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【转载】CentOS 7 防火墙firewall-cmd命令

在 CentOS 7
暫時開放 ftp 服務
# firewall-cmd –add-service=ftp
永久開放 ftp 服務
# firewall-cmd –add-service=ftp –permanent
永久關閉
# firewall-cmd –remove-service=ftp –permanent
success
讓設定生效
# systemctl restart firewalld
檢視設定是否生效
# iptables -L -n | grep 21
ACCEPT  tcp  —  0.0.0.0/0  0.0.0.0/0  tcp dpt:21 ctstate NEW

檢查防火牆狀態
# 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 的服務名稱
# 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
查詢服務的啟用狀態
# firewall-cmd –query-service ftp
yes
# firewall-cmd –query-service ssh
yes
# firewall-cmd –query-service samba
no
# firewall-cmd –query-service http
no
自行加入要開放的 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:

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