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nickboucher/dns-cloudflare-toggle

Created July 19, 2023 13:54
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Toggle Cloudflare DNS on MacOS
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dns-cloudflare-toggle
#!/usr/bin/env zsh
if networksetup -getdnsservers Wi-Fi | grep -q '1.1.1.1'; then
networksetup -setdnsservers Wi-Fi "Empty"
echo "Cloudflare DNS: \033[1mDisabled\033[0m"
else
networksetup -setdnsservers Wi-Fi 1.1.1.1 1.0.0.1 2606:4700:4700::1111 2606:4700:4700::1001
echo "Cloudflare DNS: \033[1mEnabled\033[0m"
fi
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To make this command generally accessible via CLI, run:

sudo mv dns-cloudflare-toggle /usr/local/bin/dns-cloudflare-toggle
sudo chown $(whoami):admin /usr/local/bin/dns-cloudflare-toggle
sudo chmod 755 /usr/local/bin/dns-cloudflare-toggle

Then, to toggle Cloudflare DNS run:

dns-cloudflare-toggle

This is helpful for consenting to captive portals for public wifi that are not configured to support private DNS servers.

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