Software Alternatives & Startups

SunCalc VS CloudLinux

Compare SunCalc VS CloudLinux and see what are their differences

SunCalc

Find out where the sun will be at any time in any location

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.

Which is more popular?

Based on our record, SunCalc seems to be more popular. It has been mentioned 12 times since March 2021.

social mentions
12 vs 0
iPhone popularity
100% vs 0%

Base details

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

SC
SunCalc
CloudLinux
Website suncalc.net cloudlinux.com
Pricing —
Open source
Listed in

Features and specs

What each product offers, as listed by its team.

SC
SunCalc 4 features
CloudLinux 5 features
  • User-friendly interface
    SunCalc offers an intuitive and easy-to-navigate interface, allowing users to quickly determine the position of the sun for any given time and location.
  • Detailed Sun Data
    Provides comprehensive information, including sunrise, sunset, solar noon, solar altitude, and azimuth, beneficial for planning outdoor activities or solar energy projects.
  • Customizable with Maps
    Integrates with maps to allow users to visualize sun paths and data geographically, enhancing its utility for location-based planning.
  • Free Access
    SunCalc is freely accessible online, making it a cost-effective tool for users seeking solar position calculations without investment in specialized software.

Possible disadvantages

  • Limited Advanced Features
    While SunCalc provides basic solar data, it lacks more advanced features or analytics available in professional-grade solar calculation software.
  • Internet Dependency
    Requires an internet connection to access the website, which can be a limitation for users in areas with poor connectivity or when working off-grid.
  • No Mobile Application
    Currently, there is no dedicated mobile app for SunCalc, potentially reducing its convenience for on-the-go users compared to solutions offering app-based services.
  • Inconsistent Accuracy
    Depending on the location or specific requirements, some users have mentioned occasional inaccuracies in the data, possibly affecting precision-dependent projects.
  • 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.

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SunCalc
CloudLinux

No analysis of SunCalc 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.

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SunCalc 3 videos + Add
CloudLinux 3 videos + Add

Suncalc Luster Leaf Sunlight Calculator

More videos

  • - SunCalc Sunlight Measuring Device
  • - WeatherPro & SunCalc Free app Android Test

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
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SunCalc
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

Share your experience with using SunCalc and CloudLinux. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

SC
SunCalc 12 mentions
CloudLinux 0 mentions
  • Show HN: The current sky at your approximate location, as a CSS gradient
    Hey, small note that your excellent https://suncalc.net/ is showing an error due to the Google Maps API token having expired. I know that you deeply know map tech :-) but if I may make a suggestion - you might consider switching from... - Source: Hacker News / about 1 year ago
  • Orientation of corner townhouse: South West vs South East
    ?????. Don’t listen to these people. You need to ask in another sub, of course the direct sun will affect, your garden, your house, your enjoyment. The sun here switches a couple of degrees in winter cause we’re close to the equator.... Source: over 3 years ago
  • Tracking the shade
    Http://suncalc.net you can check the sun's position realtime. Maybe it is useful. Source: over 3 years ago

View more

Tracking CloudLinux since Mar 2021.

Alternatives to SunCalc and CloudLinux

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