CentOS 7 中firewall-cmd命令詳細介紹_Linux

 CentOS 7 中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

檢查設定是否生效
# 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-allpublic (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-serviceamanda-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-allpublic (default) interfaces: sources: services: dhcpv6-client ftp ssh ports: 3128/tcp masquerade: no forward-ports: icmp-blocks: rich rules:

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