DAY01 Linux Introduction

Linux is free open source, it is a Unix-based transformation, a multi-user multitasking operating system, anyone can modify their code and pages, the main purpose is to not accept the commercial restrictions, and we deploy the server on the Linux system will be more efficient and stable, Security (Note: Unix operating system (Younis), is a powerful multi-user, multi-tasking operating system, supporting a variety of processor architectures).

Linux was originally developed by Finnish University of Helsinki students Linus Torvalds in 1991 years in a personal hobby designed the kernel of the Linux system, in 1994 formally adopted the GPL protocol.

GPL : The general Public License Agreement ensures that the software is free to all users, who can modify the software code for most free software foundations.

GUN : is a collection system of software, the gun in a lot of software in the Linux, only to produce the current Linux.

Branch of the Linux version:

Fedora Core : One of Linux's many distributions, is an open and innovative operating system platform, formerly known as Red Hat Linux, which allows anyone to freely modify and redistribute, managed and controlled by the Fedora Foundation, and is typically used only for desktop applications due to poor fedora stability.

Debian : Born in 1993, he was co-maintained by many developers, is currently the most compliant Linux GPL system, due to the text-based, cumbersome operation, the use of the process is particularly annoying, relatively speaking, as a server platform, Debian is known for its stability.

The following three versions are included:

Unstable is the latest beta version, including the latest software packages, a lot of bugs, suitable for desktop applications.

Testing after unstable test, relatively stable.

Stable is suitable for servers, although the packages are outdated, but relatively stable.

Ubuntu : is a desktop application-based operating system whose name comes from the southern African Zulu word ubuntu (translated into diu), meaning human nature, is the embodiment of a certain African value, he was developed on the basis of the Debian and UNIX desktop environment, and released a new version every 6 months. ubnutu12.04 is a long-supported version. Official website:http://www.ubuntu.org.cn

Red Hat Linux : This is the most famous and most used version of the current, has its own company, can provide a set of user services, installation process is very clear, is the most popular needs of a version, the current number of users, but the charge version.

Official website: https://www.redhat.com

SUSE : Always dedicated to creating the best Linux version to connect to the database, SUSE and Oracle IBM and other companies, are their products stable, suse operating system can and implementation and Windows disk Direct access, two direct fast switching, installation interface, Hardware detection is very friendly. Official website:https://www.suse.com/zh-cn/

Centos : One of the Linux distributions, compiled from the Red Hat community according to Redhat source code, CentOS has been acquired by Redhat to provide an enterprise Linux distribution with free access to the source code. New versions of CentOS will be released in about two years. Official website:https://www.centos.org/

There are two ways in which Rhel releases the new version:

1, the binary distribution method.

2, the source code distribution method.

DAY01 Linux Introduction