# 查看防火墙状态 systemctl status firewalld
 
# 开启防火墙 systemctl start firewalld

# 关闭防火墙 systemctl stop firewalld 

# 重启防火墙 systemctl restart firewalld 

# 开启6379端口 firewall-cmd --zone=public --add-port=6379/tcp --permanent 

# 关闭端口 firewall-cmd --zone=public --remove-port=6379/tcp --permanent 

# 重启防火墙 firewall-cmd --reload 

# 查看防火墙已开启端口 firewall-cmd --zone=public --list-ports

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