Network Exposure and Firewall Rule Review
Check what is reachable from the internet.
Added October 15, 2026. Written with AI assistance and checked for clarity and placeholders; not reviewed by a lawyer, accountant, clinician or other professional. How these prompts are made
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Review network rules. Firewall or security group rules, ports and sources, with addresses masked: [NETWORK_RULES]. Services intended to be public: [PUBLIC_SERVICES]. Flag rules open to all addresses, management ports exposed, unused rules and rules with no description. Propose tightening and a rule review process. Return a table, a safe change plan with testing and rollback, and a quarterly review. Changes must be made carefully on systems I own. Add a worked rule review: rule 14 allows inbound management access from any address; high; restrict to the office address range or use a secure access service. Rule 22 has no description and no recent traffic; ask the owner, then remove after a monitoring period. Rule 31 allows all ports between two internal groups; medium; limit to required ports. Counts: 3 problem rules out of 40, 7.5 percent. Add a change log and a quarterly rule review. Test each change in a maintenance window with a way to revert quickly.
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