configure SSL HTTPS Certification for Apache2 Web server from Cloudflare Linux

• Before reaching in order to configure HTTPS in Apache2, we can setup an VPS running on Linux. Like the example, VEESP is one of affordable VPS price to implement.

• The next step, install apache2 will take so long if you are a newbie. Hence, let refere available resource to overcome the step. Using the syntax as below to determine if Apache is installed on a system?

dpkg --get-selections | grep apache

• Go to etc/apache2/certs and you can see apache2-selfsigned.crt and apache-selfsigned.key in the certs and private folder.

SSLEngine on
SSLCertificateFile /etc/ssl/certs/apache-selfsigned.crt
SSLCertificateKeyFile /etc/ssl/private/apache-selfsigned.key

• Using the /etc/hosts file for custom domains during development.

root@chatbox:/etc# cat hosts
# Generated by SolusVM       localhost localhost.localdomain
::1     localhost localhost.localdomain flagtickgroup.com

• Upon successfully change /etc/hosts and clone 000-default.conf into new file named flagtickgroup.com.conf.

<VirtualHost *:80>
        # The ServerName directive sets the request scheme, hostname and port that
        # the server uses to identify itself. This is used when creating
        # redirection URLs. In the context of virtual hosts, the ServerName
        # specifies what hostname must appear in the request's Host: header to
        # match this virtual host. For the default virtual host (this file) this
        # value is not decisive as it is used as a last resort host regardless.
        # However, you must set it for any further virtual host explicitly.
        #ServerName www.example.com

        ServerAdmin webmaster@localhost
        ServerName flagtickgroup.com

        ProxyRequests Off
        ProxyPreserveHost On
        ProxyVia Full

        <Proxy *>
            Require all granted

        ProxyPass / http://localhost:3000/
        ProxyPassReverse / http://localhost:3000/

        ServerAlias www.flagtickgroup.com
        DocumentRoot /var/www/chatbox

        ServerName flagtickgroup.com
        Redirect / https://flagtickgroup.com

        <Directory "/var/www/chatbox">
            AllowOverride All

        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
        # error, crit, alert, emerg.
        # It is also possible to configure the loglevel for particular
        # modules, e.g.
        #LogLevel info ssl:warn

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        # For most configuration files from conf-available/, which are
        # enabled or disabled at a global level, it is possible to
        # include a line for only one particular virtual host. For example the
        # following line enables the CGI configuration for this host only
        # after it has been globally disabled with "a2disconf".
        #Include conf-available/serve-cgi-bin.conf
<VirtualHost *:443>
   ServerName flagtickgroup.com
   DocumentRoot /var/www/chatbox

   ProxyPass / http://localhost:3000/
   ProxyPassReverse / http://localhost:3000/

   SSLEngine on
   SSLCertificateFile /etc/ssl/certs/apache-selfsigned.crt
   SSLCertificateKeyFile /etc/ssl/private/apache-selfsigned.key
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

• Check the website if it is using SSL using CURL on Linux

* Trying
* Connected to flagtickgroup.com ( port 443 (#0)
* schannel: disabled automatic use of client certificate
* ALPN: offers http/1.1
* ALPN: server accepted http/1.1
> GET / HTTP/1.1
> Host: flagtickgroup.com
> User-Agent: curl/7.83.1
> Accept: */*
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Date: Thu, 23 Feb 2023 07:11:48 GMT
< Content-Type: text/html; charset=utf-8
< Transfer-Encoding: chunked
< Connection: keep-alive
< X-Powered-By: Express
< Access-Control-Allow-Origin: *
< Via: 1.1 flagtickgroup.com (Apache/2.4.41)
< CF-Cache-Status: DYNAMIC
< Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com"}],"group":"cf-nel","max_age":604800}
< NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
< Server: cloudflare
< CF-RAY: 79de2645cb4004b7-HKG
< alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
<h1>Your server has start from deployment!!</h1>* Connection #0 to host flagtickgroup.com left intact

• To active SSL in apache2, you will run the following command:

sudo a2enmod ssl && sudo service apache2 restart

In opposite, you can disable ssl in apache2.

sudo a2dismod ssl && sudo service apache2 restart

• If you integrate CDN at middle layer and normally encounter issue as below:

How to resolve issue? The problem aim at Cloudflare if SSL/TLS has wrong configuration. How to resolve issue? The problem aim at Cloudflare if SSL/TLS has wrong configuration. Navigate to DNS/Records and observe configured for custom domain flagtickgroup.com.

• Go to SSL/TLS and select option. If option is Full and SSL activated between Website Browser and Website Server.

• Notice that you need to remove /sites-enable/flagtickgroup.com.conf to remove cache after change options in SSL/TLS.

• Examine website is running on SSL or non-SSL.

curl --verbose https://ebigmall.com
curl --verbose http://ebigmall.com
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