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FIELD NOTE · E9 · Com2us Platform · Feb 2023 – Feb 2026

Redesigning a tangle of firewall rules

Cleaning up policy across Tencent Cloud and GCP for 600 servers and 70 databases

600 Servers / 70 DBs

In one line: Reviewed every firewall rule across Tencent Cloud and GCP for 600 servers and 70 databases, then redesigned them around server roles.
Highlights: Reviewed every long-accumulated rule
Removed duplicate and unnecessary rules
Redesigned around server roles
Tech: Firewall · Tencent Cloud · GCP · Network Security

The remaining lines fall into four groups: web, game, DB, and admin.

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