Firewall¶
One of the primary functions performed by pfSense® software is filtering traffic, deciding which traffic to pass or block between networks. This section covers fundamentals of firewalling, best practices, and required information necessary to configure firewall rules.
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
- Ethernet (Layer 2) Rules
- Floating Rules
- Time Based Rules
- Viewing the pf ruleset
- Methods of Using Additional Public IP Addresses
- Virtual IP Addresses
- Using EasyRule to Manage Firewall Rules
- Firewall Packet Flow Data
Aliases¶
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.
Firewall Guides¶
How to perform various tasks with firewall rules.
See also
Troubleshooting problems with firewall behavior.