Byung-Hee HWANG <[email protected]> writes:
> Hellow!
>
> I am running postfix server under Ubuntu 18.04 LTS at Google Compute
> Engine. The hostname is <<yw-0919.doraji.xyz>>, open port is 25 only.
>
> The server conf are bellow:
> <https://gitlab.com/soyeomul/Gnus/-/raw/karma/DKIM/smtp-conf.yw-0919>
>
> So now question. After i added 'permit_dnswl_client list.dnswl.org',
> very often i see these pattern's logs:
>
> #+begin_src text (postfix log)
> May 8 10:24:14 bionic190316003 postfix/smtpd[10918]: connect from
> lists.gnu.org[209.51.188.17]
> May 8 10:24:15 bionic190316003 postfix/smtpd[10918]: Anonymous TLS
> connection established from lists.gnu.org[209.51.188.17]: TLSv1.2 with cipher
> ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
> May 8 10:24:25 bionic190316003 postfix/smtpd[10918]: warning:
> 17.188.51.209.list.dnswl.org: RBL lookup error: Host or domain name not
> found. Name service error for name=17.188.51.209.list.dnswl.org type=A: Host
> not found, try again
> May 8 10:24:25 bionic190316003 postfix/smtpd[10918]: 810D83F064:
> client=lists.gnu.org[209.51.188.17]
> May 8 10:24:25 bionic190316003 postfix/cleanup[10965]: 810D83F064:
> message-id=<87y1zcqq5e.fsf@localhost>
> May 8 10:24:25 bionic190316003 postfix/qmgr[32274]: 810D83F064:
> from=<[email protected]>, size=7315, nrcpt=1
> (queue active)
> May 8 10:24:25 bionic190316003 postfix/cleanup[10965]: 93B323F06A:
> message-id=<87y1zcqq5e.fsf@localhost>
> May 8 10:24:25 bionic190316003 postfix/qmgr[32274]: 93B323F06A:
> from=<[email protected]>, size=7448, nrcpt=1
> (queue active)
> May 8 10:24:25 bionic190316003 postfix/local[10966]: 810D83F064:
> to=<[email protected]>, relay=local, delay=10, delays=10/0/0/0, dsn=2.0.0,
> status=sent (forwarded as 93B323F06A)
> May 8 10:24:25 bionic190316003 postfix/qmgr[32274]: 810D83F064: removed
> #+end_src
>
> As shown above log, the line 'RBL lookup error' is normal? Can i ignore that?
>
> And the others are OK.
Hello all again!
I just updated /etc/resolv.conf stuff.
Exactly, i don't know the reason why it works.
Anyway it works.
The edited stuff:
#+begin_src text (shell command output)
soyeomul@bionic190316003:~$ sudo ls -ld /etc/resolv.*
lrwxrwxrwx 1 root root 15 May 9 03:24 /etc/resolv.conf -> resolv.conf.one
-rw-r--r-- 1 root root 24 May 9 04:42 /etc/resolv.conf.one
soyeomul@bionic190316003:~$ sudo cat /etc/resolv.conf.one
nameserver 168.126.63.1
soyeomul@bionic190316003:~$ sudo cat /etc/resolv.conf
nameserver 168.126.63.1
soyeomul@bionic190316003:~$
soyeomul@bionic190316003:~$ sudo systemd-resolve --status
Global
DNS Servers: 168.126.63.1
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:~$
soyeomul@bionic190316003:/etc$ sudo diff -uNr hosts.orig hosts
--- hosts.orig 2022-02-14 13:15:31.262460939 +0000
+++ hosts 2022-05-09 03:08:44.797121524 +0000
@@ -1,5 +1,7 @@
::1 localhost
127.0.0.1 localhost
+127.0.0.1 bionic190316003
+127.0.0.1 bionic190316003.us-west1-b.c.elite-flow-234711.internal
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
@@ -9,3 +11,5 @@
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
169.254.169.254 metadata.google.internal metadata
+
+# 2022-05-09
soyeomul@bionic190316003:/etc$
#+end_src
"168.126.63.1" is located in South Korea. Maybe Korea Telecom?
Thanks again all ^^^
(Bastian, Dominic, Bjoern, ...)
Sincerely, Linux fan Byung-Hee
--
^고맙습니다 _白衣從軍_ 감사합니다_^))//
