1) 重启后生效 开启: chkconfig iptables on 关闭: chkconfig iptables off 2) 即时生效,重启后失效 开启: service iptables start 关闭: service iptables stop
service iptables save 关闭SELinux setenforce 0 若用是 CentOS 7,需通过如下命令关闭(防火墙服务改成了 firewall): systemctl stop firewalld.service # 关闭firewall systemctl disable firewalld.service # 禁止firewall开机启动
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