After installing an SSL certificate and switching to HTTPS - error: The site redirected too many times. How to fix?

Question

Apache HTTP Server

Site on Laravel on VDS server Debian 10 + Appache2. After installing SSL certificates and switching the site to HTTPS, an error occurs:
The site has redirected too many times. ERR_TOO_MANY_REDIRECTS

Host File

spoiler

<IfModule mod_ssl.c>
<VirtualHost *:443>
    ServerName site.ru
    ServerAlias www.site.ru
    ServerAdmin [email protected]
    DocumentRoot /var/www/site.ru/public

    <Directory /var/www/site.ru/public>
        Options -Indexes +FollowSymLinks
        AllowOverride All
    </Directory>

    ErrorLog ${APACHE_LOG_DIR}/site.ru-error.log
    CustomLog ${APACHE_LOG_DIR}/site.ru.log combined


SSLEngine on
SSLProtocol all -SSLv2


Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/live/site.ru/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/site.ru/privkey.pem

<FilesMatch "\.(cgi|shtml|phtml|php)$">
  SSLOptions +StdEnvVars
</FilesMatch>

RewriteEngine on
RewriteCond %{SERVER_NAME} =site.ru
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [L,NE,R=permanent]
  
</VirtualHost>
</IfModule>

Everything seems to be correct, in accordance with the instructions, but a cyclic redirect occurs. Perhaps during the configuration, where the server settings were set to HTTP, and now there is a cyclic redirect.

In judging by the messages on the network, the problem is widespread, but none of the proposed solutions helped.

• I ask for help and advice - where to look?
  
• What could be causing the problem and how to solve it?
  

PS I believe the cause of the error occurred during the installation of phpMyAdmin, which I installed according to one of the many instructions. PhpMyAdmin was successfully installed and working, but without a separate host, site.ru/phpmyadmin/ opens. Perhaps somewhere in the cofigs he indicated something ... That's what and where could it be?

Answer 1

All! Problem solved. Perhaps the information will be useful to someone.
The problem was in the features of the hosting where the VDS server was rented - Gino, they provide proxying and port forwarding enabled by default, supposedly for the convenience of users. Which can be simply disabled in the settings.

Answer 2

It’s not very clear why the redirect is left in the ssl part, I would also understand it would redirect from https://www.site.ru to https://site.ru , and looking at the syntax, I see the logic of the following logic (I don’t pretend, guru module rewrite will be corrected) - if SERVER_NAME contains the string site.ru -> redirect to site.ru. (by the way, according to the documentation, the string with "additional syntax" must be quoted)

RewriteEngine on
RewriteCond %{SERVER_NAME} =site.ru
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI } [L,NE,R=permanent]

I would comment out all three lines and twitch Apache.