MulticastDNS setting: no
DNSOverTLS setting: no
DNSSEC setting: no
DNSSEC supported: no
nicoe@mirabelle:~% resolvectl query forum.rscl.be
forum.rscl.be: 91.121.64.208 -- link: wlan0
2001:41d0:1:73d0::1 -- link: wlan0
-- Information acquired via protocol DNS in 7.3ms.
-- Data is authenticated: no
nicoe@mirabelle:~% dig @fd00::e228:6dff:fe97:ceb +short forum.rscl.be
91.121.132.126
nicoe@mirabelle:~% dig @192.168.1.1 +short forum.rscl.be
91.121.132.126
As you can see the DNS result obtained with dig differs from the one
of resolvectl although AFAIU systemd-resolved is using the wlan0 link
and thus the same DNS servers.
This is quite puzzling and I'd like to understand what's going on.
I tried restarting the service instead of flushing the caches and it
results in the same behaviour.
Regards,
-- Package-specific info:
-- System Information:
Debian Release: bullseye/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 5.7.0-3-amd64 (SMP w/8 CPU threads)
Locale: LANG=fr_BE.UTF-8, LC_CTYPE=fr_BE.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages systemd depends on:
ii adduser 3.118
ii libacl1 2.2.53-8
ii libapparmor1 2.13.4-3
ii libaudit1 1:2.8.5-3+b1
ii libblkid1 2.36-3
ii libc6 2.31-3
ii libcap2 1:2.43-1
ii libcrypt1 1:4.4.17-1
ii libcryptsetup12 2:2.3.4-1
ii libgcrypt20 1.8.6-2
ii libgnutls30 3.6.14-2+b1
ii libgpg-error0 1.38-2
ii libidn2-0 2.3.0-1
ii libip4tc2 1.8.5-3
ii libkmod2 27+20200310-2
ii liblz4-1 1.9.2-2
ii liblzma5 5.2.4-1+b1
ii libmount1 2.36-3
ii libpam0g 1.3.1-5
ii libpcre2-8-0 10.34-7
ii libseccomp2 2.4.3-1+b1
ii libselinux1 3.1-2
ii libsystemd0 246.4-1
ii libzstd1 1.4.5+dfsg-4
ii mount 2.36-3
ii openntpd [time-daemon] 1:6.2p3-4+b1
ii util-linux 2.36-3
Versions of packages systemd recommends:
ii dbus 1.12.20-1
Versions of packages systemd suggests:
ii policykit-1 0.105-29
pn systemd-container <none>
Versions of packages systemd is related to:
pn dracut <none>
ii initramfs-tools 0.137
pn libnss-systemd <none>
ii libpam-systemd 246.4-1
ii udev 246.4-1
-- Configuration Files:
/etc/systemd/resolved.conf changed:
[Resolve]
FallbackDNS=80.67.169.12 2001:910:800::12 1.1.1.1 2606:4700:4700::1111 8.8.8.8
2001:4860:4860::8888
DNSSEC=no
-- no debconf information
