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CentOS 7 VS CentOS 6 버전 비교

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Centos7与Centos6区别 

CentOS 7 vs CentOS 6 的不同


(1)桌面系统

[CentOS6] GNOME 2.x

[CentOS7] GNOME 3.x(GNOME Shell)


(2)文件系统

[CentOS6] ext4

[CentOS7] xfs


(3)内核版本

[CentOS6] 2.6.x-x

[CentOS7] 3.10.x-x


(4)启动加载器

[CentOS6] GRUB Legacy (+efibootmgr)

[CentOS7] GRUB2


(5)防火墙

[CentOS6] iptables

[CentOS7] firewalld


(6)默认数据库

[CentOS6] MySQL

[CentOS7] MariaDB


(7)文件结构

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

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


(8)主机名

[CentOS6] /etc/sysconfig/network

[CentOS7] /etc/hostname


(9)时间同步

[CentOS6]

$ ntp

$ ntpq -p


[CentOS7]

$ chrony

$ chronyc sources


(10)修改时间

[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)修改地区

[CentOS6]

$ vim /etc/sysconfig/i18n

   LANG="ja_JP.utf8"

$ /etc/sysconfig/i18n

$ locale


[CentOS7]

$ localectl set-locale LANG=ja_JP.utf8

$ localectl status


(12)服务相关


1)启动停止

[CentOS6]

$ service service_name start

$ service service_name stop

$ service sshd restart/status/reload


[CentOS7]

$ systemctl start service_name

$ systemctl stop service_name

$ systemctl restart/status/reload sshd


自启动

[CentOS6]

$ chkconfig service_name on/off


[CentOS7]

$ systemctl enable service_name

$ systemctl disable service_name


服务一览

[CentOS6]

$ chkconfig --list


[CentOS7]

$ systemctl list-unit-files

$ systemctl --type service


强制停止

[CentOS6]

$ kill -9 <PID>


[CentOS7]

$ systemctl kill --signal=9 sshd


(13)网络


1)网络信息

[CentOS6]

$ netstat

$ netstat -I

$ netstat -n


[CentOS7]

$ ip n

$ ip -s l

$ ss


2)IP地址MAC地址

[CentOS6]

$ ifconfig -a


[CentOS7]

$ ip address show


3)路由

[CentOS6]

$ route -n

$ route -A inet6 -n


[CentOS7]

$ ip route show

$ ip -6 route show


(14)重启关闭


1)关闭

[CentOS6]

$ shutdown -h now 


[CentOS7]

$ poweroff

$ systemctl poweroff


2)重启

[CentOS6]

$ reboot

$ shutdown -r now


[CentOS7]

$ reboot

$ systemctl reboot


3)单用户模式

[CentOS6]

$ init S


[CentOS7]

$ systemctl rescue


4)启动模式

[CentOS6]

[GUICUI]

$ vim /etc/inittab

  id:3:initdefault:

[CUIGUI]

$ startx


[CentOS7]

[GUICUI]

$ systemctl isolate multi-user.target

[CUIGUI]

$systemctl isolate graphical.target

默认

$ systemctl set-default graphical.target

$ systemctl set-default multi-user.target

当前

$ systemctl get-default

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