At Hostinger , we use cloudlinux with LVE containers. Each account gets a dedicated container and is served from there. Each container has resource boundaries to make sure the host stays healthy at all times (even if, one of the accounts is under a DDoS attack). In case the host needs to be put down, the account with its container can be easily migrated to a different host, to avoid unnecessary downtime. Our shared hosting accounts share hosts between several customers, whereas our cloud hosting clients are served solely from the host, meaning that only their accounts are put in the whole host.
Back in the day, it was either shared or dedicated hosting. Many of the companies dependant on superior load times and in need of a lot of disk space have gone with dedicated hosting. It became their primary option. When cloud technologies started to develop, some people switched to cloud server hosting instead. Plenty of companies use cloud hosting without experiencing many problems. Dips in performance and unexpected downtimes, both fairly common in shared hosting, can be prevented here.
Cloud hosting, on the other hand, tackles the increase differently. Under the cloud environment, the website is hosted on a pool of unified computing resources. This simply means that if one server is reaching its optimum level, then a second server is ready to function. Similarly, if a server fails, the website will still be running as other servers will continue to serve the incoming traffic.
“Guaranteed uptime” is one of the most common buzzwords in the business. Most (if not all) hosting providers offer uptimes of 99.9% and higher. Some cloud hosting companies, like A2 hosting, for example, genuinely deliver on their promises. Yet still, it's important to know how downtimes work. This convenient chart shows, how often your website can still go down with the provider’s “guaranteed uptime”.
A virtual server can be created in a matter of seconds, quite literally. It can also be dismissed as quickly when it is no longer needed. Sending resources to a virtual server is a simple matter as well, requiring no in-depth hardware modifications. Flexibility is one of the primary advantages of cloud hosting, and it is a characteristic that is essential to the idea of the cloud server.
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Varnish Cache is a powerful web application accelerator that can speed up a website by up to 1000 percent. Varnish is typically used for content heavy dynamic websites. It is used by high-profile, high-traffic websites including Wikipedia, online newspaper sites such as The New York Times, The Guardian, The Hindu, Corriere della Sera, social media and content sites such as Facebook, Twitter, Vimeo, and Tumblr. Of the Top 10K sites in the web, around a tenth use this software.
Rather than being hosted on one single instances of a physical server, hosting is delivered on a virtual partition which draws its resource, such as disk space, from an extensive network of underlying physical servers. If one server goes offline it will have no effect on availability, as the virtual servers will continue to pull resource from the remaining network of servers.