Re: Newbie firewall config guides?

From: Duane Arnold (notme_at_notme.com)
Date: 12/06/03

  • Next message: Gadi Evron: "Re: Keystroke Monitoring Software" 
    Date: Sat, 06 Dec 2003 05:08:28 GMT

    "nooneimportant" <nospam@forme.net> wrote in
    news:_AcAb.310967$9E1.1563132@attbi_s52:

    > Trying to find out how to configure a firewall, generally consider
    > myself pretty system savvy. Run Ad-Aware and Spybot S&D religiously.
    > Have tried running a firewall other then the XP included one before,
    > and had a headache with it so removed it... Trying again now.
    >
    > What i have is a desktop connected to the internet via cable
    > broadband, have coax from the wall to the cable modem, then cat5patch
    > from modem to desktop. Connected to the desktop is also a laptop on
    > Cat5crossover (no hub or router in use). I have zonealarm installed
    > on the desktop, and have no problem accessing the internet or using
    > programs that connect to the internet (instant messaging etc.) from
    > the desktop, but it halts all traffic from my laptop. I know an easy
    > solution would be to get a router, then set zonealarm up on both
    > machines, but i'm a bit on the cheapside and am trying to learn more
    > about firewalling (pretty sad when i have an IT degree yet never
    > learned a damn thing about system security, wonderful school i went to
    > didn't offer anything remotely related). I have googled myself into
    > a corner and can find all kinds of goodies for setting up on a single
    > machine, but nothing for a config similar to what i have here... I
    > know its possible so i put my question to the almighty firewall guru's
    > here to point me the right direction. Suggestions?
    >
    >
    >
    >

    Why do you need a crossover cable? That would be if you wanted to connect
    two computers together network card to network card. You need a regular
    cat5 cable connected into the second NIC on the desktop doing ICS with
    the first NIC on the machine with the cable form the second NIC connected
    to a computer, stand alone hub or stand alone switch.

    One NIC facing the Internet (the modem) and the second NIC facing the
    (LAN) the other machine or with a stand alone hub or switch connected to
    the second NIC with machines connected to the hub or switch, requesting a
    DHCP IP from the gateway machine.

    You should look into TCP/IP Security on the XP machine. Maybe you can go
    to the library and checkout the Windows XP Pro Resource Kit Book that
    explains how to implement it.

    This is something I am now learning about the Win2k and XP O/S(s) that
    will supplement the protection of a NAT router or host based FW.

    http://lists.gpick.com/pages/IP_Security_(IPSec).htm

    You may want to *harden* the O/S a little bit from attack.

    http://www.uksecurityonline.com/husdg/windowsxp.php

    Also Active Ports and Process Explorer (both free) and use Google to find
    them.

    You should look around every now and then on GP.

    Duane :)

      

  • Next message: Gadi Evron: "Re: Keystroke Monitoring Software"

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