Ensure Firewall Rule

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Ensures the existence of a firewall rule on a Windows server.

Script usage:

Firewall::Ensure-NetFirewallRule( Name: <text>, Profiles: <text>, Port: <text>, Protocol: <text>, Inbound: <true/false>, Allow: <true/false>, [Exists: <true/false>] );

Arguments:

Name	Format	Script Usage	Usage Notes
☆ Name	text	Name	This argument is required.
☆ Profiles	text	Profiles	Specify a comma separated list of profiles: "Public", "Private", and/or "Domain". (ex: "Public, Private") This argument is required.
☆ Port or Port Range	text	Port	Specify the port(s) affected by the firewall rule. Ports can be a comma separated list or a port range specified as "start-end" ex: 80-81,443 This argument is required.
☆ Protocol	text	Protocol	Specify if the protocol is "UDP" or "TCP" This argument is required.
☆ Inbound	true/false	Inbound	Specify if the connection is Inbound or Outbound. (Default = true) This argument is required.
☆ Allow	true/false	Allow	Select if you want to Allow or Block a connection. (Default = true) This argument is required.
Exists	true/false	Exists

Name

Format

Script Usage

Usage Notes

☆ Name

text

Name

This argument is required.

☆ Profiles

text

Profiles

Specify a comma separated list of profiles: "Public", "Private", and/or "Domain". (ex: "Public, Private") This argument is required.

☆ Port or Port Range

text

Port

Specify the port(s) affected by the firewall rule. Ports can be a comma separated list or a port range specified as "start-end" ex: 80-81,443 This argument is required.

☆ Protocol

text

Protocol

Specify if the protocol is "UDP" or "TCP" This argument is required.

☆ Inbound

true/false

Inbound

Specify if the connection is Inbound or Outbound. (Default = true) This argument is required.

☆ Allow

true/false

Allow

Select if you want to Allow or Block a connection. (Default = true) This argument is required.

Exists

true/false

Exists

Example:

# ensures that TCP ports 80 and 443 are allowed on "Domain" and Private profiles in Window's Firewall Firewall::Ensure-NetFirewallRule( Name: OtterHttpTCP80443, Profiles: "Domain, Private", Port: "80,443", Protocol: TCP, Inbound: true, Allow: true ); # ensures that UDP ports 5000 through 5004 and 5008 are allowed on the "Domain" profile Window's Firewall Firewall::Ensure-NetFirewallRule( Name: OtterHttpUdpTest, Profiles: "Domain", Port: "5000-5004,5008", Protocol: UDP, Inbound: true, Allow: true ); # ensures that the "OtterHttpTCP80443" Window's Firewall rule is removed IIS::Ensure-Site( Name: OtterHttpTCP80443, Exists: false );

Ensure Firewall Rule