A firewall audit is a procedure that gives you insight into your firewall’s current access and connections, finds weaknesses, and tracks modifications.
A review of the firewall change process is usually the first technical step in a firewall audit. This phase ensures that requested changes have been appropriately approved, implemented, and documented. Depending on whether you have a tool to assist you or are doing it manually, you can accomplish this in a few different ways.
A review of the rulebase is usually the second technical step in a firewall audit (also called a policy). Because this stage has typically been difficult to do and is extremely technology-dependent, the methodology used by auditors differs greatly.
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