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: