CentOS7 与 CentOS6的区别

2018-01-11 13:00:27来源:oschina作者:java攻城师人点击

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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

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

[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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