CentOS 配置防火墙操作实例（启、停、开、闭端口） 曾经终败给现在 2023-06-23 02:47 1阅读 0赞 CentOS 配置防火墙操作实例（启、停、开、闭端口）： **注：防火墙的基本操作命令：** **查询防火墙状态:** **\[root@localhost ~\]\# service iptables status<回车>** ** ** **停止防火墙:** **\[root@localhost ~\]\# service iptables stop <回车>** ** ** **启动防火墙:** **\[root@localhost ~\]\# service iptables start <回车>** ** ** **重启防火墙:** **\[root@localhost ~\]\# service iptables restart <回车>** ** ** **永久关闭防火墙:** **\[root@localhost ~\]\# chkconfig iptables off<回车>** ** ** **永久关闭后启用:** **\[root@localhost ~\]\# chkconfig iptables on<回车>** 1、查看防火墙状态 \[root@localhost ~\]\# service iptables status<回车> ![aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjQxYkVibi5naWY][] 2、编辑/etc/sysconfig/iptables文件。我们实例中要打开8080端口和9990端口 用编辑器打开/etc/sysconfig/iptables ![aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjQxYkVibi5naWY][] 3、依葫芦画瓢，我们添加8080端口和9990端口 ![aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjY3clZCZS5naWY][] 4、保存/etc/sysconfig/iptables文件，并在终端执行 \[root@localhost ~\]\# service iptables restart <回车> ![aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NzEwa2F0dy5naWY][] 5、从新查看防火墙状态 \[root@localhost ~\]\# service iptables status<回车> ![aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NzM0Tm5OZy5naWY][] 6、这时候，服务器的8080和9990端口就可以对外提供服务了。 7、其他端口的开放模式就是类似如此开放模式。 [aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjQxYkVibi5naWY]: https://imgconvert.csdnimg.cn/aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjQxYkVibi5naWY [aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjY3clZCZS5naWY]: https://imgconvert.csdnimg.cn/aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NjY3clZCZS5naWY [aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NzEwa2F0dy5naWY]: https://imgconvert.csdnimg.cn/aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NzEwa2F0dy5naWY [aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NzM0Tm5OZy5naWY]: https://imgconvert.csdnimg.cn/aHR0cDovL2hpLmNzZG4ubmV0L2F0dGFjaG1lbnQvMjAxMTEyLzUvMF8xMzIzMDc1NzM0Tm5OZy5naWY
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