ClearOS Server Business

ClearOS 7, Business Edition is a complete server operating system. This edition is built for production users and includes only quality tested, performance optimized code and updates. All updates, bug fixes, patches and security fixes are automated at your discretion providing an easy to manage, stable, and secure solution. Features span 75+ IT functions from domain control, network & bandwidth control, messaging and more! 

  • Built for production use, having been fully tested and quality assured.
  • No user fees & simple per-server license options
  • Completely browser-based management, with point & click simplicity
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Final Release Downloads:

Edition:   Intended Use: Ongoing Updates Release Stage: CPU: ISO:
ClearOS 7.x Business Edition   Production Use Verified Final Release 64 bit ISO* Download
ClearOS 7.x Home Edition   Production Use Verified Final Release 64 bit ISO* Download
ClearOS 7.x Community Edition   Not Intended for Production Use Not Verified (after 30-days) Final Release 64 bit ISO* Download

Developer Testing Downloads:

ClearOS 7.x | Daily Build (UEFI hardware)   Never for Production Use Not Verified (unstable) Beta / Release Candidate 64 bit ISO Download

Installation Guides, Release Notes, & Documentation:

ClearOS 7.x | Quick Start Guide   Download
ClearOS 7.x | Change Log   View
ClearOS 7.x | Release Notes   View
ClearOS 7.x | User Guide   View
ClearOS 7.x | Bug Tracker   View

*SECURITY CHECK: When downloading a final release ClearOS ISO, use the following check sums for security verification. Click here for information on how to do this.


One Platform. One Interface.

Beginning in 2001 we ensured our software and appliances were cloud managed enabling you to more efficiently manage your deployments and multi-site environments from one simple interface. ClearOS provides a wide variety of IT functions for Cloud, Gateway, Network, Server and more; all built into one platform. We've designed ClearOS to be managed through Webconfig using any browser. This means you boot up your access device of choice and have all the tools at your fingertips you need to keep your system running. Make adjustments from your laptop in the office or from your smart phone on the road.

Clean, Simple Webconfig

ClearOS delivers a simple & beautiful browser-based interface. Leave the black screened world of command line interfaces behind. With ClearOS Professional, anyone can learn to manage their IT environment.



Robust VPN Features.

Get one of the most complete VPN systems. Make your network act as one even if you are running remote offices in different parts of the world.

  • Dynamic VPN - Utilize IPsec VPN to manage dynamic IP addresses
  • OpenVPN - Provide secure remote access to your local system
  • PPTP VPN - Set up your VPN with a PPTP connection

ClearOS Marketplace

ClearOS Business is the most versatile IT Operating Platform ever created. ClearOS includes IT functions from access point control to 3rd party, cloud application management.

The 75+ IT Functions built into ClearOS are delivered as apps, which you install as needed on your ClearOS server. Integration with existing cloud apps and service, combined with the delivery of new and dynamic cloud apps and services, makes managing your IT even easier.

ClearOS also provides the needed on premise functions for your server, networking and security needs. ClearOS is equipped with the ClearOS Marketplace which allows you to scale the functionality of your server with a simple point-and-click method.



Enterprise Grade Security

It's really quite simple, no one likes to feel as though your systems are at risk or that your data may be compromised. With ClearOS, protecting your network just got a whole lot easier.

ClearOS Professional keeps out unwanted viruses, spam and hackers, by offering you the latest in cutting-edge protection.

  • Antivirus - Keep your entire network safe by filtering viruses at the edge
  • Antiphishing - Protect your network from malicious links
  • Intrusion Detection - Filters all traffic at the gateway
  • Contextual Analysis - Intelligent analysis based upon page content
  • L7 Protocol Filter - Analyze packets and filter IP, port or protocol
  • Access Control - Apply time based restrictions to users & groups

Data Recovery

Far too often businesses procrastinate on implementing the necessary steps to ensure your business is functional at all times. ClearCenter provides simple scalable solutions to fit the needs of any remote storage requirement; be it 5 GB – 500 TB of offsite data backup.

Another feature which is beneficial to ClearOS users around the world is the Remote Configuration Backup. This snapshot of your system allows you to replicate these configurations across subsequent installations in your environment simply.

As the IT Administrator you decide when, what and how your system backs up and can rest assured that our global data centers keep your data secure and accessible at all times.


ClearOS 7, Business | Subscriptions

DID YOU KNOW: Deploying ClearOS 7, Business Edition saves you hundreds or even thousands of dollars a year. The Business Edition bundles in many available paid apps and services, along with commercial third party add-ons which are more costly as al a carte options on other ClearOS editions.Check out the benefits of using ClearOS 7, Business below:

Billed Annually $108/yr

Business Subscription

  • Includes 75+ IT Functions (apps)
  • ClearOS 7, Business OS & App Access
  • Quality Tested Code & Updates Only
  • Master / Slave Directory Synchronization
  • Microsoft® A.D. Connector (up to 50 users)
Billed Annually $348/yr

Business Subscription

  • BRONZE Subscription (plus the following)
  • + Commercial URLs for Content Filter
  • + Content Filter Blacklisting
  • + Commercial Signatures for IDS / IPS
  • + Commercial AV / AS Rules
  • + Remote System Configuration Backup
  • + Dynamically Managed VPN
Billed Annually $588/yr

Business Subscription

  • SILVER Subscription (plus the following)
  • + ClearCARE Level I (Break/Fix Support)
  • + 8/5 Tech-Support (M-F 10-18:00 EST)
  • + Unlmited Tickets (Incl. 2 Hour Support Pack)
  • + Email Support
  • + Remote Login Support
  • + 1 Business Day Initial Support Response
Billed Annually $1308/yr

Business Subscription

  • GOLD Subscription (plus the following)
  • + ClearCARE Level II (Troubleshooting Support)
  • + Unlmited Tickets (Incl. 5 Hour Support Pack)
  • + Phone Support
  • + 4 Hour Initial Support Response
  • + Remote System Monitor Alerts
  • + Remote File Security Audit Alerts 

ClearOS 7, Business | What's New in ClearOS 7

As you know ClearOS removes the complexity of deploying and managing server, network and gateway functions. ClearOS 7 features Marketplace, an on board application installation engine that allows it’s users to dynamically expand the functionality of the system to include upwards of one hundred applications and has about another hundred on the current road-map. Below is a review of the New Apps, New Improvements and a full App listing. Enjoy!

New Improvements

ClearOS 7 Business comes with all the features of ClearOS 6 Professional as well as the following improvements.

Streamlined Theme System

The ClearOS 7 theme is mobile and tablet friendly with a fresh clean look. Dashboard support has also been added to give administrators a bird's eye view of a system.

Updated Antispam Engine

The updated antispam engine includes improved DNS blocklist technology, new distributed & collaborative filtering, an optimized auto-learning system, and native IPv6 support.

Updated IDS and IPS Engines

The updated IDS/IPS engines include improved detection for mail authentication attacks, an updated base rule set, IPv6 support, security hardening, and new SSL weakness detection.

Event and Alert Notifications

The new event and alert system provides built-in intelligence to notify administrators of system issues: disk space issues, unwanted remote logins, and more.


ClearOS is now available in French, Polish and Russian. New translations and languages will be coming in 2016!.

XFS and BTRFS Filesystem Support

The robust and scalable XFS file system is the new default that provides support for large files (8 exabytes!) and millions of files per folder. Alternatively, BTRFS can be used for those needing snapshot support.

Microsoft® Hyper-V™ Compatibility

ClearOS 7 can now be seamlessly deployed in a Microsoft® Hyper-V™ environment and run well as a Microsoft® Hyper-V™ Server 2012 R2 host as a Generation 2 virtual machine.

Updated Antivirus Engine

The updated antivirus engine includes new PDF processing, updated Microsoft Office document support, a lower memory footprint, and additional decoding support for new file extensions.

Improved Virtualization Support

Disk I/O, network throughput and USB support have been optimized in ClearOS 7 for virtualization technologies such as Microsoft® Hyper-V™, KVM™ and ClearVM™.

New Apps

ClearCenter is excited to announced the official release of ClearOS 7 Business Editions in Q4 2015. And with the announcement the following Apps are either updated or new:

  • Google® Apps Connector

    Google Apps Synchronization app provides a connector to Google's "in the cloud" API. This app simplifies an administrators job by provisioning...

  • Dynamic Dashboard

    The dashboard app provides a high-level summary of how your system is configured, how it is performing and what users on doing...

  • IPv6 Ready

    Internet Protocol version 6 (IPv6) IPv6 provides other technical benefits in addition to a larger addressing space. In particular, it permits hierarchical...

  • DNSthingy

    DNSthingy gives you granular control over each user’s Internet experience. The following features can be applied network wide, or on a device by device...

ClearOS 7, Business | Marketplace Apps (Features)

Cloud Apps

  • Dropbox®
  • Google Drive® Sync (coming)
  • Microsoft Office365® Connector (coming)
  • Dynamic DNS
  • Dynamic VPN
  • Remote Security Audit
  • Remote Data Backup
  • Remote System Monitor
  • Google Apps®, Accounts Sync
  • Antimalware Signatures
  • Antispam Signatures
  • Content Filter Blacklists
  • IDS Signatures

Network Apps

  • Bandwidth & QoS Manager
  • 1-to-1 NAT Firewall
  • Custom Firewall
  • DMZ Firewall
  • Egress Firewall
  • Incoming Firewall
  • Port Forwarding
  • Network Map
  • DHCP Server
  • DNS Server
  • Multicast DNS Server
  • NTP Server
  • RADIUS Server
  • SSH Server
  • UPnP
  • OpenVPN
  • ibVPN
  • PPTP Server
  • IPsec VPN
  • IP Settings
  • Multi-WAN
  • Upstream Proxy

Gateway Apps

  • Gateway Antiphising
  • Gateway Antivirus
  • Kaspersky® Antimalware
  • Content Filter Engine
  • DNSThingy
  • Web Access Control
  • Web Proxy Server
  • Web Proxy Auto Detection
  • Intrusion Detection System
  • Intrusion Prevention System

Server Apps

  • MariaDB Database Server
  • Directory Server
  • Microsoft Active Directory® Connector
  • Google Apps® Connector (coming)
  • Antimalware File Scanner
  • FTP Server
  • Flexshare
  • ownCloud
  • Photo Organizer
  • Plex Media Server
  • Serviio Media Server
  • Windows Networking (Samba)
  • Advanced Print Server
  • Greylisting
  • IMAP &amp POP Server
  • Mail Antispam
  • Mail Antivirus
  • Mail Archive
  • Mail Retrieval
  • Kaspersky® Mail Antimlware
  • Roundcube Webmail
  • SMTP Server
  • Zarafa® Collaboration (exchange)
  • Web Server

System Apps

  • Master / Slave Synchronization
  • Administrators
  • Groups
  • Account Manager
  • Account Import
  • Password Policies
  • Users
  • User Certificates
  • User Profiles
  • Software RAID Manager
  • Storage Manager
  • ClearOS Business Marketplace
  • ClearCARE Support

Reporting Apps

  • Bandwidth Viewer Report
  • Disk Usage Report
  • Log Viewer
  • Network Report
  • Network Visualizer
  • Process Viewer
  • Resource Report
  • SMART Monitor
  • Events &amp Notifications System (coming)
  • System Report
  • IDS Report (coming)
  • IDS Viewer (coming)
  • Content Filter Block Report (coming)
  • Antimalware Threat Report (coming)
  • SSH Access Log Report (coming)
  • Remote Audit Log Report (coming)
  • Penetration Testing Report (coming)

ClearOS 7, Business | Awards


With an active community of over 100,000 members, and deployments in over 150 countries (including millions of users), ClearOS continues to lead the market as the #1 small business server, independently ranked #1 by Small Business Computing . As always, it’s also free, so the world can continue to benefit from its expanding functionality by downloading the latest release below.

ClearOS 7, Business | Deployment Types

ClearOS provides a simple solution be it deployed on premise or off premise. Click the image to view a simple comparison of popular deployment types. With ClearOS, you can choose to deploy a private network keeping your data local or utilize cloud technologies for file and messaging with ease.


ClearOS 7, Business | Demo Server


Login and See IT Live

ClearOS Business allows you to deploy your server, network, gateway and more privately; keeping your data protected from outside entities or big brother duplication. With over a hundred apps and services available for your on premise network, ClearOS allows you to simplify your network while improving efficiency. This demo server is pre-configured in this way, providing file, print and mail as part of your deployment.

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Download & Try IT

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