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在 CentOS 7 暂时开放 ftp 服务 # firewall-cmd --add-service=ftp 永久开放 ftp 服务 # firewall-cmd --add-service=ftp --permanent 永久关闭 # firewall-cmd --remove-service=ftp --permanent success 让设定生效 # systemctl restart firewalld 检查设定是否生效 # iptables -L -n | grep 21 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:21 ctstate NEW 检查防火墙状态 # firewall-cmd --state running # systemctl stop firewalld # firewall-cmd --state not running # firewall-cmd --list-all public (default) interfaces: sources: services: dhcpv6-client ftp ssh ports: masquerade: no forward-ports: icmp-blocks: rich rules: 在 FirewallD 的服务名称 # firewall-cmd --get-service amanda-client bacula bacula-client dhcp dhcpv6 dhcpv6-client dns ftp high-availability http https imaps ipp ipp-client ipsec kerberos kpasswd ldap ldaps libvirt libvirt-tls mdns mountd ms-wbt mysql nfs ntp openvpn pmcd pmproxy pmwebapi pmwebapis pop3s postgresql proxy-dhcp radius rpc-bind samba samba-client smtp ssh telnet tftp tftp-client transmission-client vnc-server wbem-https 查询服务的启用状态 # firewall-cmd --query-service ftp yes # firewall-cmd --query-service ssh yes # firewall-cmd --query-service samba no # firewall-cmd --query-service http no 自行加入要开放的 Port # firewall-cmd --add-port=3128/tcp # firewall-cmd --list-all public (default) interfaces: sources: services: dhcpv6-client ftp ssh ports: 3128/tcp masquerade: no forward-ports: icmp-blocks: rich rules: (责任编辑：IT) |