Dell Wyse Enhanced Ubuntu Linux T50 Manual de usuario descargar pdf (Pagina 179)

Chapter 15. Hiveconf

15.1. Overview

Hiveconf is the name of the conﬁguration system used in ThinLinc. It is however not a ThinLinc-speciﬁc

conﬁguration system, but instead a generic conﬁguration framework for storing key/value pairs in a

human readable way, although still in a format that’s easy to read and modify from a computer program.

Hiveconf stores data using a "backend", meaning conﬁguration data can be stored in different ways. The

default backend which is also used in ThinLinc is using a text ﬁle format similar to Windows .INI-ﬁles,

or the format used in smb.conf from Samba.

In this section, we will describe Hiveconf from a general point of view and also describe

ThinLinc-speciﬁc details.

15.1.1. Basic Syntax

Basically, a Hiveconf ﬁle consists of key/value pairs with a equalsign(=) between them, as in the

following example:

vsm_server_port = 9000

vnc_port_base = 5900

The values after the equal sign can be of the following types:

• String

• Boolean

• Integer

• Float

• Binary data as hexadecimal ASCII

Data can also be lists of the above types.

15.1.2. Tree Structure

Parameters in Hiveconf all reside in folders. Folders are just like a directory or folder in a normal ﬁle

system. By adding folder directives to Hiveconf ﬁles, the parameters will be split up in a tree structure,

meaning each parameter will be addressed using a path. This way, two folders can have two parameters

with the same name without collision.

The beneﬁts of this is that a software suite (for instance ThinLinc) can have one common conﬁguration

namespace, without having to name all conﬁguration parameters uniquely, since every component in the

suite can have its own namespace. In ThinLinc, the VSM server has its parameters in the vsmserver/

folder, the VSM agent has its parameters in the vsmagent/ folder and so on.

Looking from a system global point of view, every software package has its own folder, meaning all

conﬁguration parameters of the system can be accessed using a common tool.

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Dell Wyse Enhanced Ubuntu Linux T50 Manual de usuario Pagina 179