RHEL7.x/RHEL6.x常见差异对比

(2)文件系统
[CentOS6] ext4
[CentOS7] xfs

(3)内核版本
[CentOS6] 2.6.x-x
[CentOS7] 3.10.x-x

(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

(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

(14)重启关闭
关闭
[CentOS6]
shutdown -h now
[CentOS7]
poweroff
systemctl poweroff

重启[CentOS6]
reboot
shutdown -r now
[CentOS7]
reboot
systemctl reboot