Firewall
Perimeter and network security engineering
We have audited firewalls holding 1,400 rules where fewer than 200 were still needed, several permitting any-to-any traffic added years ago as a temporary fix. A firewall is not a product you install. It is a policy you maintain, and an unmaintained one is a false sense of security with a support contract attached.
What is included.
Relevant whether you are buying your first next-generation firewall, migrating between vendors, or trying to clean up a rule base nobody has dared touch.
- Design and deploymentSizing, high-availability pairing, interface and zone design, routing integration and a documented rollback plan before a single cable moves.
- Vendor migrationRule translation between platforms with human review — automated converters replicate legacy mistakes faithfully. We migrate intent, not just syntax.
- Rule base audit and cleanupIdentification of shadowed, redundant, overly permissive, expired and unused rules, then staged removal with traffic verification at every step.
- Network segmentationZone architecture that separates users, servers, payment systems, guest wireless, OT and management — so one compromised laptop cannot reach your database.
- Advanced feature enablementIntrusion prevention, application control, TLS inspection, URL filtering, geo-blocking and DNS security, tuned rather than switched on and left to alert into nothing.
- Secure remote accessVPN and zero-trust access with multi-factor authentication, device posture checks and per-application authorization instead of full network access.
Four phases, in this order.
The order matters more than the speed. Every phase has an exit condition you sign off before the next one starts.
Audit the current policy
We export the running configuration and analyze it against real traffic logs to see what the rules permit versus what is actually used.
Design the target state
Zone model, rule taxonomy, naming standards and change process, reviewed with your team before any change is made.
Implement in stages
Changes are grouped, scheduled in approved windows, and verified after each stage. Rollback is prepared for every window.
Operate and review
Quarterly rule recertification, firmware and signature currency checks, and policy hygiene reporting to stop the drift returning.
What you receive.
- Firewall configuration audit with risk-ranked findings
- Target zone and segmentation architecture diagram
- Cleaned, documented and owner-attributed rule base
- Change and recertification process
- As-built documentation and rollback runbooks
What we work with.
- Fortinet FortiGate
- Palo Alto Networks
- Cisco Firepower
- Sophos XG
- pfSense
- OPNsense
- Azure Firewall
- Cloudflare
- IPsec / SSL VPN
We hold no exclusive reseller obligations. Recommendations are made on fit, your team's capacity to operate the thing, and local support availability — in that order.
Firewall, specifically.
Which firewall vendor should we buy?
It depends on your throughput, your inspection requirements, what your team can realistically operate, and local support availability. We size against your actual traffic and give you two or three costed options with the trade-offs stated. We are not a single-vendor shop.
Can you clean up rules without breaking production?
Yes, by evidence rather than assumption. We correlate each rule against hit counts and traffic logs over a monitoring period, disable candidates in stages, and watch. Nothing is deleted until it has been dormant through a full business cycle including month-end.
Do you support the firewall after deployment?
We offer managed firewall operations: change requests, signature and firmware currency, quarterly recertification and incident support, under an agreed response time.
Often scoped alongside this.
Cybersecurity
Full-program security: risk assessment, policy, controls, audit readiness and the people to run it.
→VAPT
We break in the way an attacker would, then hand you the exact path, the evidence and the fix.
→SIEM
Logs collected, correlated and actually watched — with named analysts and a response time you can hold us to.
→Scope your firewall engagement.
Send us the shape of your environment. You will get a written scope, a fixed price and a delivery timeline — usually within two business days.
Scoping calls are free · Reply within one business day