Redirect 443 to 8001,8002,3000 etc via Proxy
sudo a2enmod proxy
sudo a2enmod proxy_http
Set SSL Proxy open this file
sudo nano /etc/apache2/sites-available/000-default-le-ssl.conf
IfModule mod_ssl.c>
<VirtualHost *:443>
# 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.comServerAdmin webmaster@localhost
DocumentRoot /var/www/html# 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:warnErrorLog ${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.confSSLProxyEngine On
ProxyPass /check.html !
ProxyPass / https://www.domainname.com:8001/
ProxyPassReverse / https://www.domainname.com:8001/
ProxyPreserveHost OnServerName damaine.com
ServerAlias www.damainename.com
SSLCertificateFile /etc/letsencrypt/live/damainname/fullchain.pem (SSL certificate Path)
SSLCertificateKeyFile /etc/letsencrypt/live/damainname/privkey.pem (SSL certificate Path)
Include /etc/letsencrypt/options-ssl-apache.conf
</VirtualHost>
</IfModule>
sudo /etc/init.d/apache2 restart