zkk / ARUBA - Posta Server

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ssh debian@31.14.142.65
su -
apt update
apt upgrade
shutdown -r now

cd /root/
cp .ssh/authorized_keys .ssh/authorized_keys.bak
vi .ssh/authorized_keys

PermitRootLogin yes
PasswordAuthentication no
ChallengeResponseAuthentication no
UsePAM yes

PermitRootLogin yes
PasswordAuthentication no
KbdInteractiveAuthentication no
UsePAM yes

systemctl reload sshd.service

ufw status numbered
ufw allow 80
ufw allow 443
apt install nginx

mv /var/www/html /var/www/home
mv /var/www/home/index.nginx-debian.html /var/www/home/index.html
cp /etc/nginx/sites-vailable/default /etc/nginx/sites-availabe/home
vi /etc/nginx/sites-available/home
rm /etc/nginx/sites-enabled/default
ln -s /etc/nginx/sites-available/home /etc/nginx/sites-enabled/
systemctl restart nginx.service

#
# Home page
#
server {
        listen 80;
        listen [::]:80;
        root /var/www/home;
        index index.html;
        server_name www.max73.net max73.net;
        location / {
                try_files $uri $uri/ =404;
        }
}

Which names would you like to activate HTTPS for?
We recommend selecting either all domains, or all domains in a VirtualHost/server block.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1: max73.net
2: www.max73.net
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter 'c' to cancel): 
Requesting a certificate for max73.net and www.max73.net

Certbot failed to authenticate some domains (authenticator: nginx). The Certificate Authority reported these problems:
  Domain: max73.net
  Type:   dns
  Detail: DNS problem: looking up A for max73.net: DNSSEC: DNSKEY Missing: validation failure <max73.net. A IN>: No DNSKEY record from 81.2.232.15 for key max73.net. while building chain of trust; DNS problem: looking up AAAA for max73.net: DNSSEC: DNSKEY Missing: validation failure <max73.net. AAAA IN>: No DNSKEY record from 185.8.48.79 for key max73.net. while building chain of trust

  Domain: www.max73.net
  Type:   dns
  Detail: DNS problem: looking up A for www.max73.net: DNSSEC: DNSKEY Missing: validation failure <www.max73.net. A IN>: No DNSKEY record from 185.43.208.79 for key max73.net. while building chain of trust; DNS problem: looking up AAAA for www.max73.net: DNSSEC: DNSKEY Missing: validation failure <www.max73.net. AAAA IN>: No DNSKEY record from 81.2.232.15 for key max73.net. while building chain of trust

Hint: The Certificate Authority failed to verify the temporary nginx configuration changes made by Certbot. Ensure the listed domains point to this nginx server and that it is accessible from the internet.

Some challenges have failed.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.