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centos is a version of the linux operating system. Centos is mainly divided into two versions: 1. CentOS Linux version, which is released every two years; 2. CentOS Stream version, which is a rolling update Version means there is no fixed version number.
The operating environment of this article: CentOS 7 system, Dell G3 computer.
Is centos a linux system?
centos is a linux system.
CentOS is a free, open source, and redistributable open source operating system. CentOS (Community Enterprise Operating System, Chinese meaning community enterprise operating system) is one of the Linux distributions.
CentOS Linux distribution is a stable, predictable, manageable and reproducible platform derived from Red Hat Enterprise Linux (RHEL) in accordance with open source code (mostly GPL open source license) Compiled from the source code specified for release.
Since March 2004, CentOS Linux has been a community-driven open source project designed to be functionally compatible with RHEL.
Introduction
CentOS is the abbreviation of Community Enterprise Operating System, also called community enterprise operating system. It is a recompiled version (a re-released version) of Red Hat Enterprise Linux (hereinafter referred to as RHEL), the leader in enterprise Linux distributions, and has fixed many known bugs on the basis of RHEL. Compared with other Linux distributions version, its stability is trustworthy.
CentOS is free. You can use it to build an enterprise-level Linux system environment just like RHEL, but you do not need to pay any fees to RedHat. CentOS technical support is mainly provided through the community's official mailing list, forums and chat rooms.
Each version of CentOS is supported (via security updates) for ten years, with new versions of CentOS released approximately every two years. Each version of CentOS is updated regularly (about every six months) to support new hardware. In this way, a secure, low-maintenance, stable, highly predictable, and highly repeatable Linux environment is established.
Features
1. CentOS can be understood as the community version of the Red Hat AS series. It is completely improved and released on Red Hat AS. Various operations and uses are no different from RHEL.
2. CentOS is completely free, and there is no problem that RED HAT AS requires a serial number.
3. CentOS's unique yum command supports online upgrades, which can update the system instantly. Unlike RHEL, which requires spending money to purchase support services.
4. CentOS has fixed many RHEL bugs.
5. CentOS version notes: CentOS3.1 is equivalent to RED HAT AS3 Update1 CentOS3.4 is equivalent to RED HAT AS3 Update4 CentOS4.0 is equivalent to RED HAT AS4.
Version classification
CentOS is mainly divided into two main versions, CentOS Linux and CentOS Stream version.
1. The Linux version is released every two years, and each version of the system will provide 10 years of security maintenance support.
2. The Stream version is a rolling update version, which means there is no fixed version number and the specific content is dynamically updated.
Recommended tutorial: "centos tutorial"
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