linux開啓防火牆

https://www.dafeiyu.cn/f/article/9.html https://www.centos.bz/2018/01/iptables%E6%9F%A5%E7%9C%8B%E3%80%81%E5%BC%80%E6%94%BE%E3%80%81%E5%88%A0%E9%99%A4%E7%AB%AF%E5%8F%A3%E3%80%81%E4%BF%9D%E5%AD%98%E8%A

>>阅读原文<<