CentOS 7 共通部分

更新套件

sudo yum update -y

安裝 yum 工具集

sudo yum install yum-utils -y

安裝 vim

sudo yum install vim -y

安裝 telnet

sudo yum install telnet -y

安裝 tree 工具

sudo yum install tree -y

安裝 wget

sudo yum -y install wget

開通防火牆

sudo firewall-cmd --add-port=0-65535/tcp --permanent
sudo firewall-cmd --reload
sudo firewall-cmd --list-ports

阻断IP

sudo firewall-cmd --add-rich-rule='rule family="ipv4" source address="202.61.85.36" reject' --permanent
sudo firewall-cmd --reload
sudo firewall-cmd --list-rich-rules

移除阻断IP

sudo firewall-cmd --remove-rich-rule='rule family="ipv4" source address="115.230.127.98" reject' --permanent