• dnsmasq

  • DNS not resolving - dnsmasq setup

  • dnsmasq on macos

  • How to setup dnsmasq

  • http://osxdaily.com/2015/12/05/change-dns-server-settings-mac-os-x/ - setup dnsmasq

• https://dnsleak.com/

• http://osxdaily.com/2017/03/08/clear-dns-cache-macos-sierra/

• http://quad9.net/

• IPv6 resolver

• https://letsdebug.net/ - use DNS-01 to troubleshoot private

• https://github.com/isc-projects/bind9

  • A real nameserver at home

  • Automate local DNS with Bind and Terraform

• GoDaddy DNS for work

  • https://www.godaddy.com/

  • Sign In with Google

  • Click Domains

  • Settings → Delegate Access

• VPN client over-riding DNS on macOS - Interesting list of commands

  • http://rubyforge.org/projects/dnssd/

• Tools

  • LDNS

  • https://github.com/ogham/dog

  • https://dnsleaktest.com/what-is-a-dns-leak.html

  • xip.io

  • sslip.io

• Ubuntu Docs

  • 5 resolve.conf

  • resolveconf

  • resolvectl

  • Netplan

# testing
nslookup <any>.localdev.me # return loopback

scutil --dns

# DNS issue troubleshooting
resolvectl status
cat /etc/resolv.conf
docker info | grep -i dns

dns-sd -G v4 google.com
dns-sd -q google.com

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

networksetup -setdnsservers Wi-Fi 8.8.8.8 8.8.4.4

man systemd-resolved.service
resolvectl status

# macos flush
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

• DNS flush

  sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
  # need something new for macos Sequoia v15 ?