Dear Bjoern,
Bjoern Franke <b...@schafweide.org> writes:
> Hi,
>
>> I think your system is using systemd-resolved for DNS lookups; this
>> hands off the real work of resolving to public resolvers, so RBLs will
>> block your lookups. This is a normal setup for a systemd-based distro
>> but is not appropriate for a mail server.
>>
>
> We don't know if systemd-resolved uses public resolvers until he shows
> us the output of reseolvectl.
Thanks for comments!
#+begin_src text (shell command output)
soyeomul@bionic190316003:~$ sudo systemd-resolve --status
Global
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test
Link 2 (ens4)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 169.254.169.254
DNS Domain: us-west1-b.c.elite-flow-234711.internal
c.elite-flow-234711.internal
google.internal
soyeomul@bionic190316003:~$ date
Mon May 9 01:52:31 UTC 2022
soyeomul@bionic190316003:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.6 LTS
Release: 18.04
Codename: bionic
soyeomul@bionic190316003:~$
#+end_src
Any comments and advice welcome!
> Regards
> Bjoern
>
Sincrely, Linux fan Byung-Hee
--
^고맙습니다 _白衣從軍_ 감사합니다_^))//
