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

KOPANO-ICAL.CFG(5) Kopano Core user reference 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)
November 2016 Kopano 8