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A Linux User Group (LUG) is a meeting of people who like Linux and use it. Each country will usually have a national LUG which may administer the groups, offer free services etc. and it is also possible for groups to get sponsorships from various commercial organisations, SuSE is one example.
A Linux User Group or Linux Users' Group (LUG) or GNU/Linux User Group (GLUG) is a private, generally non-profit or not-for-profit organization that provides support and/or education for Linux users, particularly for inexperienced users. The term commonly refers to local groups that meet in person but is also used to refer to online support ...
Adamcon (Coleco Adam user group) Toronto PET Users Group (TPUG) SHARE; Macintosh User Groups in the UK; DUsers, the first Macintosh users group, based at Drexel University; IIUG International Informix Users Group; COMMON for Power Systems (IBM i, AS/400, iSeries, System i, AIX and Linux) users in North America.
Users' groups may be organized around a particular brand of hardware (e.g., Mac), software and operating systems (e.g. Linux), or more rarely may be dedicated to retro systems (e.g., Apple II). An example of an early user group is the Apple User Group Connection.
Besides the Linux distributions designed for general-purpose use on desktops and servers, distributions may be specialized for different purposes including computer architecture support, embedded systems, stability, security, localization to a specific region or language, targeting of specific user groups, support for real-time applications, or commitment to a given desktop environment.
Some systems diverge from the traditional POSIX model of users and groups by creating a new group – a "user private group" – for each user. Assuming that each user is the only member of its user private group, this scheme allows an umask of 002 to be used without allowing other users to write to newly created files in normal directories ...
The wheel group is a special user group used on some Unix systems, mostly BSD systems, [citation needed] to control access to the su [4] [5] or sudo command, which allows a user to masquerade as another user (usually the super user). [1] [2] [6] Debian and its derivatives create a group called sudo with purpose similar to that of a wheel group. [7]
iptables is the current user interface for interacting with Linux kernel netfilter functionality. It replaced ipchains . Other Unix like operating systems may provide their own native functionality and other open source firewall products exist.