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LAN protection

B

balzer

Flightless Bird
Small LAN, 5 PCs. How to protect one PC inside LAN(isolate from other PCs):
to prevent from connecting other computers to that PC, or share files?
 
S

smlunatick

Flightless Bird
On Apr 13, 2:03 pm, "balzer" <bal...@nospam.microsoft.news> wrote:
> Small LAN, 5 PCs. How to protect one PC inside LAN(isolate from other PCs):
> to prevent from connecting other computers to that PC, or share files?


Several ways:

1) Software firewall on that PC. Block all incoming access and
disable "File/Printer" sharing.

2) Add a separate router. Makes this PC part of a second "LAN"
network and remaining PC would not be able to access it.
 
B

balzer

Flightless Bird
"smlunatick" <yveslec@gmail.com> wrote in message
news:0b0b1f05-85e4-4fde-99c1-47d970264087@b33g2000yqc.googlegroups.com...
On Apr 13, 2:03 pm, "balzer" <bal...@nospam.microsoft.news> wrote:
> Small LAN, 5 PCs. How to protect one PC inside LAN(isolate from other
> PCs):
> to prevent from connecting other computers to that PC, or share files?


Several ways:

1) Software firewall on that PC. Block all incoming access and
disable "File/Printer" sharing.

2) Add a separate router. Makes this PC part of a second "LAN"
network and remaining PC would not be able to access it.
-------------

1) Windows firewall enabled, but its not secure, allows add expecption
How make sure "File/Printer" sharing disabled?
2) no way add separate router
 
J

John

Flightless Bird
"balzer" <balzer@nospam.microsoft.news> wrote in message
news:u3ryAhx2KHA.3568@TK2MSFTNGP04.phx.gbl...
> 1) Windows firewall enabled, but its not secure,


What makes you think it is not secure?

> allows add expecption


Adding exception is not possible if the user is a regular user (non admin)

> How make sure "File/Printer" sharing disabled?


Uncheck "File and Printer Sharing" check box in Windows firewall Exception
or enable "Don't allow exceptions".
 
B

balzer

Flightless Bird
"John" <a> wrote in message news:%23J049Uy2KHA.1624@TK2MSFTNGP06.phx.gbl...
>
> "balzer" <balzer@nospam.microsoft.news> wrote in message
> news:u3ryAhx2KHA.3568@TK2MSFTNGP04.phx.gbl...
> > 1) Windows firewall enabled, but its not secure,

>
> What makes you think it is not secure?
>
> > allows add expecption

>
> Adding exception is not possible if the user is a regular user (non admin)
>
> > How make sure "File/Printer" sharing disabled?

>
> Uncheck "File and Printer Sharing" check box in Windows firewall Exception
> or enable "Don't allow exceptions".
>

--------
The special server (hardware) has been attached between provider's DSL cable
and dsl modem, for interception and recording all voice conversations (and
internet traffic also, seems). One PC have access to that server(probably
some management software installed) for monitoring conversations
periodically. Is there way protect or scramble internet traffic between one
of the rest PCs and WAN? Or not possible, and each packet can be read by
that server?
 
J

John

Flightless Bird
"balzer" <balzer@nospam.microsoft.news> wrote in message
news:%23UMZWE12KHA.3844@TK2MSFTNGP05.phx.gbl...
> The special server (hardware) has been attached between provider's DSL
> cable
> and dsl modem, for interception and recording all voice conversations (and
> internet traffic also, seems).


Is that a VOIP box that allows you to make regular phone calls to any phone?

> One PC have access to that server(probably
> some management software installed) for monitoring conversations
> periodically.


How do you know the "server" monitors conversations?

> Is there way protect or scramble internet traffic between one
> of the rest PCs and WAN? Or not possible, and each packet can be read by
> that server?


What is this "server" you're talking about? Btw, your original post asks a
completely diferent question. Start a new thread if you have a new question.
 
V

VanguardLH

Flightless Bird
balzer wrote:

> Small LAN, 5 PCs. How to protect one PC inside LAN(isolate from other PCs):
> to prevent from connecting other computers to that PC, or share files?


Go to the switch device (which might be the frontend to a router) and
configure that host (by MAC or IP address) as isolated or inaccessible to
the other hosts. How to do this depends on what switch/router you use. I
used to be able to do this in my old DLink router but not in my Linksys.

On the host that you want to isolate, you could disable the exception in
Windows Firewall that allows the file and printer sharing protocols/ports.
Or you could go into the TCP properties of your LAN connectoid in the
Network applet in Control Panel to disable the File and Printer Sharing
protocol.
 
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