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Launched in late 2003, CentOS is a community project with the goals of rebuilding the source code for Red Hat Enterprise Linux (RHEL) into an installable Linux distribution and to provide timely security updates for all included software packages. To put in more bluntly, CentOS is nothing more than a clone of RHEL. The only technical difference between the two is branding - CentOS replaces all Red Hat trademarks and logos with its own. But the connection between RHEL and CentOS is not immediately visible on the CentOS web site; due to trademark laws, Red Hat is referred to as a "Prominent North American Enterprise Linux Vendor", instead of its proper name. Nevertheless, the relations between Red Hat and CentOS remain amicable and many CentOS developers are in active contact with Red Hat engineers.
You'll also want to consider how long you'll need dedicated web hosting. If it's a short-term project—say, less than a month or two—you'll typically receive a refund should you cancel your hosting within 60 days. Some companies offer 30-day money-back guarantees, while others offer 90-day money-back guarantees. Once again, it's beneficial to do your homework.
There are many reasons to consider a Linux server for your hosting needs, regardless of your personal familiarity (or lack thereof) of this operating system. For starters, Linux servers tend to be the most secure of all operating systems by a long shot. This, in addition to taking some basic security precautions, can give you added peace of mind when it comes to protecting your site from a security breach or other vulnerabilities.
The typical installation of CentOS as performed in this tutorial will be based on the CentOS 7 DVD ISO image. You can burn the image to a DVD or copy it to a bootable USB drive. The installation covers the process of installing CentOS 7 on UEFI based machine. The same installation procedure can be successfully applied on old BIOS motherboards or on UEFI systems with Legacy Mode or CSM (Compatibility Support Module) option enabled.
A dedicated server solution is perfect for complex, high-volume websites that require serious amounts of processing power and storage. Some examples of websites that may require this service could be sites that have been around for a while and generated tons of pages and media, multiplayer video game servers for your own pet project, voice or video chat servers, or any other project requiring peak performance at all moments. In essence, if you need a lot of storage, processing power, and/or bandwidth, you need a dedicated server.