centos8防火墙,centos8查看防火墙状态

centos8防火墙,centos8查看防火墙状态

实战-CentOS8防火墙设置1.检查防火墙状态系统ctlstatusfirewalld12.打开防火墙系统ctlstartfirewalld13.重新启动防火墙firewall-cmd--reload14.关闭防火墙sys并重新启动防火墙系统ctlrestartfirewalld设置防火墙在系统启动时自动启动ctlenablefirewalld查看防火墙状态系统ctlstatusfirewalld禁用firewall开机自启动系统禁用

＋﹏＋ 1.CentOS8防火墙配置文件1.CentOS8防火墙配置文件位于/etc/firewalld目录下。常用命令：$cd/etc/firewalld/$ls2.修改防火墙配置文件sysconfig配置1.以下是redhat/CentOS8防火墙相关命令1.启动firewalld服务系统ctlstartfirewalld.serviceserviceiptablesstatus2.暂时关闭防火墙walldservicesystemctlstopfirewalld.serviceserviceipta

≥▂≤ 重新启动防火墙系统ctlrestartfirewalld关闭防火墙端口firewall-cmd--remove-port=3306/tcp--permanent查看防火墙状态systemctlstatusfirewalld关闭Centos8设置防火墙查看防火墙状态[parallels@localhost~]$sudofirewall-cmd--state[sudo]passwordforparallels:running[parallels@localhost~]$systemctl

˙﹏˙ 2.显示防火墙的状态。 systemctlstatusfirewalld.service13.启动防火墙。 systemctlenablefirewalld.service14.启动时禁用防火墙。 systemctldisablefirewaCentos8firewall1firewall-cmd--query-port=3306/tcp注意：打开端口后必须重新启动防火墙才能生效1firewall-cmd--zone=public--add-port=3306/tcp--permanent1sy

BasicfirewallconfigurationofRHEL8CentOS8-usecaseBasicfirewallconfigurationofRHEL8CentOS8-usecasesystemctlsystemctlunmaskfirewalld#ExecutethecommandtounmasktheserviceThecommandabovesystemctlmaskfirewallshowsthatmydefaultareaispublic​​,andIallowincomingSSHconnections(port22),dhcpv6-clientandthecockpitserviceportonCentOS8/RHEL8. 默认情况下丢弃所有其他流量