???? What is CloudLinux?
CloudLinux is a specialized operating system built on the Linux kernel, designed specifically for web hosting providers. Its purpose is to ensure that on servers hosting multiple users, each user utilizes resources fairly and in isolation, thus preventing them from negatively impacting the security, speed, and performance of other users. To achieve this goal, CloudLinux is equipped with advanced tools like LVE (Lightweight Virtual Environment), CageFS, PHP Selector, and MySQL Governor.
???? Why is CloudLinux Needed?
If your website is hosted in a shared hosting environment, it means there are other users' sites on the same server. The server's resources such as processor power, RAM, and disk access speed are shared among all of you. This is where the problem begins:
If one user is targeted by a bot attack,
If a site consumes too much CPU due to high traffic,
If a plugin or software error hogs resources,
all other sites are affected. In other words, your neighbor's mistake can affect your site as well. ???? This technology eliminates this risk. It creates a special "box" (isolated environment) for each user. You cannot go outside of that box, nor can you touch someone else's box.
???? Core Components of CloudLinux and What They Do
1. ???? CageFS (Cage File System)
CageFS provides an isolated file system for each user. This means that a user can only access their own data and cannot access anyone else's files, system configurations, or other user information.
Real-Life Analogy:
Imagine you live in an apartment building. CageFS locks the door and windows of each apartment individually. You cannot see, hear, or touch the other apartments.
Advantages:
Prevents malicious users from running commands that could harm the entire server.
Minimizes security vulnerabilities.
Reduces support tickets for hosting companies.
2. ⚙️ LVE (Lightweight Virtual Environment)
LVE allocates a specific amount of CPU, RAM, Input/Output (I/O), and connection limits to each user.
What Does It Do?
Even if a user receives a lot of traffic, they can only consume their own resources. The overall server performance does not decrease, and other users are not affected.
Example:
Your WordPress blog suddenly becomes popular. Thousands of people are visiting it at the same time. Normally, this would crash the server. But with this technology, the system provides protection by saying, "only this user should slow down, the others should not be affected."
3. ???? PHP Selector
It allows each user to choose their own PHP version. Some software works with PHP 7.4, while others require 8.1.
What Does It Do?
Applications that require different PHP versions can run together on a single server.
Eliminates incompatibility issues.
Example:
Your new software only works with PHP 8.2. But your old site still has to stay on PHP 7.3. Thanks to this technology, you can use both on the same server without any problems.
4. ???? MySQL Governor
Database usage must also be controlled. Because a poorly optimized database can slow down the entire server. MySQL Governor monitors database queries, and limits or slows down queries that use intensive resources.
???? Benefits Provided by CloudLinux
???? Who Needs CloudLinux?
This technology is particularly critical for the following user groups:
Companies offering shared hosting
Web agencies and freelancers
Users of resource-intensive systems like WordPress, Magento, and WooCommerce
Those who manage multiple websites
Those who want to offer high uptime guarantees to their corporate clients
❓ Frequently Asked Questions (FAQ)
Why is CloudLinux important not only for hosting companies but also for the end user? When you use a hosting service with a CloudLinux infrastructure, your site is not affected by other users' errors or high traffic. This makes your website's performance more stable and secure.
Are CloudLinux and cPanel the same thing? No. cPanel is a control panel; CloudLinux is an operating system layer that runs at the server level. However, they can work together seamlessly.
What is the impact of CloudLinux on performance? CloudLinux improves overall server performance because it distributes server resources fairly and limits abuse. Even if there is a traffic spike, the server will not crash, and other sites will not be affected.
I use a VPS or a dedicated server, is CloudLinux suitable for me? If you host multiple users or sites on a VPS or dedicated server, CloudLinux still provides advantages. However, for a single website, such detailed isolation may not always be necessary.
Is CloudLinux free? No. CloudLinux is a commercial product and requires a license. However, most hosting companies include this license with the server. So, you do not pay an extra fee as an end user.
???? The Hostider Advantage with CloudLinux
At Hostider, we use the CloudLinux infrastructure in all of our shared hosting services. The advantages for you are:
Your sites are managed separately and do not slow down.
You are not affected by attacks and malicious code.
You can see your resource usage in real time.
You can choose any PHP version you want.
Your website runs more stably and securely.
???? Conclusion: The Silent Hero of the Hosting World
This technology is the invisible but most important part of your website. An infrastructure that does not crash even when traffic increases, a performance that is not affected when other users have problems, a high level of security… All of these are related to the infrastructure you use. If the performance and security of your site are important to you, it is very important to choose a hosting provider that offers CloudLinux support.
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