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Radicale is a server designed to support the CalDav and CardDav protocols. It requires at least Python 3.3.


Warning: Radicale got a major release change. You need to export old version 1.x calendars *before* you install version 2.x. Please, read.

Install the radicale package.


The main configuration file is located at /etc/radicale/config.

Many of the configuration options can be changed on the command-line:

$ radicale --help


Radicale can be integrated with HTTP webservers like Apache which support the WSGI interface. Install the mod_wsgi Apache module.

This causes several options for the configuration of Radicale to be ignored, including: hosts, daemon, pid, ssl, certificate, key, protocol and ciphers keys in the [server] section of the config. Install the radicale module in the python path and write the .wsgi file (to document root).

from radicale import application

The next step is to set up a virtual host for radicale. An example:

<VirtualHost *:80>
    ServerName cal.yourdomain.org

    WSGIDaemonProcess radicale user=http group=http threads=1
    WSGIScriptAlias / /srv/http/radicale.wsgi

    <Directory /var/www>
        WSGIProcessGroup radicale
        WSGIApplicationGroup %{GLOBAL}
        AllowOverride None
        Order allow,deny
        allow from all

If you installed the Radicale package via pacman, you must also change the ownership of this directory:

# chown http:http /var/lib/radicale

Otherwise, the wsgi script will fail on its first run.

Client support

Since it uses the CalDav and CardDav protocols, it should support most clients. Currently, the officially supported list is this:

See also