Arch Linux

freetz

Member

Registered: 2009-12-05

Posts: 6

systemd-resolved flooded with "Switching to DNS server" messages

Hi everyone,

since a few weeks my journal gets filled with approx. 100 messages of the following:

Jan 02 21:23:27 irata systemd-resolved[504]: Switching to DNS server 46.38.225.230 for interface ens3.
Jan 02 21:23:32 irata systemd-resolved[504]: Switching to DNS server 46.38.252.230 for interface ens3.
Jan 02 21:23:37 irata systemd-resolved[504]: Switching to DNS server 46.38.225.230 for interface ens3.
Jan 02 21:23:43 irata systemd-resolved[504]: Switching to DNS server 46.38.252.230 for interface ens3.
Jan 02 21:23:48 irata systemd-resolved[504]: Switching to DNS server 46.38.225.230 for interface ens3.
Jan 02 21:23:58 irata systemd-resolved[504]: Switching to DNS server 46.38.252.230 for interface ens3.
Jan 02 21:24:03 irata systemd-resolved[504]: Switching to DNS server 46.38.225.230 for interface ens3.
Jan 02 21:24:09 irata systemd-resolved[504]: Switching to DNS server 46.38.252.230 for interface ens3.

This back-and-forth switching between the DNS servers occurs across the day, but in this 5 seconds interval mostly in the evening.

Perhaps also of relevance might be the following entries:

Jan 02 13:44:52 irata systemd-resolved[504]: Grace period over, resuming full feature set (UDP+EDNS0+DO+LARGE) for DNS server 46.38.252.230.
...
Jan 02 16:00:57 irata systemd-resolved[504]: Using degraded feature set (UDP+EDNS0+DO) for DNS server 46.38.252.230.

I can't find more detailed information in the logs, but maybe someone else has had this problem before and knows a solution? Is it a problem of my hosting provider or something I can address within Arch?

Thanks in advance,

F.