Marco Education class 20-2 first week study notes 2

Server OS

Windows
Linux
Unix:system (Bell Lab, Aix Solaris Hp_ux), BSD (NetBSD OpenBSD FreeBSD)

Linux origins
1984 Richard Stallman launched the GNU program, developed UNIX-based free software and tools to represent GCC VI
Create GPL Public License
1991 Linux Torvalds releases Linux and joins GNU
Linux Official website: www.kernel.org
The Linux system is a combination of the kernel and GNU software

Common versions of Linux
Slackware:suse Enterprise Server, openSUSE Desktop
Debian:ununtu,mint
Redhat:redhat Enterprise Linux 18 released a new version, Fedora 6 month version, also Redhat test, CentOS Community version, won the Kylin
ArchLinux
Gentoo
Lfs
Android

Open source
Definition: Software and source code for everyone, free distribution of software and source code, the ability to modify and create derivative works, the author's code is perfect.
Category: Business, sharing, freedom
Open Source Agreement

GPLv2 GPLv3 LGPL
Apache:apache
Bsd:bsd
Mozilla
MIT

The philosophy of Linux
All files together
Small and beautiful program, single function
Linking programs to accomplish complex tasks together,
Avoid confusing user interfaces
Configuration data is stored in text

Get the release version
Centos
Http://wiki.centos.org/Download
Http://mirrors.aliyun.com
Http://mirrors.sohu.com
Http://mirrors.163.com

Marco Education class 20-2 first week study notes 2