samanthanguyen.me / dns.md
An assortment of interesting notes on DNS records.
dns.md edited
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Some applications and services provide integration through custom DNS records (usually TXT).

  • ATProtocol: TXT record of name _proto with value did={did:plc identifier}
  • Discord: TXT record of name _discord with value dh={random string}
  • GitHub Pages: TXT record of name _github-pages-challenge-{username} with value {random string}
  • Google Workspaces: The following records (last time I configured):
    • MX record of name {domain} with value alt4.aspmx.l.google.com
    • MX record of name {domain} with value alt3.aspmx.l.google.com
    • MX record of name {domain} with value alt2.aspmx.l.google.com
    • MX record of name {domain} with value alt1.aspmx.l.google.com
    • TXT record of name google._domainkey with value v={value}; k={value}; p={value} (enforces DKIM, DomainKeys Identified Mail)
      • v: version (DKIM1)
      • k: key type (RSA)
      • p: public key
    • TXT record of name {domain} with value "v=spf1 include:_spf.google.com ~all" (enforces SPF, Sender Policy Framework)