pfSense is an open-source firewall and router software based on FreeBSD. It provides advanced features and flexibility for network security and routing.
Free (Community Edition), Paid support options available
Best ClearOS Alternatives ranked by AI · updated May 2025
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ClearOS is an operating system for your Server, Network, and Gateway systems.
Price: Free
🎯 clearos.com
Top 6 ClearOS alternatives
OPNsense is an open-source firewall and router platform based on FreeBSD, administered through a web interface. It is aimed at network administrators...
Pros
- Offers a far richer web interface than Advanced Policy Firewall
- Includes VPN, routing, reporting, plugins, and intrusion-prevention features
- Well suited to dedicated perimeter firewalls and small business networks
Cons
- Runs as a separate firewall appliance rather than a lightweight Linux host tool
- Requires dedicated hardware or a virtual machine
- More resource-intensive than Advanced Policy Firewall
Free; paid support and hardware available
Untangle is a comprehensive network security solution that provides firewall, web filtering, and other security features.
Starting at $50 per month
Zentyal is an open-source server and network management platform designed for small and medium businesses.
Free, with paid support options available
Univention Corporate Server is an open-source server and IT management solution that provides a central and easily manageable identity and infrastructure management...
Free and paid versions available
FreeIPA is an integrated Identity and Authentication solution for Linux/UNIX networked environments.
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