tags: #publish links: [[Networking]] created: 2021-08-15 Sun --- # DNS ## Record types - **A** - IP address for a DNS name - **CNAME** - a pointer; alias the DNS name to another DNS name - CNAME cannot be used at the root of the domain, for technical historical reasons. - Some providers e.g. [[CloudFlare]] allow it, with an implementation that just deferences and flattens to A records. - **TXT** - just a text field for varied uses ## International domain names [[Punycode]] ## DNS Tools [[Google Dig tool]] ## Public DNS servers https://docs.pi-hole.net/guides/dns/upstream-dns-providers/