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    • Favorite 17 July 2019
      bobjonkman favorited something by wolfie: @ink_slinger also "blood is thicker than water" is actually short for "The blood of the covenant is thicker than the water of the womb" which means that friendship formed in hardship is stronger than family bonds, the exact opposite of the shorthandAnd curiosity killed the cat used to stop people […]
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      bobjonkman favorited something by inkslinger: "Pull yourself up by your bootstraps" was originally satire because that is, um, impossible. It's now stated without irony."Just a few bad apples," when referring to police, conveniently ignoring the full aphorism ials actually: One bad apple *spoils the bunch.*
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      bobjonkman favorited something by selfcare: Fix something small that gets in your way. Sew on a button, clean a grimy keyboard.
    • New note by bobjonkman 27 June 2019
      Just this once, only for this video and no other, should you #ReadTheComments!https://youtu.be/1OfxlSG6q5Y
    • bobjonkman repeated a notice by gudenau 27 June 2019
      RT @gudenau @dirb @Loki This is what a real toaster is like. https://youtu.be/1OfxlSG6q5Y
    • Favorite 27 June 2019
      bobjonkman favorited something by gudenau: @dirb @Loki This is what a real toaster is like. https://youtu.be/1OfxlSG6q5Y
    • New note by bobjonkman 25 June 2019
      I wish I had seen that article on Switzerland's Housing Co-ops this morning before I did this: https://radiowaterloo.ca/ckms-community-connections-for-24-june-2019
    • bobjonkman repeated a notice by neil 24 June 2019
      RT @neil Despite a lot of interest, there’s only a small amount of co-op housing in the UK. Most non-profit housing is charitable housing associations. Large housebuilders have a hold of the market overall."the Swiss example shows how these non-state and non-capitalist actors can build quality housing at a mass scale, if they’re encouraged — […]
    • New note by bobjonkman 12 June 2019
      Discrimination against atheists goes to BC Human Rights Tribunal: https://www.cbc.ca/news/canada/british-columbia/byron-wood-nurse-12-step-religious-discrimination-complaint-1.5172488 #Atheism /cc: @indi
    • bobjonkman repeated a notice by davehunt 9 June 2019
      RT @davehunt !joke Yesterday, I ate a clock. It was time consuming.

Calendaring Server Software

Posted by Bob Jonkman on 12th October 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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