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CentOS (abbreviated from Community Enterprise Operating System) is a Linux distribution that attempts to provide a free, enterprise-class, community-supported computing platform which aims to be functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL).〔(【引用サイトリンク】 title=Red hat + CentOS )〕 In January 2014, CentOS announced the official joining with Red Hat while staying independent from RHEL, under a new CentOS governing board. The first CentOS release in May 2004, numbered as CentOS version 2, was forked from RHEL version 2.1AS.〔 Since the release of version 7.0, CentOS officially supports only the x86-64 architecture, while versions older than 7.0-1406 also support IA-32 with Physical Address Extension (PAE), with additional architectures supported in CentOS versions older than 4.7. , AltArch releases of CentOS 7 are available for the IA-32 architecture and for the AArch64 variant of the ARM architecture. == History == Prior to becoming known under its current name, CentOS originated as a build artifact of cAos Linux. At the time, some of the cAos contributors were merely interested in this build artifact for their own use, citing difficulties in collaborating with other noteworthy Red Hat Enterprise Linux (RHEL) clones of the time. In June 2006, David Parsley, the primary developer of Tao Linux (another RHEL clone), announced the retirement of Tao Linux and its rolling into CentOS development. Tao's users migrated to the CentOS release via yum update. In July 2009, it was reported in an open letter on the CentOS project web site that CentOS's founder, Lance Davis, had disappeared in 2008. Davis had ceased contribution to the project, but continued to hold the registration for the CentOS domain and PayPal account. In August 2009, the CentOS team reportedly made contact with Davis and obtained the centos.info and centos.org domains.〔(Perlow, Jason. (2 August 2009). CentOS: Getting Their S#!t Together is a Top Priority. ''ZDNet'' )〕 In July 2010, CentOS overtook Debian to become the most popular Linux distribution for web servers, with almost 30% of all Linux web servers using it.〔(【引用サイトリンク】title=The most popular Linux for Web servers is ... )〕 (Debian retook the lead in January 2012.〔(【引用サイトリンク】title=Debian is now the most popular Linux distribution on web servers )〕) In January 2014, Red Hat announced that it would sponsor the CentOS project, "helping to establish a platform well-suited to the needs of open source developers that integrate technologies in and around the operating system". As the result of these changes, ownership of CentOS trademarks was transferred to Red Hat,〔(【引用サイトリンク】url=http://community.redhat.com/centos-faq/#_centos_trademark )〕 which now employs most of the CentOS head developers; however, they work as part of the Red Hat's Open Source and Standards team, which operates separately from the Red Hat Enterprise Linux team.〔 A new CentOS governing board was also established.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「CentOS」の詳細全文を読む スポンサード リンク
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