Firewall Configuration and Clean-Up of Existing Network Firewalls

As part of a network optimization initiative, I was assigned to review, reconfigure, and clean up the existing firewall infrastructure to improve security posture, performance, and manageability.

Key Responsibilities and Deliverables:

Performed a full audit of existing firewall rules, objects, and NAT policies.

Identified and removed obsolete, duplicate, or unused firewall rules to reduce clutter and minimize attack surface.

Consolidated and optimized policy sets, ensuring proper segmentation between internal VLANs, servers, and external interfaces.

Applied security best practices based on vendor recommendations and internal compliance standards.

Reconfigured FortiGate firewalls (and/or Cisco ASA, depending on client) for:

VPN access (IPSec / SSL)

Web filtering & application control

Logging and alerting integration

Implemented backup and rollback plans before applying changes.

Documented all changes in a detailed report for audit and future reference.