K.K. GIT provides network architecture and security engineering focused on operational clarity, structural stability, and controlled risk.
Our work emphasizes designs that remain understandable, maintainable, and reversible under real operational conditions.
Security Through Structural Control
Contents
What We Do
- Network architecture redesign and consolidation
- High-availability boundary definition and failover design
- Security architecture that prioritizes operational stability
- Inspection and security layer insertion without structural disruption
- Vendor-aware execution with a vendor-neutral design mindset (FortiGate as a primary platform)
Case Studies
20+ to 4: HA Firewall Consolidation Using FortiGate
Consolidation of a complex multi-partner B2B network environment into two HA firewall pairs. The project focused on structural simplification, deterministic failover behavior, and reduced operational complexity.
- Multi-partner environment without direct Internet exposure
- Device count reduced from more than 20 units to 4 physical firewall units
- Operational stability improved through simplified failure domains
Transparent IPS Insertion Using FortiGate in a High-Availability Environment
Controlled insertion of a transparent IPS layer into a live HA environment. The design prioritized reversibility and contained operational risk through Layer-2 deployment and physical rollback preparedness.
- Layer-2 bridge mode deployment
- Active path insertion to reduce blast radius
- Rollback executed successfully under asymmetric routing conditions
Design Principles
- Structural clarity reduces operational risk.
- Security controls must remain reversible.
- Operational stability precedes architectural symmetry.
- Security must not increase structural opacity.
Architecture Notes
Technical notes derived from operational experience and architectural decision making. These notes document practical constraints encountered during real deployments.
- Architecture Notes Index
- Asymmetric routing behavior in live environments
- High-availability boundaries and failure domains
- ARP refresh considerations during L3 boundary replacement
- TLS acceleration and cryptographic boundary control
About K.K. GIT
K.K. GIT focuses on network architecture and security engineering for environments where operational continuity is critical.
The company emphasizes structural design approaches that remain maintainable beyond individual deployments.
Contact
For architecture consultation, infrastructure redesign, or security architecture review: