Duplicate windows firewall rules5/1/2023 Set-NetFirewallSettingThis command configures global firewall behaviors that apply regardless of the network profile currently in use.This allows each profile to have distinct settings. Set-NetFirewallProfileTo set specific settings for individual profiles, use the Set-NetFirewallProfile command.This is useful if a rule was created without a specified name, thereby receiving a random GUID as it’s name, and it is preferred to have a human-readable name assigned. Rename-NetFirewallRuleTo rename an existing firewall rule, use the Rename-NetFirewallRule command. These settings include such options as certificate options, packet queueing, or authorization lists. Get-NetFirewallSettingThe global firewall settings can be retrieved by using the Get-NetFirewallSetting command.Get-NetFirewallProfileThis command shows the currently configured options for a specified profile, such as the Domain, Private, or Public profiles.It is advised to always run this command with the WhatIf parameter if not targeting a specific rule or set of rules. Enable-NetFirewallRuleLike the Disable-NetFirewallRule, this command will enable a previously disabled rule or set of rules.If this command is run without any parameters it will enable all previously disabled rules.The rule will still exist, but not actively modify any network data.If you run this command without any parameters, it will disable all active rules on the target computer. Disable-NetFirewallRuleThis will disable a previously enabled firewall rule.Copy-NetFirewallRuleThis command will copy an existing firewall rule and all associated filters to the same or different policy store.Though we don’t cover them all here, a few notable commands are shown below to demonstrate how extensive the module is. There are many other commands available within the NetSecurity module. If you have a domain GPO that defines firewall rules, this will remove any that may conflict with those GPO defined rules. Remove-NetFirewallRule -Enabled 'False' -PolicyStore 'ad.local.test\firewall_gpo'Ī useful command, but potentially dangerous, is running Remove-NetFirewallFule by itself which removes all of the static local firewall rules that have been created. The below rule will remove all disabled rules contained within the policy firewall_gpo in the ad.local.test domain. An example of this type of functionality is below. It’s important to note that the Remove-NetFirewallRule can remove multiple rules at once. Remove-NetFirewallRule -DisplayName "Block WINS" When you do so, it is often wise to use the WhatIf parameter to verify that the rule is the correct one to remove. To do this, run the command Remove-NetFirewallRule.
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