![]() ![]() See Also: Firewall Rule Base Review and Security ChecklistĮach firewall rule has a standard set of rule elements against which packet properties are compared. Then, the configured action of the first rule that matches the packet is executed, and all the steps specified in the configured options of the rule are performed. First, each package is analyzed from top to bottom, and its items are compared to items in the policy rules. A firewall access policy consists of a set of rules. Whether you’re upgrading hardware or establishing a whole new environment, the order of the procedures will differ.īefore we move on to firewall rule configuration best practices, let’s look at how firewall rules work:įirewall access policy rules provide access control because they define which packets are allowed and denied. When it comes to safeguarding new or current firewall rules, firewalls have a sensible procedure to follow. See Also: Best Practices for Clean Up Your Firewall Rule Base ![]() ![]() But which ports should you block, and how should the firewall rule configurations be? This is a question every system and network administrator asks themselves from time to time. If you do not configure ports and policies correctly, the firewall will not protect your environment as it should. Dangerous Firewall Rule Configuration Examples ![]()
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