🔒 Security-Focused IPv6 DNS Guide

A curated list of public DNS providers that block malware, phishing, and offer enhanced security via IPv6.

📋 Top 15 IPv6 Security DNS Providers

# Provider Name Primary IPv6 Address Secondary IPv6 Address Security Feature
1 Quad9 (Secure) `2620:fe::fe` `2620:fe::9` Blocks threats, DNSSEC, DoT/DoH support.
2 AdGuard DNS (Default) `2a10:50c0::ad1:ff` `2a10:50c0::ad2:ff` Ad blocking, malware/phishing protection.
3 Cloudflare (Security) `2606:4700:4700::1112` `2606:4700:4700::1002` Malware and adult content blocking (`1.1.1.2` equivalent).
4 OpenDNS (FamilyShield) `2620:119:35::35` `2620:119:53::53` Malware and basic adult content filtering.
5 CleanBrowsing (Security) `2a0d:2a00:1::1` `2a0d:2a00:2::1` Blocks malware, phishing, and explicit content.
6 NextDNS `2a0d:2406:1801::` `2a0d:2406:1802::` Customizable security lists (e.g., threat intelligence feeds).
7 Verisign Public DNS `2620:74:1b::1:1` `2620:74:1c::2:2` High reliability with mandatory DNSSEC validation.
8 Yandex.DNS (Safe) `2a02:6b8:0:1::feed:1ff` `2a02:6b8:0:1::feed:1ff` Blocks viruses and fraudulent websites.
9 Neustar UltraDNS (Threat) `2610:a1:1018::3` `2610:a1:1019::3` Threat protection and malware blocking.
10 DNS.SB `2a09::` `2a11::` Strict DNSSEC and DNS over TLS (DoT) support.
11 Control D `2606:1a40::` `2606:1a40:1::` Powerful rule engine for advanced filtering.
12 Google Public DNS (Standard) `2001:4860:4860::8888` `2001:4860:4860::8844` High security baseline, supports DNSSEC and DoT/DoH.
13 dns0.eu (Family) `2a0f:fc80::3` `2a0f:fc81::3` Malware and adult content filtering (European focus).
14 AdGuard DNS (Family) `2a10:50c0::bad1:ff` `2a10:50c0::bad2:ff` Ad blocking and adult content protection.
15 CleanBrowsing (Adult Filter) `2a0d:2a00:1::1` `2a0d:2a00:2::1` Blocks adult and malicious content.

⚙️ Configuration Examples

1. Linux/macOS (Terminal via `networksetup`)

Use this command on macOS to temporarily set the DNS for your Wi-Fi interface. Adapt the service name for Ethernet.

# Example using Quad9 (Secure) IPv6 addresses

sudo networksetup -setdnsservers "Wi-Fi" 2620:fe::fe 2620:fe::9

# Verify the change
networksetup -getdnsservers "Wi-Fi"

2. Linux (Editing `systemd-resolved.conf`)

For distributions using `systemd-resolved`, modify the configuration file to make the change permanent.

# Edit the configuration file
sudo nano /etc/systemd/resolved.conf

# Add or uncomment the DNS and DNSSEC lines:
# [Resolve]
# DNS=2620:fe::fe 2620:fe::9
# DNSSEC=true

# Restart the service to apply changes
sudo systemctl restart systemd-resolved

3. Windows (PowerShell)

Run PowerShell as Administrator to configure the DNS for a specific network adapter by its index number.

# Open PowerShell as Administrator

# Find your network adapter's index (look for the "InterfaceIndex")
Get-NetAdapter | Select-Object Name, InterfaceIndex

# Set the IPv6 DNS for the interface (e.g., index 12, using AdGuard)
Set-DnsClientServerAddress -InterfaceIndex 12 -ServerAddresses ("2a10:50c0::ad1:ff","2a10:50c0::ad2:ff")

# Verify the settings
Get-DnsClientServerAddress -InterfaceIndex 12

4. Router Configuration (Recommended)

The best method for network-wide security is configuring the DNS directly on your router. Look for **WAN**, **Internet Settings**, or **DHCP/DNS Settings** in your router's admin panel to update the **IPv6 DNS Servers** fields.

💡 Security Best Practices