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  • centos6与centos7区别

    CentOS 6 vs CentOS 7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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  • 原文地址:https://www.cnblogs.com/shawhe/p/9555423.html
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