The Firewall Change Log is designed to track all changes made to the firewall configuration in compliance with ISO 27001 standards. This log ensures transparency, accountability, and the ability to trace firewall changes for security and audit purposes.
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Log Identification:
- Log ID: Assign a unique identifier to each log entry for easy reference and tracking.
- Date: Record the date when the change was made.
- Time: Specify the time when the change was implemented.
- Change Type: Indicate the type of change (e.g., rule modification, policy update, access restriction, etc.).
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Change Details:
- Description: Provide a clear and concise description of the change made, including the purpose and objective.
- Requested By: State the name or department of the person who initiated or requested the change.
- Approved By: Specify the name or position of the authorized person who approved the change.
- Justification: Explain the rationale behind the change, including any risk assessments or security considerations.
- Impact Assessment: Assess the potential impact of the change on network security, availability, and performance.
- Risk Assessment: Evaluate the associated risks and mitigation measures for the proposed change.
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Configuration Changes:
- Before Change: Document the original firewall configuration, including rules, policies, and settings.
- After Change: Capture the new or modified firewall configuration after the change implementation.
- Configuration Parameters: List the specific firewall settings that were altered, such as port numbers, IP addresses, protocols, etc.
- Rule Modifications: If applicable, specify any changes made to firewall rules or access control lists (ACLs).
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Testing and Verification:
- Testing Plan: Outline the testing procedures conducted to verify the effectiveness and correctness of the change.
- Test Results: Record the results of the testing, including any issues encountered, if applicable.
- Verification: Indicate whether the change was successfully tested and verified.
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Change Implementation:
- Implementer: Provide the name or department of the individual responsible for implementing the change.
- Change Window: Specify the authorized time period during which the change was implemented.
- Rollback Plan: Describe the contingency plan or procedure to revert the changes in case of unexpected issues or failures.
- Implementation Notes: Document any additional information or observations during the change implementation process.
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Approval and Review:
- Change Review: Indicate whether a post-implementation review of the change was conducted.
- Review Date: Record the date of the review, if applicable.
