windows11doh

DoH for windows 11

1. Prepare the INI File:

   • Create a file at C:\path\to\doh_servers.ini.
   • Add DoH servers in the format: IP=DoH_Template_URL (one per line), e.g.:

     8.8.8.8=https://dns.google/dns-query
     1.1.1.1=https://cloudflare-dns.com/dns-query
     

2. Run the Script:

   • Open PowerShell as Administrator.
   • Execute: powershell -ExecutionPolicy Bypass -File path\to\this_script.ps1

3. How it Works:

   • Reads DoH servers from the INI file.
   • Tests the availability of each DoH server.
   • Configures the system to use an available DoH server.
   • Blocks non-DoH DNS traffic using firewall rules.
   • Runs continuously, checking and enforcing DoH settings every 30 seconds.

4. Stopping the Script:

   • Use Ctrl + C to terminate execution.
   • Remove the firewall rules manually if needed:

     Remove-NetFirewallRule -DisplayName "Block Outbound DNS (UDP 53)"
     Remove-NetFirewallRule -DisplayName "Block Outbound DNS (TCP 53)"