On-premises infrastructure security
On-Premises Network, Firewall and Data Center Security Audit
Identify unintended pathways, overbroad rules and weak operational controls that allow an intrusion to spread across on-premises systems and data center infrastructure.
The business problem
Why this assessment matters.
On-premises and data center networks accumulate temporary rules, inherited trust, legacy systems and undocumented dependencies. Over time, the intended architecture can diverge from the traffic that firewalls, VPNs, switches, virtualization platforms and administrative paths actually permit.
Our audit connects diagrams and standards to sampled configurations and observed control operation across data center and corporate network environments. The result is a prioritized view of reachable assets, risky trust paths and infrastructure-governance gaps.
Audit coverage
What we assess.
Final scope reflects your environment, critical systems, risk profile and assurance objective.
On-premises and data center architecture and security zones
Firewall and security-group rule bases
Core network, server and virtualization management planes
Ingress, egress and administrative exposure
Internal segmentation and lateral-movement controls
VPN, remote access and wireless security
IDS, IPS, DNS and traffic logging
Rule review, recertification and change governance
Assessment process
How the audit works.
Testing is evidence-led, risk-based and designed to protect business operations.
- Map critical assets, zones, entry points and trust dependencies
- Review representative device configurations and rule exports
- Analyze overly permissive, shadowed and stale access
- Validate segmentation with approved connectivity tests
- Develop a risk-ranked cleanup and architecture roadmap
Engagement outputs
What your team receives.
Grounded in the evidence, testing and risk context collected during this engagement.
Firewall rule-risk analysis
Segmentation validation results
Infrastructure management-plane findings
Rule cleanup and hardening plan
Retest evidence for corrected paths
Standards and guidance
A recognizable basis for conclusions.
Applicable standards organize testing and reporting while the actual environment determines risk.
CIS Controls
NIST SP 800-41
NIST CSF 2.0
PCI DSS network controls
Vendor hardening guidance
Frequently asked questions
Planning your network, firewall and data center assessment.
Can you assess an on-premises data center?
Yes. Scope can include network zones, firewalls, switches, server and virtualization management networks, remote access, administrative paths and connections to cloud services.
Can you test internal segmentation?
Yes. Approved connectivity and access tests verify whether zone boundaries operate as designed.
Will you make firewall changes?
No. We provide reviewed change recommendations; your authorized operators implement them through existing change control.
Can this include SD-WAN and cloud networking?
Yes. Hybrid routing, cloud security groups, transit services and software-defined controls can be assessed together.
What evidence should we prepare?
Current diagrams, asset context, device inventories, rule exports, change records and recent access reviews are a useful starting set.
Related assessments
Follow connected attack paths.
Request a Network, Firewall and Data Center audit
Discuss scope, timing, access requirements and the evidence your stakeholders need.