linux防火牆

# 開發端口
firewall-cmd --add-port=3128/tcp
# 查看所以開發端口
firewall-cmd --list-all

public (default)
  interfaces:
  sources:
  services: dhcpv6-client ftp ssh
  ports: 3128/tcp
  masquerade: no
  forward-ports:
  icmp-blocks:
  rich rules:

sudo iptables -L -n | grep 3040
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:3040 ctstate NEW