)1)桌面系统
[CentOS6] GNOME 2.x
[ centos7] gnome3. 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]grublegacy(EFIbootmgr ) ) ) ) ) ) ) ) ) )
[CentOS7] GRUB2
)5)防火墙
[CentOS6] iptables
[ centos7]防火墙d
(6)默认数据库
[CentOS6] MySQL
[CentOS7] MariaDB
(7)文件结构
[CentOS6] /bin、/sbin、/lib、and /lib64位于/下
[CentOS7] /bin、/sbin、/lib、and /lib64移动到/usr下
)8)主机名
[ centos6]/etc/sys config/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 '
$ sudo ln-s/usr/share/zoneinfo/Asia/Tokyo/etc/local time
[CentOS7]
$ timedatectlset-time zone Asia/Tokyo
$ timedatectl status
(十一)区域修改
[CentOS6]
$ vim /etc/sysconfig/i18n
LANG='ja_JP.utf8 '
$ /etc/sysconfig/i18n
$ locale
[CentOS7]
$ localectlset-locale lang=ja _ jp.utf8
$ localectl status
(十二)服务相关
1 )停止启动
[CentOS6]
$服务服务_ name start
$服务服务_ name stop
$ servicesshdrestart/status/reload
[CentOS7]
$ systemctl start service_name
$ systemctl stop service_name
$ systemctlrestart/status/reload sshd
[CentOS6]
$ chkconfig service_name on/off
[CentOS7]
$ systemctl enable service_name
$ systemctl disable service_name
[CentOS6]
$ chkconfig --list
[CentOS7]
$ systemctl list -单元文件
$ systemctl--类型服务
[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地址显示
3 )路由
[CentOS6]
$ route -n
$ route -A inet6 -n
[CentOS7]
$ ip route show
$ IP-6路由显示
(14 )重启关机
1 )关闭
[CentOS6]
$ shutdown -h now
[CentOS7]
$电源关闭
$ systemctl电源关闭
2 )重启
[CentOS6]
$ reboot
$ shutdown -r now
[CentOS7]
$ reboot
$系统重新引导
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]
$ systemctlisolatemulti-user.target
[CUIGUI]
$ systemctlisolategraphical.target
$ systemctlset-default graphical.target
$ systemctlset-default multi-user.target
$ systemctl get-default