Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: mail.izbadeluxe.ru
I ran this command: ./letsencrypt-auto certonly --standalone -d mail.izbadeluxe.ru
It produced this output:
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for mail.izbadeluxe.ru
Waiting for verification...
Challenge failed for domain mail.izbadeluxe.ru
http-01 challenge for mail.izbadeluxe.ru
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
-
The following errors were reported by the server:
Domain: mail.izbadeluxe.ru
Type: unauthorized
Detail: Invalid response from
http://mail.izbadeluxe.ru/.well-known/acme-challenge/NIcad5BEuCZkZeWAf54kkFhO46XNTy0I_Pc4Ns6fw7Y
[62.173.128.10]: "\r\n401 Authorization
Required\r\n<body
bgcolor="white">\r\n401 Authorization Required</"
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
alex@T480 ~ nslookup mail.izbadeluxe.ru 1 ↵ 1069 10:29:15
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
Name: mail.izbadeluxe.ru
Address: 62.173.128.10
alex@T480 ~ 
1070 11:14:21
alex@T480 ~ dig mail.izbadeluxe.ru 1070 11:14:46
; <<>> DiG 9.16.1-Ubuntu <<>> mail.izbadeluxe.ru
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51397
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;mail.izbadeluxe.ru. IN A
;; ANSWER SECTION:
mail.izbadeluxe.ru. 268 IN A 62.173.128.10
;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sun Nov 29 11:14:52 MSK 2020
;; MSG SIZE rcvd: 63
My web server is (include version): nginx zimbra
The operating system my web server runs on is (include version): Ubuntu 16.04.3 LTS
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don't know): yes
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 0.31.0
Please help to understand how i can fix it because DNS working fine but certbot cant update certificate.