Firewall Configuration & Rule Review

I provide in-depth firewall security assessments to evaluate rule sets, configuration practices, and overall posture across on-premises and cloud-based firewalls. This service ensures that your firewall is optimized to enforce least privilege, prevent unauthorized access, and align with security best practices such as CIS Benchmarks, NIST SP 800-41, and Zero Trust Architecture.

Identify in-scope firewalls (e.g., perimeter, internal, cloud-native firewalls like Azure NSGs, AWS Security Groups)

Define assessment goals: rule audit, segmentation review, configuration hardening

Export and collect firewall configurations and rule sets

Gather network architecture diagrams, asset inventories, and access control policies

Interview relevant teams for context around rule intent and exceptions

Evaluate rules for overly permissive access, shadowed/unused rules, and misconfigurations

Assess rule base for alignment with least privilege, network segmentation, and service-specific access

Analyze logging, alerting, and update/patch practices

Deliver a detailed firewall review report including:

Provide actionable remediation guidance

Support implementation of rule and config changes

Optionally perform post-remediation validation and retesting

Firewall rule audit report with security findings and risk categorization

Rule optimization recommendations and change planning support

Compliance alignment overview (CIS, NIST, Zero Trust principles)

Executive summary and technical appendix for both leadership and engineering teams

Find out more: https://contra.com/s/cAoYcgAm-firewall-configuration-and-rule-review