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ncruces/cloudflare.ps1

Last active September 5, 2019 01:51
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Whitelist Cloudflare's IP addresses in a Windows Firewall rule
Raw
cloudflare.ps1
param(
[Parameter(Mandatory=$true)]
[String]$rule
)
$ipv4 = (Invoke-WebRequest -UseBasicParsing -Uri "https://www.cloudflare.com/ips-v4").Content
$ipv6 = (Invoke-WebRequest -UseBasicParsing -Uri "https://www.cloudflare.com/ips-v6").Content
$ips = ($ipv4 + $ipv6).TrimEnd().Split([Environment]::NewLine)
Set-NetFirewallRule -DisplayName $rule -RemoteAddress $ips
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