Apache2 [SOLVED]: Apache redirect from ssl subdomain not working

Apache2 [SOLVED]: Apache redirect from ssl subdomain not working

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  • #36893



    I am trying to redirect all traffic to https and all subdomains to main domain and can’t get it right. I am using Ubuntu 14.04 with latest apache2.

    I set up virtualhost for port 80 to redirect all traffic to https:

    <VirtualHost *:80>
    ServerName example.com
    Redirect permanent / https://example.com/

    and setup ssl virtualhost to redirect all subdomains to main domain:

        <IfModule mod_ssl.c>
    <VirtualHost *:443>
         ServerAdmin admin@example.com
         ServerName example.com
         ServerAlias *.example.com
         DocumentRoot /var/www/example.com/public_html/
         ErrorLog /var/www/example.com/logs/error.log
         CustomLog /var/www/example.com/logs/access.log combined
    Include /etc/letsencrypt/options-ssl-apache.conf
    Include /etc/letsencrypt/options-ssl-apache.conf
    Include /etc/letsencrypt/options-ssl-apache.conf
    SSLCertificateFile /etc/letsencrypt/live/example.com-0001/cert.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/example.com-0001/privkey.pem
    Include /etc/letsencrypt/options-ssl-apache.conf
    SSLCertificateChainFile /etc/letsencrypt/live/example.com-0001/chain.pem
    Redirect permanent / https://example.com

    Result is as follows:

    WORKING http://example.com to https://example.com

    WORKING http://anything.example.com to https://example.com

    NOT WORKING https://anything.example.com to https://example.com

    Question is: how I redirect ssl subdomain to main domain?

    Please tell me what am I doing wrong.

    Thanks a lot.



    Accepted AnswerAnswer

    Given that it appears that Let’s Encrypt will only begin issuing wildcard certificates in January 2018, and your server setup is earlier, it appears that you are not using a wildcard SSL certificate.

    In order to connect with https, even to redirect or process your “alias,” you have to have a valid SSL certificate for whatever domain the client sends.

    The SSL handshake takes place before anything in the Apache server is processed. In other words, if you are not using a wildcard SSL certificate, the SSL handshake will fail for https://anything.example.com before the Apache configuration file ever has a chance to process the alias.

    Whatever else may be an issue, this must be corrected before any further diagnosis, if required, can be had. For example, if the desired behavior is that the https://anything.example.com be “redirected” to http://example.com you will probably have to use a mod_rewrite condition match as the RedirectMatch directive is only matched against the URL-path, and the use of ServerAlias will create the necessary match for handling the initial query, but will not attempt to “rewrite” or “redirect” the query to another desired URL.

    Source: https://serverfault.com/questions/890207/apache-redirect-from-ssl-subdomain-not-working
    Author: Colt
    Creative Commons License
    This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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