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Posted by fletch on 04/25/06 11:59
Not for this NG, but nevertheless:
Short answer, your probably ok, test from outside the network, long
answer below.
You will have a connection to the internet on a router. Each computer
connects to the internet through this router. (I assume this is true).
Everything in your office is the local network (including any wifi
routers), and anything on the otherside of the router is the external
network (i.e. the internet).
The router is a bottleneck.
Each computer behind the router has "ports" and when data is sent to a
computer over TCP/IP it is sent with a "port number" for web stuff the
number is usually 80. Also each computer has an IP address, and the
ones in the local network have to use the ip address of the router to
get things from the network. The router then figures out who requested
data as it came in.
To get data to a computer in the local network you therefore need the
router to know which of the incoming data to send to that computer. One
method is because it is a response to a request. This is how you get to
go on the internet.
Another is port forwarding. If I send data to your router requesting a
certain port, then the router can be set up to forward that data to a
certain computer. It is therefore possible to get your server on the
web, but unless someone has gone to the trouble of setting up port
forwarding then it is unlikely that you have anything to worry about.
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