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==== How to Set Up Aliases in pfSense ====

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===== 5.1.1 Accessing the Aliases Page =====

# Log into the '''pfSense''' web interface.
# Navigate to '''Firewall &gt; Aliases'''.
# Click '''Add'''

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===== 5.1.2 Creating an Alias =====

# In the Name field, enter a descriptive name for your alias (e.g., “WebServers” or “BlockedIPs”).
# Select the Type of alias you want to create:
#* Host: For single IP addresses
#* Network: For subnets
#* Port: For port numbers
#* URL: For lists of IPs or networks from a URL
# In the Description field, enter a brief explanation of the alias’s purpose. Here, I would enter <code>mailserver</code>.
# In the Content box, enter the values for your alias:
#* For IP aliases: Enter IP addresses, one per line, such as our mailserver at <code>192.168.5.2</code>.

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===== 5.1.3 Using Aliases in Firewall Rules =====

# Go to '''Firewall &gt; NAT'''.
# Add a new rule or edit an existing one.
# In the source or destination fields, you can now select your alias from the drop-down menu.
# For port fields, you can select port aliases.

Example rule using aliases:

* '''Action''': Pass
* '''Interface''': WAN
* '''Source''': Any
* '''Destination''': WebServers (alias)
* '''Destination Port''': WebPorts (alias)

This rule allows incoming traffic to the IP addresses defined in the <code>WebServers</code> alias on the ports defined in the <code>WebPorts</code> alias.

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