How to remove /index.html from the main page?

Question

Database design

How to remove /index.html from the main page of the site using HTACCESS?
Here is https://alpsity.ru/ . It opens like this https://alpsity.ru/ and like this https://alpsity.ru/index.html
And you need something to open only like this https://alpsity.ru/ , and from this the state url https:// alpsity.ru/index.html directed at https://alpsity.ru/

Answer 1

Enter:
1. Separate concepts of definitions from groups (separately): "Symptom", "Diagnosis".
2. Determine the dependencies of the concepts among themselves in these groups - form "trees" of symptoms (for different diseases) and "trees" of diagnoses (also for different diseases).
3. Determine the relationship between symptom trees and diagnosis trees.
4. Define "Treatment" lists for each diagnosis tree - this is the order of actions/procedures in treating a particular diagnosis.
5. And now in these lists - indicate the required coefficients for each action / procedure.

Answer 2

Here is an example: for http in htaccess

RewriteEngine On

RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.html\ HTTP/
RewriteRule ^index\.html$ http://example.com/ [R=301,L]

RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.php\ HTTP/
RewriteRule ^index\.php$ http://example.com/ [R=301,L]

You can also use PHP:

if( $_SERVER['REQUEST_URI'] == "/index.php" ) {
 header( "Location: /", TRUE, 301 );
 exit();
 }