CentOS 7與CentOS 6的區別【艾娜】

(1)桌面系統

[CentOS 6] GNOME 2.x

[CentOS 7] GNOME 3.x(GNOME Shell)

(2)文件系統

[CentOS 6] ext4

[CentOS 7] xfs

(3)內核版本

[CentOS 6] 2.6.x-x

[CentOS 7] 3.10.x-x

(4)Python版本

[CentOS 6] 2.6

[CentOS 7] 2.7

(5)防火墻

[CentOS 6] iptables

[CentOS 7] firewalld

(6)默認數據庫

[CentOS 6] MySQL

[CentOS 7] MariaDB

(7)文件結構

[CentOS 6] /bin, /sbin, /lib, and /lib64在/下

[CentOS 7] /bin, /sbin, /lib, and /lib64在/usr下

(8)主機名

[CentOS 6] /etc/sysconfig/network

[CentOS 7] /etc/hostname

(9)時間同步

[CentOS 6]

$ ntp

$ ntpq -p

[CentOS 7]

$ chrony

$ chronyc sources

(10)修改時間

[CentOS 6]

$ vim /etc/sysconfig/clock

ZONE="Asia/Tokyo"

UTC=fales

$ sudo ln -s /usr/share/zoneinfo/Asia/Tokyo/etc/localtime

[CentOS 7]

$ timedatectl set-timezone Asia/Tokyo

$ timedatectl status

(11)修改地區

[CentOS 6]

$ vim /etc/sysconfig/i18n

LANG="zh_CN.utf8"

$ /etc/sysconfig/i18n

$ locale

[CentOS 7]

$ localectl set-locale.utf8

$ localectl status

實際修改的是文件 /etc/locale.conf

修改 Secure CRT 的Terminal—>Appearance—>“Character encoding”為 UTF-8，控制臺方能正常顯示中文。

(12)服務相關

*啟動停止

[CentOS 6]

$ service service_name start

$ service service_name stop

$ service sshd restart/status/reload

[CentOS 7]

$ systemctl start service_name

$ systemctl stop service_name

$ systemctl restart/status/reload sshd

*自啟動

[CentOS 6]

$ chkconfig service_name on/off

[CentOS 7]

$ systemctl enable service_name

$ systemctl disable service_name

*服務一覽

[CentOS 6]

$ chkconfig --list

[CentOS 7]

$ systemctl list-unit-files

$ systemctl --type service

*強制停止

[CentOS 6]

$ kill -9

[CentOS 7]

$ systemctl kill --signal=9 sshd

(13)網絡

*網絡信息

[CentOS 6]

$ netstat

$ netstat -I

$ netstat -n

[CentOS 7]

$ ip n

$ ip -s l

$ ss

* IP地址MAC地址

[CentOS 6]

$ ifconfig -a

[CentOS 7]

$ ip address show

*路由

[CentOS 6]

$ route -n

$ route -A inet6 -n

[CentOS 7]

$ ip route show

$ ip -6 route show

(14)重啟關閉

*關閉

[CentOS 6]

$ shutdown -h now

[CentOS 7]

$ poweroff

$ systemctl poweroff

*重啟

[CentOS 6]

$ reboot

$ shutdown -r now

[CentOS 7]

$ reboot

$ systemctl reboot

*單用戶模式

[CentOS 6]

$ init S

[CentOS 7]

$ systemctl rescue

*啟動模式

[CentOS 6]

[GUICUI]

$ vim /etc/inittab

id:3:initdefault:

[CUIGUI]

$ startx

[CentOS 7]

[GUICUI]

$ systemctl isolate multi-user.target

[CUIGUI]

$systemctl isolate graphical.target

默認

$ systemctl set-default graphical.target

$ systemctl set-default multi-user.target

當前

$ systemctl get-default

(15) 網卡命名

[CentOS 6]

eth0

[CentOS 7]

成為了可預見性的命名規則

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