Https Development Tutorials, Guides & Insights

To ensure Apache starts on boot, use the following command:

sudo systemctl enable apache2

If there are no errors, Certbot is successfully configured to automatically renew your certificates before they expire.

If you want to ensure the strongest security for your SSL configuration, you can edit your Nginx configuration file. Open it with a text editor:

server_tokens off;

Fail2Ban is a tool that helps protect Nginx from brute-force and DoS attacks by blocking IP addresses after a series of failed attempts. Install Fail2Ban and configure it for Nginx.

const CACHE_NAME = 'my-pwa-cache-v1';
const urlsToCache = [
  '/',
  '/index.html',
  '/styles.css',
  '/app.js',
  '/images/icon-192x192.png',
  '/images/icon-512x512.png'
];

self.addEventListener('install', event => {
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then(cache => cache.addAll(urlsToCache))
  );
});

self.addEventListener('fetch', event => {
  event.respondWith(
    caches.match(event.request)
      .then(response => response || fetch(event.request))
  );
});

self.addEventListener('activate', event => {
  const cacheWhitelist = [CACHE_NAME];
  event.waitUntil(
    caches.keys().then(cacheNames =>
      Promise.all(
        cacheNames.map(cacheName => {
          if (!cacheWhitelist.includes(cacheName)) {
            return caches.delete(cacheName);
          }
        })
      )
    )
  );
});

Push notifications allow you to re-engage users by sending messages even when the app is not open.

sudo ln -s /etc/nginx/sites-available/developerbreeze /etc/nginx/sites-enabled/
sudo rm /etc/nginx/sites-enabled/default

sudo nginx -t
sudo systemctl restart nginx