Zentyal Server
Zentyal Server: A capable small-business firewall and directory platform with free and supported editions. Ranked #21 of 76 in Firewall Software by our editors (7.1/10); pricing: Free plan · 15-day trial; best for small businesses needing firewall and directory services.
At a glance
- Editor score7.1 / 10
- PricingFree plan · 15-day trial
- Best forSmall businesses needing firewall and directory services
- Free planYes
- Outbound controlAdvanced
- Founded2004 · Zaragoza, Spain
- Facts checked22 Sep 2026
Where it wins
- Free Development Edition includes firewall, IDS/IPS, VPN and gateway services
- Native Active Directory compatibility with DNS, DHCP, VPN and proxy services
- Advanced inbound and outbound rules with connection logging
Where it doesn't
- Commercial support is priced per server rather than per organization
- Self-hosted Linux deployment requires infrastructure and administration
- Management breadth is narrower than more advanced firewall platforms
Our verdict on Zentyal Server
Zentyal Server is a Linux-based, self-hosted platform for small and mid-sized organizations that want firewall, directory and core network services in one deployment. It combines native Active Directory compatibility with file sharing, mail, DNS, DHCP, VPN, HTTP proxy, certification authority and gateway functions. The firewall handles internal, external and server traffic, with packet filtering, inbound and outbound rules, connection logging, IDS/IPS and routing configuration. It can run on physical hardware, virtual machines or cloud instances.
Pricing is divided into three editions. The Development Edition is free and community supported, and includes Zentyal 8.1, firewall and IDS/IPS capabilities, VPNs and gateway services. The Annual Subscription costs $230 per server per year and adds one-server coverage, software and security updates, version upgrades and technical support. The Lifetime License costs $460 per server and includes a lifetime license for one server. A 15-day free trial is also available. This structure suits organizations that can manage a self-hosted Linux platform and want to begin without a license fee, then pay for updates and support when required.
Its main strength is breadth within a small-business infrastructure stack: firewall rules can match source, destination, IP address, network object, protocol and ports, while integrations include Microsoft Active Directory, Samba, Netfilter, Squid, Suricata, FreeRADIUS, OpenVPN and IPSec/L2TP. That makes Zentyal Server a practical fit for teams consolidating directory, gateway and security services. Organizations seeking broader firewall management capabilities or a more specialized enterprise firewall platform should consider alternatives with greater management depth.
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Zentyal Server pricing
All 3 Zentyal Server plans and prices →
Zentyal Server fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Outbound control | Advanced |
| Rule direction | Both |
| Connection alerts | Not verified |
| Application rules | Not verified |
| Supported platforms | linux |
| Central management | Not verified |
| Free trial | 15 days · no card needed |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Linux |
| Support | Tickets, Community, Docs |
| Built for | Small business, Mid-market (editorial estimate) |
| Integrations | 8 integrations: Microsoft Active Directory, Samba, Netfilter, Squid, Suricata, FreeRADIUS … |
| Pricing | Free plan · 15-day trial (source) |
| Website | zentyal.com |
| Facts checked | 22 Sep 2026 |
Zentyal Server integrations
Zentyal Server lists 8 integrations on its own site.
- Microsoft Active Directory
- Samba
- Netfilter
- Squid
- Suricata
- FreeRADIUS
- OpenVPN
- IPSec/L2TP
Alternatives to Zentyal Server
- FortiGateA broad hybrid firewall platform for organizations that need deep security and network controls.9.4
- Arista NG FirewallA broad firewall platform with a free plan and extensive network controls.9.3
- Google Cloud NGFWGoogle Cloud-native firewall protection with free rule evaluation and usage-priced advanced controls.9.2
See all Zentyal Server alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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