Citadel/UX

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Script error: No such module "Infobox".Template:Template other Script error: No such module "Check for unknown parameters".Script error: No such module "Check for conflicting parameters". Citadel (originally referred to as "Citadel/UX" to disambiguate it from other implementations) is a collaboration suite (messaging and groupware) that is directly descended from the Citadel family of programs which became popular in the 1980s and 1990s as a bulletin board system platform. It is designed to run on open source operating systems such as Linux or BSD. Although it is being used for many bulletin board systems, in 1998 the developers began to expand its functionality to a general purpose groupware platform.

In order to modernize the Citadel platform for the Internet, the Citadel developers added functionality such as shared calendars, instant messaging, and built-in implementations of Internet protocols such as SMTP, IMAP, Sieve, POP3, GroupDAV and XMPP. All protocols offer OpenSSL encryption for additional security.[1]

Users of Citadel systems also have available to them a web-based user interface which employs Ajax style functionality to allow application-like interaction with the system.Script error: No such module "Unsubst".

Citadel uses the Berkeley DB database for all of its data stores, including the message base.Script error: No such module "Unsubst".

Citadel became free and open-source software subject to the terms of the GPL-2.0-or-later license in 1998.[2][3] In 2006 Citadel was relicensed to the GPL-2.0-only license.[4] In 2007 Citadel was relicensed again to the GPL-3.0-only license.[5][6]

References

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External links

  • Script error: No such module "Official website".Script error: No such module "Check for unknown parameters".
  • Review of Citadel by Carla Schroder of Enterprise Networking Planet: Part 1 Part 2
  • Mod_auth_citadel, an Apache Web Server authentication module for Citadel by Stuart Cianos

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