Managed Firewalls. Your network has a guardian.
A firewall is only as good as its configuration and the people who manage it. Outdated rule sets, unpatched firmware, anomalies in the logs that nobody notices. These are not theoretical risks but everyday reality in many organisations. Handing over your firewall to an external partner means handing over one of the most sensitive parts of your IT. We know that. Which is why we work transparently, document carefully and are reachable when something happens. For Fortigate, OPNsense and pfSense, in your infrastructure or in our cloud.
A firewall only protects when it's configured correctly.
Many companies have a firewall. But how current is the firmware? When were the rule sets last reviewed? Are there rules that were created at some point and nobody understands anymore? And who is actually looking at the logs?
Firewall management sounds like routine, but it is not. Threat landscapes change quickly, new attack vectors emerge and what was secure yesterday may not hold up today. We manage firewalls for companies that understand network security is not a one-time investment but requires continuous attention. With clear processes, traceable rule sets, regular audits and a team that genuinely understands your network architecture.
What we take responsibility for.
Setup and configuration
We implement and configure Fortigate, OPNsense and pfSense precisely to your network architecture. Network zones, VLANs, VPNs, routing policies and HA pairs for redundancy and failover. No copy-paste configurations, but a rule set that genuinely fits your organisation.
Rule set management and optimization
Firewall rule sets tend to grow and become opaque over time. We actively maintain your rule sets, clean up outdated entries, optimise the order for better performance and make sure every rule has a traceable purpose.
24/7 monitoring
We monitor your firewalls around the clock. Performance metrics, security status, traffic anomalies and security-relevant events. IDS/IPS integration, automated and manual log analysis. We identify anomalies early and respond before damage occurs.
Security audits and compliance
We conduct regular security audits, review configurations for weaknesses and ensure your firewall policies align with relevant standards and regulations. With detailed documentation for your audit readiness.
Updates and patch management
We keep the firmware and software of your firewalls current. Security patches are applied promptly, updates are carried out in controlled maintenance windows. No unpatched systems, no known vulnerabilities left open.
VPN management
Site-to-site VPNs, remote access VPNs, SSL VPN and IPsec. We configure, monitor and operate your VPN connections and ensure secure, stable connectivity for sites and remote employees.
Integration into existing infrastructure
We integrate managed firewalls seamlessly into your existing IT environment, whether on-premises, in the cloud or in hybrid scenarios. Compatibility with other security solutions and systems is verified in advance.
Incident response
When security incidents occur, we act quickly. Analysis, escalation, containment and recovery. We conduct a post-incident analysis after every relevant event to prevent future occurrences.
Security you do not notice. Because it works.
Reduced attack surface
Current firmware, maintained rule sets and continuous monitoring significantly reduce the attack surface of your network. Known vulnerabilities are closed before they can be exploited.
Predictable costs
Fixed monthly service costs instead of unexpected expenses for emergency configurations, incident handling or external consultants who need to get up to speed first.
Compliance support
Complete documentation, audit trails and policy-compliant configurations support you with requirements from GDPR, ISO 27001 and other relevant standards.
Current configuration that fits
No outdated rule set that nobody understands anymore. Configurations that match your network architecture, reviewed and maintained regularly.
Transparency and control
You retain full visibility at all times. What is configured, why it is configured that way and what is happening on your firewall. No black box, but traceable security.
Relief for your IT team
Firewall management ties up time and requires specialised expertise. When we take responsibility, your IT team has capacity for tasks that move things forward strategically.
Network security is a matter of trust. We earn it every day.
Handing over your firewall configuration to an external partner is not a decision made lightly. This is the guardian of your network. We understand that responsibility and take it seriously.
Our engineers know Fortigate, OPNsense and pfSense not from training materials but from years of productive operation. They know which configuration mistakes are typical, which features genuinely help and where vendor defaults need to be adjusted. And they communicate clearly about what they do and why. No black box, no trusting to luck.
Related Services
Security Consulting
We analyse your security architecture, develop your ISMS further and accompany you on the path to ISO 27001 certification. Technically sound, hands-on and actionable.
Managed Virtualization
We operate and optimise your virtualised environments, whether VMware, Proxmox or other platforms, with the goal of stable, efficient and secure systems.
Managed Applications
We operate and manage your business applications. From installation through updates and monitoring to support, so your applications run reliably.
Frequently asked questions
What is a managed firewall?
A managed firewall is a fully managed security service. weSystems takes over the configuration, rule set management, updates, monitoring and support of your firewall. You get professional network security without your own administrative overhead.
Which firewall technologies does weSystems support?
We support Fortigate, OPNsense and pfSense. All three platforms offer next-generation features such as deep packet inspection, IDS/IPS, application control, content filtering and VPN functionality.
Do I retain control over my firewall configuration?
Yes, completely. We manage your firewall, but you retain full visibility at all times. Rule sets, configuration changes and events are documented and traceable for you at any time.
Is the solution also suitable for smaller companies?
Yes. Managed firewall services are scalable and make sense for small and medium-sized businesses too. Particularly where no in-house IT security expertise exists, we quickly establish a high level of protection.
Can weSystems take over existing firewalls?
In many cases yes. We assess whether your existing hardware and software are suitable and then take over management including migration of existing rule sets and documentation of the current state.
How quickly does weSystems respond to security incidents?
Our support is available around the clock. For critical security incidents we respond within one hour. We analyse, escalate where necessary and implement appropriate measures, without lengthy familiarisation phases because we already know your environment.
How secure is the solution in terms of data protection?
Very secure. All configurations and operational processes are GDPR-compliant. weSystems is itself certified to ISO 27001:2022. Firewalls are operated locally at your premises or in ISO-certified data centers in Germany.
How long does commissioning take?
Depending on the complexity of your network, provisioning typically takes a few days to two weeks, including configuration, documentation and handover.
What contract durations and pricing models are available?
Our services are bookable flexibly. Exact costs depend on the number of firewalls, site structure and chosen service level. We are happy to put together a transparent, individual proposal for you.