You will need to change the Domain Name System (DNS) settings to point to each new site that is added to your VPS - this is how the human-readable website addresses and email addresses get translated into machine-readable IP addresses. Each DNS change can take 24 hours or more to propagate around the worldwide DNS network. If you're impatient you can access the site in "preview" mode at Virtualmin > Services > Preview Website or you can access the site directly by IP address (by entering an address like https://192.0.2.0 in your web browser) or you can modify the "hosts" file on your computer (on Windows this is usually located at C:\Windows\System32\drivers\etc\hosts, on a Mac it's at /etc/hosts and you need to be an administrator in both cases).
In the grand scheme of web hosting options, VPS hosting is the next level up from a standard shared plan. A VPS hosting plan offers greater flexibility and more resources than a shared plan. These plans aren’t as robust as having your own dedicated server. But, they offer a nice mid-level option for growing sites. With VPS hosting, your site is still stored on the same server as others. However, the key difference is that you’re no longer sharing resources with other webmasters.
In fact, most webhosts will offer the same LAMP web server stack software on their managed VPS plans as their shared hosting accounts. The main difference is the level of dedicated system resource allocation, such as RAM, CPU cores, bandwidth, or storage options. VPS plans also offer far more configuration options for web server customization with the command line than shared Linux or Windows hosting plans.
The most obvious and popular reason for a VPS is to run a single website, or multiple websites. However, you can use them for pretty much anything that requires access to the internet – such as a web application like Nextcloud to run your own Dropbox alternative – or to create your own virtual private network to better secure the internet connection of your PCs and mobile devices.
The "slashdot" effect is the main problem which will lead to VPS hosted website crashes more than any other. For example, if a VPS plan has an allocation of 2 GB of RAM and 2 CPU cores with a maximum support for around 200 simultaneous users of a complex Drupal or WordPress site, a popular social media link may temporarily increase traffic to a website 10x or 100x. In these cases, the VPS will crash... unless the overflow can be managed by burstable RAM or elastic cloud scalability. In elastic frameworks, the network monitoring software simply launches a new VPS instance with a cloned & synchronized version of the website files that can manage the additional user demand. When the traffic spikes decrease, elastic server networks can automatically scale down VPS instances to conserve resource utilization in production.
Be careful, though – there are some common traps many people fall into. Firstly, the promotional prices are only on offer for a month, after which you’re paying between $49.99 and $299.99/month on any of its five plans. Secondly, the 30 day, money-back guarantee is only valid for those who subscribe for a year or longer. Everyone else only has 48 hours to claim a refund.