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One of the primary functions performed by pfSense® software is filtering traffic. This chapter covers fundamentals of firewalling, best practices, and required information necessary to configure firewall rules.
One of the primary purposes of pfSense® software is to act as a firewall, deciding which traffic to pass or block between networks.
Managing Firewall Rules¶
Firewall rules control traffic passing through the firewall. These topics describe how to create and manage rules, plus settings related to rules.
- Firewalling Fundamentals
- Introduction to the Firewall Rules screen
- Ingress Filtering
- Egress Filtering
- Firewall Rule Best Practices
- Rule Methodology
- Configuring firewall rules
- Floating Rules
- Time Based Rules
- Viewing the pf ruleset
- Methods of Using Additional Public IP Addresses
- Virtual IP Addresses
- Using Easyrule to Add Firewall Rules
Aliases are collections of addresses that allow many hosts to be acted upon by a small number of firewall rules. They can greatly simplify a ruleset and make it easier to understand and manage.
How to perform various tasks with firewall rules.
Troubleshooting problems with firewall behavior.