systemd-resolved provide DNS resolver facility in newer version of Linux servers running systemd. I prefer manually editing /etc/resolv.conf and add resolvers. If you are running your own DNS server, then you need to disable systemd-resolved as it listen on port 53, with out disabling the service, you can’t start your DNS server. To disable systemd-resolved, … Read more
Unbound is an Open source DNS caching and recursive resolver. You can find more about unbound at https://nlnetlabs.nl/projects/unbound/about/ To install unbound on Ubuntu/Debian, run apt install unbound To start unbound systemctl start unbound Set unbound to start on boot systemctl enable unbound To configure your server to use local name servers provided by unbound, edit … Read more
CloudFlare announced privacy-first consumer DNS service. IP of CloudFlare public DNS servers are 1.1.1.1 1.0.0.1 So far i was using Google Public DNS servers as my resolver. 8.8.8.8 8.8.4.4 Quad9 Quad9 is from IMB and Global Cyber Allience. https://www.quad9.net 9.9.9.9 Other public DNS server is OpenDNS 208.67.222.222 208.67.220.220 All these DNS servers have good connectivity … Read more