Software Alternatives & Startups

Viber VS CloudLinux

Compare Viber VS CloudLinux and see what are their differences

Viber

Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.

Rating
0 reviews
CloudLinux

Making Linux secure, stable, and profitable for thousands of hosting providers and data centers worldwide.

Rating
0 reviews
Pricing
Open source
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Base details

Website, pricing, platforms and company facts side by side.

Viber
CloudLinux
Website viber.com cloudlinux.com
Pricing —
Open source
Company Startup from Japan —
Listed in

Features and specs

What each product offers, as listed by its team.

Viber 9 features
CloudLinux 5 features
  • Ease of Use
    Viber features a user-friendly interface that makes it easy for users to navigate and use the app without a steep learning curve.
  • Free Texting and Calling
    Viber allows users to send text messages, make voice calls, and video calls for free over the internet.
  • End-to-End Encryption
    Messages and calls on Viber are end-to-end encrypted, providing a high level of security and privacy for users.
  • Multimedia Support
    Users can send photos, videos, voice messages, and files through Viber, offering a versatile communication platform.
  • Group Chats and Calls
    Viber supports group chats and calls, allowing users to communicate with multiple people simultaneously.
  • Sticker and Emoji Library
    Viber offers a wide range of stickers and emojis to enhance the messaging experience.
  • Viber Out
    Viber Out allows users to make low-cost international calls to non-Viber users across the globe.
  • Cross-Platform Compatibility
    Viber is available on multiple platforms including iOS, Android, Windows, and Mac, ensuring seamless communication across devices.
  • Public Accounts
    Businesses and public figures can create public accounts to communicate with their audience on Viber.

Possible disadvantages

  • Data Usage
    Viber requires an internet connection, which can lead to high data usage, especially for voice and video calls.
  • Dependency on Internet
    Viber calls and messages are dependent on internet connectivity, limiting its functionality in areas with poor or no internet access.
  • Limited User Base
    Compared to other messaging apps like WhatsApp and Facebook Messenger, Viber has a smaller user base, which may limit its usefulness for some users.
  • Notification Issues
    Some users have reported issues with not receiving notifications promptly or consistently on certain devices.
  • Quality of Service
    The quality of voice and video calls can be inconsistent and is highly dependent on the speed and stability of the internet connection.
  • Privacy Concerns
    Despite end-to-end encryption, some users remain concerned about the collection of metadata and potential privacy issues.
  • In-App Purchases
    While basic features are free, Viber offers in-app purchases for additional services such as premium stickers and Viber Out credits.
  • Background Battery Usage
    Viber can consume a significant amount of battery power when running in the background, which may affect the overall device performance.
  • Enhanced Server Stability
    CloudLinux uses its lightweight virtualization technology (LVE) to isolate each tenant on a shared hosting server, preventing any single user from consuming excessive resources and crashing the server for everyone else. This ensures consistent uptime and performance.
  • Improved Security with HardenedPHP and KernelCare
    CloudLinux offers HardenedPHP, which patches old and unsupported PHP versions against known vulnerabilities, and KernelCare, which provides live kernel patching without requiring server reboots. These features significantly enhance server security posture.
  • Resource Limit Management
    Administrators can set granular resource limits (CPU, memory, I/O, number of processes, etc.) per user account using LVE Manager. This makes it easy to manage shared hosting environments and ensure fair resource distribution among tenants.
  • CageFS File System Virtualization
    CageFS creates a virtualized file system for each user, preventing them from seeing other users on the server, viewing sensitive configuration files, or exploiting server vulnerabilities. This adds an important layer of isolation and security.
  • Wide Compatibility with Hosting Panels
    CloudLinux integrates seamlessly with popular hosting control panels such as cPanel, Plesk, and DirectAdmin, making it straightforward for hosting providers to adopt without overhauling their existing infrastructure or workflows.

Possible disadvantages

  • Additional Licensing Cost
    CloudLinux requires a paid monthly or annual license on top of the base server cost. For smaller hosting providers or individual server owners, this additional expense can add up and may not always be justifiable compared to free alternatives.
  • Limited to CentOS/RHEL-Based Systems
    CloudLinux is built on top of RHEL/CentOS and does not support other Linux distributions like Ubuntu or Debian. This limits its adoption for hosting providers who prefer or already run non-RHEL-based environments.
  • Learning Curve for Configuration
    While CloudLinux provides powerful resource management tools, properly configuring LVE limits, CageFS, PHP Selector, and other features requires a solid understanding of the platform. Misconfiguration can lead to users being unnecessarily restricted or resources being poorly allocated.
  • Potential Performance Overhead
    The additional layers of virtualization, resource monitoring, and file system isolation introduced by CloudLinux can impose a slight performance overhead on the server compared to running a bare, unmodified Linux distribution without these controls.
  • Dependency on CloudLinux Ecosystem
    Adopting CloudLinux means relying on their ecosystem for kernel updates, PHP patches, and security fixes. If the company experiences delays in releasing patches or changes its pricing/licensing model, hosting providers may find themselves locked into a dependency that is difficult to migrate away from.

Analysis

An editorial look at what each product does well and who it suits.

Viber
CloudLinux

No analysis of Viber yet.

Overall verdict

  • CloudLinux is a well-regarded, mature Linux OS distribution and toolset specifically designed for shared hosting and multi-tenant server environments, offering strong isolation, resource management, and security features that make it a solid choice for hosting providers.

Why this product is good

  • Provides LVE (Lightweight Virtual Environment) technology for per-tenant resource isolation, preventing 'bad neighbor' effects on shared servers
  • Enhances server stability and security by isolating users so that one account's issues (crashes, resource spikes) don't affect others
  • Offers extended lifecycle support (longer than standard CentOS/RHEL support windows), which is valuable for legacy systems
  • Includes tools like CloudLinux OS Shield, Imunify360 integration, and hardened kernel options for improved security
  • Compatible with popular control panels like cPanel and Plesk, making it easy to integrate into existing hosting stacks
  • Backed by an established company with a long track record in the hosting industry and responsive support
  • Offers granular control over CPU, memory, I/O, and other resources per user account
  • Provides PHP Selector and multiple PHP version support, useful for hosting providers serving diverse client needs

Recommended for

  • Web hosting companies running shared or reseller hosting environments
  • Hosting providers needing to isolate customer accounts on the same physical server
  • Businesses requiring extended OS support lifecycles beyond standard RHEL/CentOS EOL dates
  • Enterprises using cPanel or Plesk that want tighter security and resource control
  • Hosting companies looking to reduce support tickets caused by noisy-neighbor resource contention
  • IT teams managing multi-tenant infrastructure who need governance and monitoring tools built into the OS layer

Videos

Walkthroughs and reviews on video.

Viber 2 videos + Add
CloudLinux 3 videos + Add

Viber Messenger for Android

More videos

  • - Welcome to Viber!

When To Use Cloudlinux On Your Virtual Private Server (VPS)

More videos

  • - CloudLinux OS+ in a minute: Explore Features
  • - How CloudLinux Plans to Keep CentOS 6 Alive

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Viber
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Viber no reviews yet
CloudLinux no reviews yet

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When comparing Viber and CloudLinux, you can also consider the following products.