How to redirect non-www to www HTTP / TLS /SSL traffic on Nginx

## redirect http://cyberciti.biz to http://www.cyberciti.biz/
server {
    listen       80;
    access_log  off;
    error_log   off;
    server_name  cyberciti.biz;
    return       301 http://www.cyberciti.biz$request_uri;
}
## Continue below for www.cyberciti.biz
server {
    listen       80;
    access_log  off;
    error_log   off;
    server_name  www.cyberciti.biz;
    ## rest of config below ##
}

## redirect http://cyberciti.biz to https://cyberciti.biz ##
server {
    listen      80;
    access_log  off;
    error_log   off;
    server_name cyberciti.biz;
    return      301 https://$server_name$request_uri;
}
## redirect www.cyberciti.biz to https://www.cyberciti.biz/
server {
    listen      80;
    access_log  off;
    error_log   off;
    server_name www.cyberciti.biz;
    return      301 https://$server_name$request_uri;
}

## redirect all https://cyberciti.biz/ to https://www.cyberciti.biz/
server {
        listen 443 ssl http2;
        access_log  off;
        error_log   off;
        server_name cyberciti.biz;
        return 301 https://www.cyberciti.biz$request_uri;
}
## define our https://www.cyberciti.biz/ ##
server {
    listen 443 ssl http2;
    access_log  /var/log/nginx/www.cyberciti.biz_access.log;
    error_log  /var/log/nginx/www.cyberciti.biz_error.log;
    ## server name and root
    server_name  www.cyberciti.biz;
    root        /home/lighttpd/cyberciti.biz/http;
 
    # certs sent to the client in SERVER HELLO are concatenated in ssl_certificate
    ssl_certificate /etc/nginx/ssl/letsencrypt/cyberciti.biz/cyberciti.biz.crt;
    ssl_certificate_key /etc/nginx/ssl/letsencrypt/cyberciti.biz/cyberciti.biz.key;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    ssl_session_tickets off;
    # Diffie-Hellman parameter for DHE ciphersuites, recommended 2048 bits
    ssl_dhparam /etc/nginx/ssl/letsencrypt/cyberciti.biz/dhparams.pem;
 
    # intermediate configuration. tweak to your needs.
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
    ssl_prefer_server_ciphers on;
 
  # HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
    add_header Strict-Transport-Security "max-age=15768000" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Xss-Protection "1";
    add_header X-Whome "l-cbz02";
    # OCSP Stapling 
    # fetch OCSP records from URL in ssl_certificate and cache them
    ssl_stapling on;
    ssl_stapling_verify on;
    resolver 8.8.8.8;
    ## Improves TTFB by using a smaller SSL buffer than the nginx default
    ssl_buffer_size 8k;
 
    # Directives to send expires headers and turn off 404 error logging.
    location ~* ^.+\.(css|js|ogg|ogv|svg|svgz|eot|otf|woff|mp4|ttf|rss|atom|jpg|jpeg|gif|png|ico|zip|tgz|gz|rar|bz2|doc|xls|exe|ppt|tar|mid|midi|wav|bmp|rtf)$ {
          access_log off; log_not_found off; expires max;
    }
 
    # Pass all .php files onto a php-fpm/php-fcgi server.
     index index.php;
     location ~ [^/]\.php(/|$) {
     fastcgi_split_path_info ^(.+?\.php)(/.*)$;
            if (!-f $document_root$fastcgi_script_name) {
                     return 404;
     }
 
    # This is a robust solution for path info security issue and works with "cgi.fix_pathinfo = 1" in /etc/php.ini (default)
    include /etc/nginx/fastcgi_params;
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_pass php;
 }
}