Re: dnswl.org lookup error

[Byung-Hee HWANG]

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_^))//