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This page will explain how to install Apple's iCal Server on Ubuntu Server, though desktop variants should also work without any problems.
What is CalDAV? Explain that here, together with an explanation between CalDAV and WebDAV/webcal, with a link to a page describing how to make that happen.
Install procedure for Ubuntu Server 7.10
Installing Apple's iCal Server is fairly trivial once you know what to do. We do need to download some additional packages using apt-get, and we need to download some software using subversion. Most users will be familiar with apt-get, many with subversion. If you're not familiar with subversion, don't panic. This guide will be a detailed, step by step howto, showing exactly which commands to enter and when.
Ready? * Log into the server console or via ssh, so you can enter commands, and run sudo -s to get a root shell. * Install subversion: apt-get install subversion * Execute the following commands. It's ok to simply copy and paste them. It's quite alot of packages, and it may take a while for all of them to download and install.
apt-get install libkrb5-dev apt-get install attr apt-get install subversion apt-get install curl apt-get install build-essential apt-get install libssl-dev apt-get install python-pysqlite2 apt-get install bzip2 apt-get install curl apt-get install zope3 apt-get install python-xml apt-get install python-pyopenssl apt-get install python-dateutil apt-get install python-xattr apt-get install python-pysqlite2 apt-get install python-twisted apt-get install python-vobject apt-get install python-kerberos
* We now need to edit our /etc/fstab file and add user_xattr to the options for the partition containing the CalDAV server, / in this case: vim /etc/fstab. My / before edit: UUID=94a96528-c889-45a1-bc98-d9d02ecdd59c / ext3 defaults,errors=remount-ro 0 1 After edit: UUID=94a96528-c889-45a1-bc98-d9d02ecdd59c / ext3 defaults,errors=remount-ro,user_xattr 0 1
* We must now remount the filesystem: mount -o remount / * We'll install the server in /opt, so lets change into it: cd /opt * Let's download the server software itself using subversion: svn checkout http://svn.macosforge.org/repository/calendarserver/CalendarServer/trunk CalendarServer * Subversion has downloaded alot of software, and created a directory for us, called CalendarServer. Let's change into it: cd CalendarServer * And run a script to download some necessary packages, configure, etc: ./run -s * Ok, our CalDAV server is almost ready for action. Let's copy the test configuration so we can get it up as quickly as possible. Real configuration can wait: cp conf/caldavd-test.plist conf/caldavd-dev.plist * We do need to do some configuration though: vim conf/caldavd-test.plist
ADD PRECISE DESCRIPTION OF NECESSARY EDIT FOR EXTERNAL CONNECTIONS AND FOR EVOLUTION USERS!
* Run the server: ./run * That's it!
References: Cam's blog: http://cam.moobox.org/blog/?p=5 Lenfis blog:http://blog.jl42.de/index.php?/archives/231-Installation-of-the-Apple-Calendar-Server-on-Ubuntu-Edgy.html http://trac.macosforge.org/projects/calendarserver/wiki/