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# New-OPNSenseAlias
## SYNOPSIS
Creates a new alias on an OPNSense firewall.
## SYNTAX
```
New-OPNSenseAlias -Name <String> -Type <String> -Content <String[]> [-Description <String>] [-Enabled <Boolean>] [-WhatIf] [-Confirm]
```
## DESCRIPTION
The New-OPNSenseAlias cmdlet creates a new alias on an OPNSense firewall. Aliases are used to define groups of network objects that can be referenced in firewall rules.
## EXAMPLES
### Example 1: Create a new host alias
```powershell
New-OPNSenseAlias -Name "WebServers" -Type "host" -Content "192.168.1.10", "192.168.1.11" -Description "Web Servers"
```
This example creates a new host alias named "WebServers" containing two IP addresses.
### Example 2: Create a new network alias
```powershell
New-OPNSenseAlias -Name "RemoteNetworks" -Type "network" -Content "10.0.0.0/24", "172.16.0.0/16" -Description "Remote Networks"
```
This example creates a new network alias named "RemoteNetworks" containing two network ranges.
### Example 3: Create a new port alias
```powershell
New-OPNSenseAlias -Name "WebPorts" -Type "port" -Content "80", "443" -Description "Web Ports"
```
This example creates a new port alias named "WebPorts" containing two port numbers.
## PARAMETERS
### -Name
The name of the alias to create.
```yaml
Type: String
Parameter Sets: (All)
Aliases:
Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
```
### -Type
The type of the alias (host, network, port, url, urltable, geoip).
```yaml
Type: String
Parameter Sets: (All)
Aliases:
Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
```
### -Content
The content of the alias, which depends on the type.
```yaml
Type: String[]
Parameter Sets: (All)
Aliases:
Required: True
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
```
### -Description
A description for the alias.
```yaml
Type: String
Parameter Sets: (All)
Aliases:
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
```
### -Enabled
Whether the alias is enabled.
```yaml
Type: Boolean
Parameter Sets: (All)
Aliases:
Required: False
Position: Named
Default value: True
Accept pipeline input: False
Accept wildcard characters: False
```
### -WhatIf
Shows what would happen if the cmdlet runs. The cmdlet is not run.
```yaml
Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
```
### -Confirm
Prompts you for confirmation before running the cmdlet.
```yaml
Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf
Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
```
### CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
## INPUTS
### None
## OUTPUTS
### System.Object
Returns an object representing the newly created alias.
## NOTES
This cmdlet requires a connection to an OPNSense firewall. Use Connect-OPNSense to establish a connection.
After creating an alias, you may need to apply the changes for them to take effect.
Alias names must be unique and should not contain spaces or special characters.
## RELATED LINKS
[Get-OPNSenseAlias](Get-OPNSenseAlias.md)
[Set-OPNSenseAlias](Set-OPNSenseAlias.md)
[Remove-OPNSenseAlias](Remove-OPNSenseAlias.md)