Config port Node in Apache httpd.config/vhost.config

vhost.config

ServerName `YOURSERERIP - 192.123.16.789`

# Listen `YOURPORT - 4200`
<VirtualHost `DOMAIN - YOURDOMAIN.COM`:*>
    ServerAdmin `YOURE MAIL - yourmai@email.com`
    ServerName `DOMAIN - YOURDOMAIN.COM`
    ServerAlias `DOMAIN - YOURDOMAIN.COM`

    ProxyRequests Off
    ProxyVia Full

    <Proxy *>
        Require all granted
    </Proxy>

    SSLEngine on
    SSLProtocol all
    SSLCertificateFile /etc/letsencrypt/live/`DOMAIN - YOURDOMAIN.COM`/fullchain.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/`DOMAIN - YOURDOMAIN.COM`/privkey.pem

    <Location />
        ProxyPreserveHost On
        ProxyPass http://localhost:`YOURPORT - 4200`/
        ProxyPassReverse http://localhost:`YOURPORT - 4200`/
    </Location>

    DocumentRoot /var/www/html/`YOURfolder - domain.com`
    <Directory />
        Options -Indexes +FollowSymLinks
        AllowOverride None
        Require all granted
    </Directory>

    ErrorLog /var/log/domain/`YOURfolder - domain.com`/error.log

    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn

    CustomLog /var/log/domain/`YOURfolder - domain.com`/access.log combined

</VirtualHost>