Archive for December, 2009

posted by Smirnovi4 @ 16:16 PM
December 30, 2009

Backups as precautions against data loss.

Every hosting account holder must understand the importance of backups. They play the same role in information technology, a car insurance plays in everyday life. Backups help you in case of unexpected issues with content on your account. Forums, blogs and similar projects take a lot of time to develop, but one serious spontaneous error in the system can damage all your information or even make it vanish entirely. This can happen due to numerous reasons: hardware and software faults, to name a few. Take into consideration such widely spread activity as hacking, and you will realize the scale of existing menaces. As a matter of fact, any WordPress blog, which is not updated on time, can easily fall victim to such malicious activity . This is also true for any kind of web software. Last but not least, you can accidentally make errors in data of your blog yourself, and then you need a point to roll back to. Backups enable you to do just that.

One of the easiest ways to make sure you can recover after most content related disasters is to make backups of your account from time to time. In case you run a WordPress based blog, having a backup of entire account is not necessary. It is enough to simply have a couple of healthy database dumps, which contain all important information, including your posts. Since posts are the most important part of any blog, having them in reserve archives saves you a lot of work in case of emergency restoration.

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posted by Smirnovi4 @ 16:16 PM
December 8, 2009

Virtualization is a widely used technology nowadays. A whole set of hosting plans is based on it – the so-called Virtual Private Servers (VPS). They allow steady transition from regular shared to the most powerful dedicated solutions. While big projects may require the power of an independent dedicated server, some personal and small-to-medium businesses may not need such resources at high costs at first. At the same time the needs of  such customers may not be satisfied with what regular shared hosting has to offer due its nature . Unlike shared hosting, V PS allows full isolation from other users on the host server. It provides full control over the account (i.e. root access), remote reboots and system restore.

Nowadays various approaches and implementations of virtualization exist. In this article we will compare two most widely used virtualization engines: OpenVZ and Xen. The main goal of the article is to provide basic concept, and outline the differences and similarities of the two engines.

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