• Приступая к работе
• Certbot

$ host siteN.mgtu.ru
siteN.mgtu.ru has address 195.19.40.42

• Использование виртуальных хостов

val@val:~$ mkdir siteN.mgtu.ru

val@val:~$ cat siteN.mgtu/index.html

<h1>siteN.mgtu.ru</h1>

vps:~# cat /etc/apache2/sites-available/siteN.mgtu.ru.conf

<VirtualHost *:80>
  ServerName siteN.mgtu.ru
  DocumentRoot /home/val/siteN.mgtu
#  <Directory /home/val/siteN.mgtu>
#    Require all granted
#  </Directory>
</VirtualHost>

vps:~# a2ensite siteN.mgtu.ru

vps:~# apachectl -t

vps:~# systemctl reload apache2

• http://siteN.mgtu.ru

ubuntu# snap install --classic certbot

debian# apt install certbot #python3-certbot-apache

vps:~# certbot certonly --manual -d siteN.mgtu.ru

Enter email address (used for urgent renewal and security notices)
 (Enter 'c' to cancel): Enter
...
You must agree in order to register with the ACME server. Do you agree?
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(Y)es/(N)o: Y
Account registered.
...
Create a file containing just this data:

MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

And make it available on your web server at this URL:

http://siteN.mgtu.ru/.well-known/acme-challenge/NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
...
Press Enter to Continue

• !!! Оставляем эту и открываем новую консоль !!!

val@val:~$ mkdir -p siteN.mgtu/.well-known/acme-challenge/

val@val:~$ cat siteN.mgtu/.well-known/acme-challenge/NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

val@val:~$ curl http://siteN.mgtu.ru/.well-known/acme-challenge/NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

• !!! Возвращаемся в предыдущую консоль !!!

...
Press Enter to Continue

Successfully received certificate.
Certificate is saved at: /etc/letsencrypt/live/siteN.mgtu.ru/fullchain.pem
Key is saved at:         /etc/letsencrypt/live/siteN.mgtu.ru/privkey.pem
...

• Поддержка протокола HTTPS

vps:~# cat /etc/apache2/sites-available/siteN.mgtu.ru.conf

...
<IfModule mod_ssl.c>
  <VirtualHost *:443>
  ServerName siteN.mgtu.ru
  DocumentRoot /home/val/siteN.mgtu
#  <Directory /home/val/siteN.mgtu>
#    Require all granted
#  </Directory>
    SSLEngine on
    SSLCertificateFile /etc/letsencrypt/live/siteN.mgtu.ru/fullchain.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/siteN.mgtu.ru/privkey.pem
  </VirtualHost>
</IfModule>

vps:~# apachectl -t

vps:~# systemctl reload apache2

• https://siteN.mgtu.ru

vps:~# certbot certonly --manual -d siteN.mgtu.ru

Renewing an existing certificate for siteN.mgtu.ru

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Create a file containing just this data:

MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

And make it available on your web server at this URL:

http://siteN.mgtu.ru/.well-known/acme-challenge/NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Press Enter to Continue

val@val:~$ vim siteN.mgtu/.well-known/acme-challenge/NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

val@val:~$ ###curl http://siteN.mgtu.ru/.well-known/acme-challenge/NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

vps:~# service apache2 reload