睇左教学, 但都唔识点SET netgear 既port foward

我见netgear有　DMZ SERVER，　但我唔见有PORT FOWARD

咁即系得DMZ SERVER 可以SET ?

咁DMZ SERVER SET 左听讲安全低好多,,

而真系得DMZ , 又可以点SET?

你睇左呢个

有D叫port forward，有D叫virtual server

What is port forwarding?

Software ports are numbered connections that a computer uses to sort types of network traffic.

A port might support incoming traffic, outgoing traffic, or both.

___________


A few services, such as FTP on port 21 and HTTP on port 80, are assigned by default to open ports where operating systems can find them easily.

______________

When a port is opened, a service, such as an online game, is assigned to it.

For security, by default all ports to the Internet and most LAN ports are closed so that traffic cannot flow through them.

Before starting, you need to determine which type of service, application,

or game you want to provide,


and the local IP address of the computer that will provide the service.

____________

The server computer must always have the same IP address.

http://kb.netgear.com/app/answers/detail/a_id/20917

Port forwarding or port mapping[1] is a name given to the combined technique of

(1) translating the address or port number of a packet to a new destination
(2) possibly accepting such packet(s) in a packet filter (firewall)
(3) forwarding the packet according to the routing table.

_____________

The destination may be a predetermined network port

(assuming protocols like TCP and UDP, though the process is not limited to these)

on a host within a NAT-masqueraded, typically private network, based on the port number on which it was received

at the gateway from the originating host.

___________________

The technique is used to permit communications by external hosts with services provided within a private local area network.