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GConf
GConf was a system used by the GNOME desktop environment for storing configuration settings for the desktop and applications. It is similar to the Windows Registry. It was deprecated as part of the GNOME 3 transition. Migration to its replacement, GSettings and dconf, is ongoing. Changes to this system are controlled by GConfd, a daemon. GConfd watches out for changes to the database, and when they are changed, it applies the new settings to applications using it. This technology is known as "auto-apply", compared to "explicit-apply", which requires users to press an OK or Apply button to make changes come into effect. The term "instant-apply" is sometimes used, compared to plain "apply". The GConf database by default uses a system of directories and XML files, stored in a directory called ~/.gconf. GConf can also use other backends, such as a database server, but XML file storage is the most common configuration. The application gconf-editor is provided to allow users to cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gconf-editor
Gconf-editor is a discontinued utility for the GNOME desktop environment used to maintain the old and now discontinued GNOME registry gconf. Gconf-editor gives users the ability to access settings stored in the XML-based GConf configuration database or registry. It is used primarily by developers to debug applications, or by power users to edit hidden and complex settings. It abstracts the values from the GConf database and presents them in an interface similar to Microsoft Windows' registry editor. Other gconf tools have also appeared, such as Gconfpref by MandrakeSoft Mandriva S.A. was a public software company specializing in Linux and open-source software. Its corporate headquarters was in Paris, and it had development centers in Metz, France and Curitiba, Brazil. Mandriva, S.A. was the developer and maint .... There are also patches for popular applications, which add the ability to change the hidden options from within the application itself, avoiding the need for gc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNOME 3
GNOME 3 is the third major release of the GNOME desktop environment. A major departure from technologies implemented by its predecessors, GNOME 3 introduced a dramatically different user interface. It was the first GNOME release to utilize a unified graphical shell known as GNOME Shell. It also introduced support for the Wayland display protocol and added integration with other key technologies such as Flatpak during its development lifecycle. While loose planning began as early as 2004, it was not officially announced until 2008, and received an initial release in 2011. It was superseded by GNOME 40 in 2021. Features Much of GNOME 3's user interface changes were based-on attempts at simplification and rethinking of traditional desktop computing workflows. Eschewing the beige colors present in GNOME 2 in favor of a modern black and gray, a new look and feel was implemented, which became known as Adwaita. Possibly the single-most significant feature change that GNOME 3 introd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dconf
dconf is a low-level configuration system and settings management tool. Its main purpose is to provide a Front and back ends, back end to #GSettings, GSettings on platforms that don't already have configuration storage systems. It depends on GLib. It is part of GNOME 3 and is a replacement for GConf. Overview dconf is a simple key-based configuration system. Keys exist in an unstructured database (but it is intended that keys that logically belong together are grouped together). Change notification is supported. Stacking of multiple configuration sources is supported. Mandatory keys are supported. The stacking can be done at "mount points". For example, the global system configuration can be mounted under inside of each user's configuration space. A single configuration source may appear at multiple points in the hierarchy. For example, in addition to stacking over the normal keys at , the system default keys may also appear at for inspection and modification by a system p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightweight Directory Access Protocol
The Lightweight Directory Access Protocol (LDAP ) is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network. Directory services play an important role in developing intranet and Internet applications by allowing the sharing of information about users, systems, networks, services, and applications throughout the network. As examples, directory services may provide any organized set of records, often with a hierarchical structure, such as a corporate email directory. Similarly, a telephone directory is a list of subscribers with an address and a phone number. LDAP is specified in a series of Internet Engineering Task Force (IETF) Standard Track publications called Request for Comments (RFCs), using the description language ASN.1. The latest specification is Version 3, published aRFC 4511ref name="gracion Gracion.com. Retrieved on 2013-07-17. (a road map to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Network
A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other. These interconnections are made up of telecommunication network technologies, based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies. The nodes of a computer network can include personal computers, servers, networking hardware, or other specialised or general-purpose hosts. They are identified by network addresses, and may have hostnames. Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment. Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol. Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Path (computing)
A path is a string of characters used to uniquely identify a location in a directory structure. It is composed by following the directory tree hierarchy in which components, separated by a delimiting character, represent each directory. The delimiting character is most commonly the slash ("/"), the backslash character ("\"), or colon (":"), though some operating systems may use a different delimiter. Paths are used extensively in computer science to represent the directory/file relationships common in modern operating systems and are essential in the construction of Uniform Resource Locators (URLs). Resources can be represented by either ''absolute'' or ''relative'' paths. History Multics first introduced a hierarchical file system with directories (separated by ">") in the mid-1960s. Around 1970, Unix introduced the slash character ("/") as its directory separator. In 1981, the first version of Microsoft DOS was released. MS-DOS 1.0 did not support file directories. Also, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GObject
The GLib Object System, or GObject, is a free software library providing a portable object system and transparent cross-language interoperability. GObject is designed for use both directly in C programs to provide object-oriented C-based APIs and through bindings to other languages to provide transparent cross-language interoperability, e.g. PyGObject. GObject Introspection GObject introspection(abbreviated GIR) is a middleware layer between C libraries (using GObject) and language bindings, cf. List of language bindings for GTK. History Depending only on GLib and libc, GObject is a cornerstone of GNOME and is used throughout GTK, Pango, ATK, and most higher-level GNOME libraries like GStreamer and applications. Prior to GTK+ 2.0, code similar to GObject was part of the GTK codebase. (The name “GObject” was not yet in use — the common baseclass was called GtkObject.) At the release of GTK+ 2.0, the object system was extracted into a separate library due to its gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNU Privacy Guard
GNU Privacy Guard (GnuPG or GPG) is a free-software replacement for Symantec's PGP cryptographic software suite. The software is compliant with RFC 4880, the IETF standards-track specification of OpenPGP. Modern versions of PGP are interoperable with GnuPG and other OpenPGP-compliant systems. GnuPG is part of the GNU Project and received major funding from the German government in 1999. Overview GnuPG is a hybrid-encryption software program because it uses a combination of conventional symmetric-key cryptography for speed, and public-key cryptography for ease of secure key exchange, typically by using the recipient's public key to encrypt a session key which is used only once. This mode of operation is part of the OpenPGP standard and has been part of PGP from its first version. The GnuPG 1.x series uses an integrated cryptographic library, while the GnuPG 2.x series replaces this with Libgcrypt. GnuPG encrypts messages using asymmetric key pairs individually g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Schema
The database schema is the structure of a database described in a formal language supported by the database management system (DBMS). The term "schema" refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases). The formal definition of a database schema is a set of formulas (sentences) called integrity constraints imposed on a database. These integrity constraints ensure compatibility between parts of the schema. All constraints are expressible in the same language. A database can be considered a structure in realization of the database language. The states of a created conceptual schema are transformed into an explicit mapping, the database schema. This describes how real-world entities are modeled in the database. "A database schema specifies, based on the database administrator's knowledge of possible applications, the facts that can enter the database, or those of interest to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callback (computer Science)
In computer programming, a callback or callback function is any reference to executable code that is passed as an argument to another piece of code; that code is expected to ''call back'' (execute) the callback function as part of its job. This execution may be immediate as in a synchronous callback, or it might happen at a later point in time as in an asynchronous callback. Programming languages support callbacks in different ways, often implementing them with subroutines, lambda expressions, blocks, or function pointers. Design There are two types of callbacks, differing in how they control data flow at runtime: ''blocking callbacks'' (also known as ''synchronous callbacks'' or just ''callbacks'') and ''deferred callbacks'' (also known as ''asynchronous callbacks''). While blocking callbacks are invoked before a function returns (as in the C example below), deferred callbacks may be invoked after a function returns. Deferred callbacks are often used in the context of I/O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
