DracDrac can be:
- The word for 'dragon' in Catalan and other languages, from Latin DRACO. See European dragon (particularly the section on Catalan dragons).
- The name of a dragon-like beast that, according to French folklore, terrorised the town of Beaucaire, on the River Rhône. See Beaucaire.
- DRAC (Dynamic Relay Authorization [or Authorisation] Control), a daemon that dynamically updates a relay authorisation map for sendmail. It provides a way to allow legitimate users to relay mail through an SMTP server, while still preventing others from using it as a spam relay. User's IP addresses are added to the map immediately after they have authenticated to the POP or IMAP server. By default, map entries expire after 30 minutes, but can be renewed by additional authentication. Periodically checking mail on a POP server is sufficient to do this. The POP and SMTP servers can be on different hosts.
- The Drac are an alien species in Barry B. Longyear's The Enemy Papers stories.
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