ZeroSSL VS CloudLinux

• Free SSL Certificates
  ZeroSSL offers free SSL certificates, making it an attractive option for smaller websites or those with limited budgets who need basic encryption and validation.
• User-Friendly Interface
  The platform is designed to be easy to use, even for those without technical expertise, with a straightforward process for generating and managing SSL certificates.
• Multiple Validation Options
  ZeroSSL supports Domain Validation (DV), Organization Validation (OV), and Extended Validation (EV) certificates, providing flexibility based on necessary security assurance levels.
• ACME Support
  ZeroSSL supports the Automated Certificate Management Environment (ACME) protocol, allowing for the automation of certificate issuance and renewal, reducing manual interventions.
• API Access
  Offers an API for developers that can be used to automate the process of issuing and managing certificates, which is beneficial for large-scale deployments.

Possible disadvantages

• Limited Free Plan
  While certificates can be obtained for free, the free plan offers limited features compared to paid options, such as shorter validity periods and fewer automation capabilities.
• Potential Renewal Hassles
  Users need to frequently renew their free SSL certificates as they have shorter validity periods, which might require more frequent updates on the server.
• Support Limitations
  Free users may have limited access to customer support, which could be a downside if issues or questions arise that require prompt resolution.
• Feature Set Limitations
  The platform's advanced features may only be available under paid plans, limiting access for users who opt for the free plan.

• 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.

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

More videos

• Let's Encrypt bans certificate usage in any US sanctioned country [pdf]

  Has anyone got any experience with Zero SSL? https://zerossl.com/. - Source: Hacker News / 5 months ago

• SSL certificate requirements are becoming obnoxious

  Yeah, one of those is https://zerossl.com/. - Source: Hacker News / about 1 year ago

• LetsEncrypt – Complete Outage

  Alternatives are available: https://zerossl.com/ (90 days) https://www.buypass.com/ (180 days). - Source: Hacker News / over 1 year ago

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Tracking CloudLinux since Mar 2021.