What is the difference between centos7 and centos6.5

The difference between centos7 and centos6.5: 1. The default database of centos7 is MariaDB, while the default database of centos6.5 is MySQL; 2. The kernel version of centos7 is "3.10.x-x", while the default database of centos6.5 The kernel version is "2.6.x-x".

The operating environment of this article: centos 6.4 system, Dell G3 computer.

What is the difference between centos7 and centos6.5

(1)Desktop system

[CentOS6] GNOME 2.x
[CentOS7] GNOME 3.x（GNOME Shell）

(2)File system

[CentOS6] ext4
[CentOS7] xfs

(3)Kernel version

[CentOS6] 2.6.x-x
[CentOS7] 3.10.x-x

(4)Start loader

[CentOS6] GRUB Legacy (+efibootmgr)
[CentOS7] GRUB2

(5)Firewall

[CentOS6] iptables
[CentOS7] firewalld

(6)Default database

[CentOS6] MySQL
[CentOS7] MariaDB

(7)File structure

[CentOS6] /bin, /sbin, /lib, and /lib64在/下 
[CentOS7] /bin, /sbin, /lib, and /lib64移到/usr下

(8)Host name

[CentOS6] /etc/sysconfig/network/
[CentOS7] /etc/hostname

(9)Time synchronization

[CentOS6]$ ntp $ ntpq -p /
[CentOS7] $ chrony $ chronyc sources

(10)Modify time

[CentOS6]
$ vim /etc/sysconfig/clock
ZONE="Asia/Tokyo"
UTC=fales
$ sudo ln -s /usr/share/zoneinfo/Asia/Tokyo /etc/localtime
[CentOS7]
$ timedatectl set-timezone Asia/Tokyo
$ timedatectl status

(11)Modify region

[CentOS6]
$ vim /etc/sysconfig/i18n
LANG="ja_JP.utf8"
$ /etc/sysconfig/i18n
$ locale
[CentOS7]
$ localectl set-locale.utf8
$ localectl status

(12) Service related

Start and stop\Auto-start\Service list\Forced stop

Recommended tutorial: "centos tutorial"

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