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    • New note by bobjonkman 8 November 2019
      Elois and Morlocks, from another work of fiction co-opted into a user manual for the 1%
    • Favorite 8 November 2019
      bobjonkman favorited something by inkslinger: The fan theory that the Jetsons and the Flintstones are actually contemporaneous to one another -- the Jetsons' sky cities being the land of the wealthy (or formerly wealthy, perhaps, since capitalist wage relations still exist, even in a world with literal robot servants) and the Flintstones being the descendants […]
    • bobjonkman repeated a notice by inkslinger 8 November 2019
      RT @inkslinger The fan theory that the Jetsons and the Flintstones are actually contemporaneous to one another -- the Jetsons' sky cities being the land of the wealthy (or formerly wealthy, perhaps, since capitalist wage relations still exist, even in a world with literal robot servants) and the Flintstones being the descendants of the poor […]
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      bobjonkman favorited something by ericxdu23: Hi. I'm still here.
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      bobjonkman favorited something by hubert: ♲ @cryptpad@social.weho.st: Exactly 5 years ago at 16:42, was the first CryptPad commit by @cjdelisle, the start of a very ambitious project to restore privacy in collaboration tools. We believed in it 5 years ago and we thank the 200 supporters and 10000 weekly users from 150 countries that have […]
    • New note by bobjonkman 24 October 2019
      Best thread in a long time! nEVILle Park's ( @nev ) #Arachtober: https://social.coop/@nev/102887815460533048
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      bobjonkman favorited something by phooky: Borough Pluralization Chart:ManhattaBrooklynsBronxiiQuinoaStatins Island
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      bobjonkman favorited something by banjofox: Middle Earth actually had a second set of well-known rings. Although not as powerful at the main set, these were certainly nothing to shake a finger at. Silver in color, they, like their gold counterparts were usable by anyone. Their only real power was the ability to provide near instant […]
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      bobjonkman favorited something by thj: Cool teardown video from Applied Science that reveals how analog era snapshot cameras printed the date on the film negative:https://www.youtube.com/watch?v=ezME4_xMMnkWith the segmented digits, you'd think it's a tiny fluorescent display, but it's actually more interesting that that.
    • New note by bobjonkman 6 October 2019
      And now I've discovered your website, and I'll be rabbitholing for the rest of the afternoon... @mattskala

Calendaring Server Software

Posted by Bob Jonkman on October 12th, 2012

I’m looking for a free/libre calendar server to run on a GNU/Linux server.

It needs to have CalDAV connectivity, so that I can use Evolution, Sunbird or Thunderbird/Lightning as my only client. Ideally, it will also have a Web interface for both administration and calendar viewing, exports to iCal (.ics) files, supports iMIP, and offers Atom/RSS feeds of calendar items.

Here’s what I’ve found so far. If you know of others, please leave a comment.

There’s also a list at CalConnect’s CalDAV Servers

Name WebUI Export iCal (.ics) CalDAV
Admin View Edit iCal (.ics) iMip Atom/RSS
Kolab              
DAViCal              
phpGroupWare       No     No
Chandler Project              
Bedework              
Zimbra Yes, but.. Yes Yes Yes   No Outlook only
EGroupware Community Version              
WebCalendar             No
Darwin Calendar Server              
Tryton Calendar              
ownCloud Yes Yes, but not Public, Read-only Yes No No No Yes
Citadel ? ? ? ? ? ? ?
Baikal ? ? ? ? ? ? ?
Horde ? Yes Yes Yes ? Maybe Yes

WordPress Plugins

The other calendars I’ve been trying are WordPress plugins. There is much promise in their description blurbs, but so far I’ve rejected most:

Name Export iCal (.ics) CalDAV Notes
iCal (.ics) iMip Atom/RSS
Calendar JCM         Rejected: no longer supported
Event Calendar / Scheduler         Rejected: missing .php modules when running
The Events Calendar         Rejected
WP Events Calendar Yes, with iCal for Events Calendar plugin   No No Works
My Calendar Only lists current month   Partial  
CalPress Pro ? ? ? ? This is a commercial plugin;
All-in-One Event Calendar by Timely By tweaking the “Add to Google” URL ? ? WebCal Possible privacy concern
  • 11 January 2011
    Originally posted
  • 26 March 2011
    Added Linuxaria’s suggestions
  • 16 April 2011
    Added WordPress plugin info; added CalDAV column; filled in some attributes
  • 11 October 2012
    Updated feature list for Zimbra
    I’ll be writing a review of Zimbra Open Source Edition soon, detailing some of my experiences (eg. requires Flash for the administrative Web interface)
  • 12 October 2012: Put WordPress calendars in table format, added My Calendar
  • 5 November 2012: Added Dosch’s suggestions
  • 16 November 2012: @Encyclomundist dents about Citadel.org
  • 26 September 2013: I’ve started to use ownCloud 5.0 as a calendar repository accessed with Lightning using WebCal. ownCloud doesn’t publish an iCal feed or have a public read-only view, but since it’s Free Software constantly under improvement I’ll stick with it for a while.
  • 9 November 2013: I think @postblue turned me on to Baikal: Using #Baikal to sync tasks, contacts and calendars
  • 9 November 2013: I’m now using Timely All-In-One on some blogs, will be upgrading others. It’s not the perfect iCal plugin, but the best one yet.
  • 9 November 2013: @McScx and @lxw37 both introduce me to Horde.
  • 13 August 2015: Just discovered Blaise Alleyne’s post on Degooglifying (Part IV): Calendar. This is pretty much the same solution I’ve settled on; ownCloud + Thunderbird and Lightning. I’m not quite as advanced as Blaise on the mobile front, though.

This is a “living” post, so it will float back to the top of the blog as I update it.

–Bob.

 
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