| 命令 | centos6 | centos7 |
| ifconfig | 有 | 有 yum install -y net-tools |
| 服务管理 | chkconfig /etc/init.d/服务 |
systemctl | |
systemctl start service_name
自启动
[CentOS6]
$ chkconfig service_name on/off
[CentOS7]
$ systemctl
enable service_name
$ systemctl
@H_502_98@ disable service_name
而对于启动脚本的存放位置，也不再是/etc/init.d/（这个目录也是存在的），而是/usr/lib/systemd/system/.
| kernel | 2.6 | 3.10 |
| 网卡 | eth0 | 成为了可预见性的命名规则 |
| 文件系统 | ext4 | xfs |
强制停止
[CentOS6]
$ kill -9 <PID>
[CentOS7]
$ systemctl kill --signal=9 sshd
| 主机名 | cat /etc/sysconfig/network | cat /etc/hostname |
| 防火墙 | iptables | 被firewalld取代 |
| 内核参数配置文件 | /etc/sysctl.conf | /usr/lib/sysctl.d/00-system.conf 和 /etc/sysctl.d/<name>.conf |
文件结构
[CentOS6] /bin,/sbin,/lib,and /lib64在
/下
[CentOS7] /bin,and /lib64移到/usr下
IP地址MAC地址
[CentOS6]
$ ifconfig -a
[CentOS7]
$ ip address show
[CentOS6]$ shutdown -h now
[CentOS7]
$ poweroff
$ systemctl poweroff
防火墙
systemctl status firewalld
systemctl stop firewalld
systemctl disable firewalld
继续使用老版防火墙：
systemctl stop firewalld
systemctl disable firewalld
yum installed -y iptables-services
systemctl enable iptables
systemctl start iptables
参考：
