CertOS7 防火墙端口开放 firewall-cmd

# 开放1521端口
firewall-cmd --zone=public --add-port=1521/tcp --permanent

# 开放1521端口给信任ip
firewall-cmd --permanent --remove-rich-rule="rule family="ipv4" source address="ip" port protocol="tcp" port="1521" accept"

# 配置生效
firewall --reload

# 查看当前配置
firewall-cmd --reload