Powershell Script to toggle DNS entries between CloudFlare and PiHole

toggle-dns.ps1

if ((Get-DnsClientServerAddress -AddressFamily IPv4 -InterfaceAlias 'Ethernet').ServerAddresses -like '1.1.1.1') { 
    Set-DnsClientServerAddress -InterfaceAlias 'Ethernet' -ServerAddresses ('192.168.1.2');
    Disable-NetAdapterBinding -Name Ethernet -ComponentID ms_tcpip6 -PassThru
}
else
{
    Enable-NetAdapterBinding -Name Ethernet -ComponentID ms_tcpip6 -PassThru
    Set-DnsClientServerAddress -InterfaceAlias 'Ethernet' -ServerAddresses ('1.1.1.1','1.0.0.1');
    Set-DNSClientServerAddress -InterfaceAlias 'Ethernet' –ServerAddresses ('2606:4700:4700::1111','2606:4700:4700::1001');
}    
Clear-DnsClientCache;
Get-DnsClientServerAddress;