CentOS-7-Minimal-Build

# 默认是关闭网卡的, 需开启
vi /etc/sysconfig/network-scripts/ifcfg-enp0s3

ONBOOT=yes

service network restart

# centos7 无`ifconfig`、`netstat`、`route`、`arp`
使用 ip指令，ss指令和NetworkManager的两个工具 nmtui，nmcli 取代

# 使用iptables
centos7 默认防火墙为firewalld,iptables 更加亲切
禁用firewalld 相关命令：　
```
systemctl stop firewalld.service **停止firewall**
systemctl disable firewalld.service **禁止firewall开机启动**
```
##安装iptables-services
```
yum install iptables-services
```

centos7 基础工具

sudo yum install net-tools   # ipconfig