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LAN protection

Discussion in 'Windows XP' started by balzer, Apr 13, 2010.

  1. balzer

    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?
     
  2. smlunatick

    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.
     
  3. balzer

    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
     
  4. John

    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".
     
  5. balzer

    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?
     
  6. John

    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.
     
  7. VanguardLH

    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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