Training Example: CloudLinux – Review the Data, Give Your Score & Compare to the Real AI Evaluation

[H1] The Platform for Linux Web Hosting

[H4] Industry Leader in Security, Density, and Manageability

INSTALL FOR FREE

[H2] GROW 22% FASTER
[H2] BY MAXIMIZING YOUR SERVER SECURITY

Maximum security for your servers

Reduces the churn rate

[H4] Hosting companies with proper security have 22% faster growth than the others

GET STARTED NOW

CloudLinux Product

[H1] New CloudLinux OS feature

[H4] The first data-driven, automated WordPress
optimization.

Learn More

Why use CloudLinux?

[H2] Stability

Stable servers reduce churn and allow you to increase density, and therefore magnify your profit. The CloudLinux OS stability features prevent resource spikes and make your servers rock-solid stable, even in the most stressful situations.
LEARN MORE

[H2] Security

CloudLinux OS protects your servers from attacks by virtualizing users’ file systems and prevent sensitive information disclosure.

Our kernel-level technology prevents all known symbolic link attacks, which further enhances the security level of the servers.

Secure the unsupported versions of PHP where, vulnerabilities, even if discovered, are not patched by the PHP.net community.

LEARN MORE

[H2] Profitability

Multiply the number of users on a more stable server with Cloudlinux OS and manage any resources limits for each customer.
LEARN MORE

[H2] Performance

Troubleshooting performance problems with detailed information on system bottlenecks, slow database queries, functions, or external calls.
LEARN MORE

[H2] You’re in good company

4,000+ companies trust CloudLinux to run more than 20 million of customer websites.

As a managed hosting provider we are always looking for quality products that will help us increase efficiency and stability as well as improve the overall performance from our servers. We deployed CloudLinux on our shared hosting servers, and we have seen an immediate improvement in reliability. Now we want to offer the same solution to our dedicated server customers.

I installed [CloudLinux OS] on Sunday night. It was pretty easy. I’m also amazed at how much it has brought our CPU usage down. I thought caging the different accounts in a virtual environment would put more of a load on our server, but this has done the opposite. Before, our total CPU usage was between 50 – 90% during the day and now it is around 6 – 30%. I’m not sure how or what did this, but I’ll take it! Thank you…

bHosted.nl use CloudLinux for all servers, from Webhosting / VPS / Dedicated servers. It’s a stable OS, we are very happy in combination with Imunify360 and Kernelcare. And if they are any problems contact the support and you get a very fast and good answer on your question.

We’ve been really stable selling shared hosting and CloudLinux did it for us (after a number of battles trying to solve the hiccup)! It was like magic!

I´m running this company for 20 years, we use many vendors in the market and I’m using CloudLinux services for only one week. What I can say is: you have the BEST support service from the whole industry. You guys just rock!

This is the equivalent of changing the engine on an airplane while it’s flying. I think this will be viewed as a no-brainer purchase when you consider the cost of less than $50 annually per server for having the protection of kernel security updates without downtime.

A lot of hosters are finding their niche, but if you are a “generic” hosting company, you have to focus on the quality of service and monetization. CloudLinux is here to help your business grow and expand.

Igor Seletskiy

CEO & Founder of CloudLinux Inc.

[H2] Highly Compatible

CloudLinux OS Shared works with all major control panels and is compatible with most software commonly used with CentOS and RHEL.

"
CloudLinux OS and Imunify360 helped us reduce support overhead and offer more stable, secure VPS services to our clients.

Alex
Head of Technical Support & System AdministratorDominiOK

"
Partnering with CloudLinux OS has been a blast, they enhance our VPS stability and strengthen our customers’ website security with the Imunify360 bundle, delivering better quality products at amazing prices.

Dean Cohen
CEOMyHost.co.il

"
CloudLinux OS is our default choice for all servers. It gives us security, stability and peace of mind for our customers.

Karl Austin
Managing DirectorKDAWS.com

"
The VPS Bundle allowed us to scale without inflating costs, we saved over 50% while improving client offerings.

Rahmat S. Masror
CEO/Sr. IT Consultantpamirwebhost.com

[H2] FAQ

What do CloudLinux OS products do?+
There are three Operating systems in the Cloudlinux OS product line:
CloudLinux OS Legacy – improves shared server stability, density, and security by isolating each tenant and giving them allocated server resources.
CloudLinux OS Shared Pro – is an advanced version of CloudLinux OS Legacy that includes deep-look performance analytics, and centralized monitoring tools.
CloudLinux OS Solo –  for small businesses and any individual with just one hosting account. It includes website monitoring, performance detection, and performance optimization tools, that allow to make sure that the website is up and running, help in investigating problems with WordPress, PHP, Database, and speed up a website.

How can I test-drive CloudLinux OS Products?
+
For a shared web server you can sign up for a free license for 30 days by choosing CloudLinux OS Shared Pro trial that includes all features of CloudLinux OS Legacy and CloudLinux OS Shared Pro.
For VPS, dedicated or virtual machines you can sign up for a free license of CloudLinux OS Solo.
Any trial license can be obtained here or in your CLN account if you already have one.

How much does CloudLinux OS cost?
+
CloudLinux OS is licensed per server, with pricing based on the edition you choose. To see all available editions and the most up-to-date pricing, visit the CloudLinux OS pricing page.

How can I buy CloudLinux OS?
+
Visit Cloudlinux OS shopping cart here. If you have any questions, please write to [email protected]

How do I contact customer support?
+
Go to Support Portal – CloudLinux We’re here to help you get resolutions to problems, find technical or “how to” information, or submit a ticket to our Support Engineers.

[H1] Features

Get Free Trial

*No credit card required

[H2] Lightweight Virtual Environment

Limit all CPU, IO, memory resources, numbers of processes, and concurrent connections per user

A single site can easily bring your server to a halt by consuming all your CPU, memory, and IO resources. Our proprietary Lightweight Virtual Environment (LVE) technology prevents that by allowing hosts to set up individual resource limits. This ensures that a tenant can never use more resources than they are given.
LVE is a kernel-level technology developed by the CloudLinux team. It integrates at the server, PAM (Pluggable Authentication Modules), and database levels to prevent any kind of abuse while maintaining the lowest overhead possible. The technology has roots in common with container-based virtualization.
The goal of LVE is to ensure that no single website can bring down your server.

MySQL is one of the main causes of issues on a shared server. MySQL Governor monitors MySQL usage and throttles abusers, preventing them from overloading the server, which improves overall stability and performance.

MySQL often becomes a major headache for shared hosting companies. Keeping MySQL stable is difficult, and customer queries can easily slow everything down. This is where MySQL Governor comes in. Its ability to pinpoint abusers and throttle them in real-time is unprecedented in the industry. With support from the latest versions of MySQL and MariaDB, it is a must-have for any shared host.
MySQL Governor tracks CPU and disk IO usage for every user in real-time and throttles MySQL queries by using same-per-user LVE limits. By using the dbtop utility, it is possible to see usage as it happens on a per-customer basis, ensuring that system admins always know what is going on.

CageFS is a virtualized, per-user file system that uniquely encapsulates each customer, preventing users from seeing each other and viewing sensitive information. CageFS prevents a large number of attacks, including most privilege escalation and information disclosure attacks. It is completely transparent to your customers, without any need for them to change their scripts.

Linux was never meant to be used by a large number of unvetted users and is therefore extremely prone to hacking. It is far too easy for a hacker to obtain an account on your server by using a stolen credit card and signing up or by abusing an outdated script one of your customers has not updated for years. After that, a hacker has inside access to the server and can begin poking around and attacking your server. That leaves you with the nightmare of cleaning up your hacked server.
CloudLinux OS Shared prevents this nightmare from happening. With CageFS, users are virtualized to their own file systems, preventing any individual user from seeing any other users on the server.

Several highly popular versions of PHP, used in nearly 85% of all PHP sites, are unsupported by the PHP.net community. HardenedPHP secures old and unsupported versions of PHP – 4.4.9, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 7.0, 7.1, 7.2.

Percentages of websites using various versions of PHP

SecureLinks is a kernel-level technology that prevents all known symbolic link (symlink) attacks. It enhances the security level of the servers even further and prevents malicious users from creating symbolic link files (where an attacker tricks Apache Web server to read some other user’s PHP config files).

CageFS is extremely effective at stopping most information disclosure attacks, in which a hacker can read sensitive files like /etc/passwd. However, in some cases, CageFS won’t be able to protect against symbolic link attacks. For example, on cPanel servers, it is not enabled in the WebDAV server, cPanel file manager, and webmail, as well as some FTP servers that don’t include proper change rooting. This allows attackers to create symlinks or hardlinks to sensitive files like /etc/passwd and then use WebDAV, filemanager, or webmail to read the content of those files. With CloudLinux OS SecureLink, you can prevent such attacks by keeping malicious users from creating symlinks and hardlinks to files that they don’t own.

The PHP Selector allows end-users to select the specific version of PHP they need. It allows ultimate flexibility by offering all popular versions of PHP, with more than 120 PHP extensions to choose from.

Each of your customers is different, and each has different needs. With PHP being the dominant language on the internet, we package multiple versions of PHP and let the customer select which version they want to run. Customers can select between PHP 4.4, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, and 7.0, 7.1 and 7.2. They can also select from more than 120 different PHP extensions.
Quite often, a customer needs one extension while another customer needs a different extension. Without CloudLinux OS Shared, the way to handle this is to move the customer to VPS, which is often costly and might encourage your customer to move to a different hosting provider. No more. CloudLinux provides a large number of extensions and gives control to the end-user. Only users who need it will use the PHP selector. Everyone else will use the default PHP version that you have installed on your server. Customers can switch to a different version of PHP at any time.

The Ruby Selector allows end-users to select the specific version of Ruby they need.

Each of your customers is different, and each has different needs. The Ruby Selector allows end-users to choose the Ruby version for applications and install additional modules (gems) to the application environment. Ruby Selector uses mod_passenger for optimum performance.
Without CloudLinux OS Shared, the way to handle a customer needing a different version of Ruby is to move the customer to VPS, which is often costly and might encourage your customer to move to a different hosting provider. No more. CloudLinux OS Shared gives control to the end-user. Only those users who need it will use Ruby Selector.
The Ruby Selector is available for CloudLinux 6 or later and requires LVE Manager 0.9-1 or later. However, as an administrator, you can choose to simply hide the Ruby Selector option and it will not appear in the user interface.

The Python Selector allows end-users to select the specific version of Python they need.

Each of your customers is different, and each has different needs. The Python Selector allows end-users to choose the Python version as an application and install additional modules. Python Selector uses mod_passenger to get the best performance from Python applications.
Supported Alt-Python versions include:
• alt-python27 2.7.9, supported by CloudLinux 5-7 • alt-python33 3.3.2, supported by CloudLinux 6-7 • alt-python34 3.4.1, supported by CloudLinux 6-7 • alt-python35 3.5.4, supported by CloudLinux 6-7
The Python Selector requires LVE Manager 0.9-1 or later. However, as an administrator, you can choose to simply hide the Python Selector option and it will not appear in the user interface.
Without CloudLinux OS Shared, the way to handle a customer needing a different version of Python is to move the customer to VPS, which is often costly and might encourage your customer to move to a different hosting provider. No more. CloudLinux OS Shared gives control to the end-user. Only those users who need it will use Python Selector.

Mod_lsapi is the fastest and most reliable way to serve PHP pages. It is a drop-in replacement for SuPHP, FCGID, RUID2, and ITK. It has a low memory footprint and understands PHP directives from .htaccess files. Mod_Isapi:

• Is faster than any other way to serve PHP with Apache.
• Doesn’t suffer from stability issues in process management like PHP FPM and mod_fcgid.
• Includes the full benefits of opcode caching.
• Is compatible with MPM Worker and Event.
• Does not require tuning.
• Includes support for PHP directives in .htaccess files.
• Is a drop-in replacement for existing ways to serve PHP.
• Is fully compatible with PHP Selector.

When a website slows down, there’s usually a problem with its content management system. To restore its performance, it used to be necessary to delve into its WordPress installation and diagnose the problem by hand. Now, on servers that run CloudLinux OS Shared Pro, performance problems can be identified immediately using a new tool called PHP X-Ray.
PHP X-Ray, included with CloudLinux OS Shared Pro, provides detailed information on performance bottlenecks that involve WordPress. If a site has sluggish plugins, database queries, functions, or external calls, this new tool helps pinpoint the underlying problem.
Troubleshooting performance problems
PHP X-Ray was developed specifically to troubleshoot performance issues in PHP-based websites, such as:
• Slow plugins
• Slow database queries
• Slow functions
• Slow external calls

Centralized Monitoring enables sysadmins to monitor all their servers, determine the load on each one, and identify the users creating the most load. If a domain is using an inordinate amount of CPU, memory, or disk resources, this tool helps bring it under control.
A detailed look at server performance
Centralized Monitoring provides a detailed look at the load on any and all servers throughout your infrastructure. It enables sysadmins to easily monitor:
• Server performance (RAM, CPU, disks, system load, network, open files, IO) • Hardware temperature • Number of users • Apache connections • MySQL connections • CPU steal time for VM • Per-user resources (CPU, RAM, Processes, IO, MySQL CPU and IO)
We want this new tool to be effective right out of the box, as well as trouble-free and easy to use. It will provide a detailed per-user view.

[H2] LVE benefits include:

Ensure Utmost Stability

By limiting resources, you ensure that a tenant never uses more than he is allowed, and therefore never slows down or brings down your entire server or causes issues for all other tenants on the server.

Increase Revenue

LVE Manager acts as a powerful sales tool – you can set limits on a per-package basis and enjoy this feature as a new upsell opportunity, creating packages with more CPU and Memory and selling them to those customers who use more and need it. The best part is that your end users can see their own usage on the account, which makes upsell much smoother.

Reduce Churn Rate

Because the resources of each tenant are limited, your servers won’t go down or slow down, and this will minimize inquiries for performance issues – the primary cause of customer dissatisfaction.

[H2] LVE Manager

LVE Manager allows you to maintain fine-tuned control over your resources, including CPU, IO, memory, inodes, numbers of processes, and connections, that any single account can use. It is lightweight and transparent. Now you can limit abusers while allowing good customers to use what they need.

With LVE Manager, you can:

• Limit resources per single account – for end-users and for resellers
• Allow resellers to limit resources for their end-users
• Create and apply default packages
• View usage history per account
• Identify abusers and take corrective actions
• Identify top users and upsell to higher-end plans

Memory

Memory limits control the amount of memory each customer can use. CloudLinux is able to identify, in real-time, the amount of memory actually used by an end customer’s processes. Physical memory limits are especially effective in preventing out-of-memory (OOM) issues and customers’ ballooning memory usage, which destroys caches and causes server overload.

IO

IO limits restrict the data throughput for the customer. They are measured in KB/s. When the limit is reached, the processes are throttled (put to sleep). Because IO is one of the scarcest resources in shared hosting, the ability to put an upper limit on customer use is vital.

CPU

CPU limits establish the maximum amount of CPU resources that an account can use. When a user hits the CPU limit, processes within that limit are slowed down. CPU limits are crucial in preventing CPU usage spikes, which can often make servers slow and unresponsive.

Number of Processes

The number of processes limits control of the total number of processes within LVE. Once the limit is reached, no new process can be created until another one has finished. This effectively prevents fork bombs and similar DoS attacks.

Entry Processes

Entry processes limits control of the number of entries into LVE. The best way to think about this type of limit is as the number of web scripts that can be executed in parallel by visitors to a site. These limits are important to preventing single sites from hogging all Apache slots, thus causing Apache to be unresponsive.

Inode

An inode is a data structure on a file system that is used to keep information about a file or a folder. The number of inodes indicates the number of files and folders an account has. Inodes limits work on the level of disk quota.

Learn more about LVE Manager from documentation
Learn more

[H2] MySQL Governor features:

Stable, simple limits counted as part of LVE limits

Automatic detection and killing of long-running queries

MySQL 5.1 – 5.7 support

MariaDB 5.x and 10.x support

The video isn't loaded, because You haven't allowed "functionality" cookies to be used.
You can click here to watch the video on Youtube.

As a result, hosting companies can carefully throttle resources to maintain performance across servers without instantly disconnecting users.

[H2] Learn more about MySQL Governor from documentation

Learn more

[H2] With CageFS:

Users only have access to safe files

Users cannot see other users and have no way to detect the presence of other users or user names on the server

Users cannot see server configuration files, like Apache config files

Users have a limited view of their own processing file system, and cannot see other users’ processes

This innovative technology operates on the following principles:

• Only allow safe binaries to be available to users.
• Remove each user’s access to ALL SUID scripts.
• Limit each customer’s access to the /proc filesystem.
• Prevent symbolic link attacks.

Even with this extensive security, a user’s environment is fully functional, and users

[H1] Contact Us

[H2] Get in touch with us

Sales Inquiries

[email protected]

Sales hours: 9:00 am – 7:00 pm EST, excluding weekends and major holidays
Email Sales

Technical Support

We offer unlimited, 24x7x365 support. Submit a request following the link below.
Contact Support

Marketing Inquiries

[email protected]

Email Marketing

Billing Inquiries

Submit a request following the link below.

Contact Billing

Headquarters

20791 Three Oaks Pkwy, #980Estero, FL 33929, USA

Career Inquiries

Send a resume

[H2] Stay in touch

[IMG: facebook]

[IMG: twitter]

[IMG: linkedin]

[IMG: youtube-logotype]

[H1] Welcome to the CloudLinux Support Portal!

We’re here to help you get resolutions to problems, find technical or “how to” information, or submit a ticket to our Support Engineers. For trial or sales information, please visit CloudLinux.com, and click on “Products”.

Support Policy|Privacy policy

See what you can do in the Support Portal

WATCH NOW

Server License Check Tool

CloudLinux OS Documentation

Changelog

CloudLinux OS Shared Pro

Getting Started

See what you can do in Support Portal

WATCH NOW

[H2] CloudLinux OS Trending Topics

[IMG: next]

[IMG: next]

[IMG: next]

[IMG: next]

[IMG: next]

[IMG: next]

[IMG: next]

[IMG: next]

[IMG: next]
Where can I find my invoices?

[IMG: next]
How to refund purchased license?

[IMG: next]
How to check the active subscriptions I am paying for?

[IMG: next]
Where can I find my licenses and activation keys?

[IMG: next]
How to activate the license?

[IMG: next]
How to submit a ticket?

[IMG: next]
Where can I get a trial license?

[IMG: next]
How to convert CentOS or AlmaLinux server to CloudLinux?

[IMG: next]
What are CloudLinux OS EOL? How to upgrade to latest?

[IMG: next]
How to update php?

Learn More

Learn More

Learn More

[H2] CloudLinux OS and Components Release Announcements or Blog

[H2] More Support Options

Ask the Community

Browse Support Knowledge Base

Submit Support Request

Watch Product Videos

Read Customer Stories

Read Our Blog

Omnichannel support activated!

For quick questions, you can now DM us on Facebook or X!

[H2] CloudLinux Feature Portal

Follow our product development plans, provide feedback on our team’s ideas and upcoming features, and share your insights with our product team.

Need help?I'm a multilingual AI chatbot, trained to answer all your questions.

[H2] Stay in touch

[IMG: facebook]

[IMG: twitter]

[IMG: linkedin]

[IMG: youtube-logotype]