Configure a server as proxy with apache2

readme.md

1. create file /etc/apache2/sites-available/VIRTUALHOST_NAME.conf
2. sudo a2ensite virtual_host_file_name

• to disable an existing conf file sudo a2dissite virtual_host_file_name

3. copy file in /etc/apache2/sites-enabled/VIRTUALHOST_NAME.conf
4. install ssl module sudo a2enmod ssl
5. install proxy module sudo a2enmod proxy
6. install rewrite module sudo a2enmod rewrite
7. install proxy_connect module sudo a2enmod proxy_connect
8. install proxy_http module sudo a2enmod proxy_http
9. sudo service apache2 reload

Other commands for apache:

• show all modules installed apache2ctl -M
• show logs sudo systemctl status apache2.service

References

• DESIRED_PORT: represent the port where your current local server is running (node/go/etc server)
• URL_ADDRESS: your DNS

example-golang.conf

<VirtualHost *:80>
        # without http or https
        ServerName URL_ADDRESS 

        RewriteEngine on
        RewriteCond %{HTTP_HOST} ^(.+)\.DOMAIN\.com$
        RewriteRule ^/(.*)$ https://%1.DOMAIN.com/$1 [R=301,L]

</VirtualHost>

<IfModule mod_ssl.c>
        <VirtualHost *:443>

                ServerAdmin EMAIL
                # without http or https
                ServerName URL_ADDRESS

                ProxyPreserveHost On
                ProxyPass / http://127.0.0.1:8000/
                ProxyPassReverse / http://127.0.0.1:8000/

                SSLEngine on
                SSLCertificateFile /home/ubuntu/certificates/certificate.crt
                SSLCertificateKeyFile /home/ubuntu/certificates/certificate.key
                SSLCertificateChainFile /home/ubuntu/certificates/certificate.ca.crt

        </VirtualHost>
</IfModule>

example-node.conf

<VirtualHost *:80>
        # without http or https
        ServerName URL_ADDRESS 

        RewriteEngine on
        RewriteCond %{HTTP_HOST} ^(.+)\.DOMAIN\.com$
        RewriteRule ^/(.*)$ https://%1.DOMAIN.com/$1 [R=301,L]

</VirtualHost>

<IfModule mod_ssl.c>
        <VirtualHost *:443>

                ServerAdmin EMAIL
                # without http or https
                ServerName URL_ADDRESS

                ProxyPreserveHost On
                ProxyPass / http://127.0.0.1:3000/
                ProxyPassReverse / http://127.0.0.1:3000/

                SSLEngine on
                SSLCertificateFile /home/ubuntu/certificates/certificate.crt
                SSLCertificateKeyFile /home/ubuntu/certificates/certificate.key
                SSLCertificateChainFile /home/ubuntu/certificates/certificate.ca.crt

        </VirtualHost>
</IfModule>