How to Automatically Redirect Http to Https on Apache Servers?

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^ 

or

Searched for apache redirect http to https and landed here. This is what i did on ubuntu:

1) Enable modules

sudo a2enmod rewrite
sudo a2enmod ssl

2) Edit your site config

Edit file

/etc/apache2/sites-available/000-default.conf

Content should be:

<VirtualHost *:80>
    RewriteEngine On
    RewriteCond %{HTTPS} off
    RewriteRule (.*) 
</VirtualHost>

<VirtualHost *:443>
    SSLEngine on
    SSLCertificateFile    <path to your crt file>
    SSLCertificateKeyFile   <path to your private key file>

    # Rest of your site config
    # ...
</VirtualHost>

• Note that the SSL module requires certificate. you will need to specify existing one (if you bought one) or to generate a self-signed certificate by yourself.

3) Restart apache2

sudo service apache2 restart

Using mod_rewrite is not the recommended way instead use virtual host and redirect.

In case, if you are inclined to do using mod_rewrite:

RewriteEngine On
# This will enable the Rewrite capabilities

RewriteCond %{HTTPS} !=on
# This checks to make sure the connection is not already HTTPS

RewriteRule ^/?(.*)  [R,L]
# This rule will redirect users from their original location, to the same 
location but using HTTPS.
# i.e.   to 
# The leading slash is made optional so that this will work either in
# httpd.conf or .htaccess context

Reference: Httpd Wiki - RewriteHTTPToHTTPS

If you are looking for a 301 Permanent Redirect, then redirect flag should be as,

 R=301

so the RewriteRule will be like,

RewriteRule ^/?(.*)  [R=301,L]

Actually, your topic is belongs on but you can still try to check these .htaccess directives:

RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule ^(.*) 

If you have Apache2.4 check 000-default.conf - remove DocumentRoot and add

Redirect permanent / 

I needed this for something as simple as redirecting all http traffic from the default apache home page on my server to one served over https.

Since I'm still quite green when it comes to configuring apache, I prefer to avoid using mod_rewrite directly and instead went for something simpler like this:

<VirtualHost *:80>
  <Location "/">
     Redirect permanent ""
  </Location>
</VirtualHost>

<VirtualHost *:443>
  DocumentRoot "/var/www/html"
  SSLEngine on
  ...
</VirtualHost>

I like this because it allowed me to use apache variables, that way I didn't have to specify the actual host name since it's just an IP address without an associated domain name.

References:

This code work for me.

# ----------port 80----------
RewriteEngine on
# redirect http non-www to https www
RewriteCond %{HTTPS} off
RewriteCond %{SERVER_NAME} =example.com
RewriteRule ^  [END,QSA,R=permanent]

# redirect http www to https www
RewriteCond %{HTTPS} off
RewriteCond %{SERVER_NAME} =
RewriteRule ^  [END,QSA,R=permanent]

# ----------port 443----------
RewriteEngine on
# redirect https non-www to https www
RewriteCond %{SERVER_NAME} !^www\.(.*)$ [NC]
RewriteRule ^  [END,QSA,R=permanent]

Server version: Apache/2.4.29 (Ubuntu)

After long search on the web and in the official documentation of apache, the only solution that worked for me came from /usr/share/doc/apache2/README.Debian.gz

To enable SSL, type (as user root):

    a2ensite default-ssl
    a2enmod ssl

In the file /etc/apache2/sites-available/000-default.conf add the

Redirect "/" ""

<VirtualHost *:80>

    #ServerName 
    DocumentRoot /var/www/owncloud
    Redirect "/" ""

That's it.

P.S: If you want to read the manual without extracting:

gunzip -cd /usr/share/doc/apache2/README.Debian.gz

Please try this one in apache Virtualhosting configuration and then reload apache service

RewriteEngine On

RewriteCond %{HTTPS} off


RewriteRule ^ 

This worked for me:

RewriteCond %{HTTPS} =off
RewriteRule ^  [QSA,L,R=301]

for me this worked

RewriteEngine on
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule ^(.*)$  [R=301,L]