KOPANO-ICAL.CFG(5)

NAME
kopano-ical.cfg - The Kopano iCal/CalDAV gateway configuration file

SYNOPSIS

ical.cfg

DESCRIPTION

The ical.cfg is a configuration file for the Kopano iCal/CalDAV Gateway. ical.cfg contains instructions for the software to set up the logging system and to enable or disable the normal or SSL part of the service.

FILE FORMAT

The file consists of one big section, but parameters can be grouped by functionality.

The parameters are written in the form:

name = value

The file is line-based. Each newline-terminated line represents either a comment, nothing, a parameter or a directive. A line beginning with `#' is considered a comment, and will be ignored by Kopano. Parameter names are case sensitive. Lines beginning with `!' are directives.

Directives are written in the form:

!directive [argument(s)]

The following directives exist:

include
    Include and process argument

    Example: !include common.cfg

EXPLANATION OF EACH PARAMETER

server_bind
    IP address to bind to. Leave empty to bind to all addresses.

    Default: (empty)

ical_enable
    Enable iCal/CalDAV service with value yes. All other values disable the service.

    Default: yes

ical_port
    The iCal/CalDAV service will listen on this port for incoming connections.

    Default: 8080

icals_enable
    Enable SSL iCal/CalDAV service with value yes. All other values disable the service.

    Default: yes

icals_port
    The SSL iCal/CalDAV service will listen on this port for incoming connections.

    Default: 8443

server_socket
    The http address of the storage server.

    Default: http://localhost:236/

    It is not advised to specify the UNIX socket here, but the http address instead. In default configuration the gateway will then be trusted by the storage server (as set in its local_admin_users configuration setting). Unless is run as an untrusted user, by specifying the run_as_user, the gateway always authenticates users even if they provide no or wrong credentials!

run_as_user
    After correctly starting, the iCal/CalDAV gateway process will become this user, dropping root privileges. Note that the log file needs to be writeable by this user, and the directory too to create new logfiles after logrotation. This can also be achieved by setting the correct group and permissions.

    Default value is empty, not changing the user after starting.

run_as_group
    After correctly starting, the iCal/CalDAV gateway process will become this group, dropping root privileges.

    Default value is empty, not changing the group after starting.

pid_file
    Write the process ID number to this file. This is used by the init.d script to correctly stop/restart the service.

    Default: /var/run/kopano/ical.pid

running_path
    Change directory to this path when running in daemonize mode. When using the -F switch to run in the foreground the directory will not be changed.

    Default: /

process_model
    You can change the process model between fork and thread. The forked model uses somewhat more resources, but if a crash is triggered, this will only affect one user. In the threaded model, a crash means all users are affected, and will not be able to use the service.

    Default: fork

ssl_private_key_file
    The iCal/CalDAV gateway will use this file as private key for SSL TLS. This file can be created with: openssl genrsa -out /etc/kopano/ical/privkey.pem 2048.

    Default: /etc/kopano/ical/privkey.pem

ssl_certificate_file
    The iCal/CalDAV gateway will use this file as certificate for SSL TLS. A self-signed certificate can be created with: openssl req -new -x509 -key /etc/kopano/ical/privkey.pem -out /etc/kopano/ical/cert.pem -days 1095.

    Default: /etc/kopano/ical/cert.pem

ssl_verify_client
    Enable client certificate verification with value yes. All other values disable the verification.

    Default: no

ssl_verify_file
    The file to verify the clients certificates with.

    Default: value not set.

ssl_verify_path
    The path with the files to verify the clients certificates with.

    Default: value not set.

ssl_protocols
    Disabled or enabled protocol names. Supported protocol names are SSLv3 and TLSv1. If Kopano was linked against OpenSSL 1.0.1 or later there is additional support for the new protocols TLSv1.1 and TLSv1.2. To exclude both SSLv3 and TLSv1, set server_ssl_protocols to !SSLv3 !TLSv1.

    Default: SSLv2 being disabled

ssl_ciphers
    SSL ciphers to use, set to ALL for backward compatibility.

    Default: ALL:!LOW:!SSLv2:!EXP:!aNULL

ssl_prefer_server_ciphers
    Prefer the server's order of SSL ciphers over client's.

    Default: no

log_method
    The method which should be used for logging. Valid values are:

    syslog
        Use the Linux system log. All messages will be written to the mail facility. See also syslog.conf(5).

    file
        Log to a file. The filename will be specified in log_file.

    Default: file

log_file
    When logging to a file, specify the filename in this parameter. Use - (minus sign) for stderr output.

    Default: /var/log/kopano/ical.log

log_level
    The level of output for logging in the range from 0 to 5. 0=no logging, 5=full logging.

    Default: 2

log_timestamp
    Specify whether to prefix each log line with a timestamp in 'file' logging mode.

    Default: 1

log_buffer_size
    Buffer logging in what sized blocks. The special value 0 selects line buffering.

    Default: 0

enable_ical_get
    Enable the ical GET method to download an entire calendar. When set to 'yes', the GET method is enabled and allowed. If not, then calendars can only be retrieved with the CalDAV PROPFIND method, which is much more efficient. This option allows you to force the use of CalDAV which lowers load on your server.

RELOADING

The following options are reloadable by sending the kopano-ical process a HUP signal:

log_level

FILES

/etc/kopano/ical.cfg
    The Kopano iCal/CalDAV gateway configuration file.

AUTHOR

Written by Kopano.

SEE ALSO

kopano-ical(8)