Re: Networking XP home & PRO computers w/Linksys Router

From: Derek (Derek_at_discussions.microsoft.com)
Date: 07/01/04 

Date: Thu, 1 Jul 2004 13:29:01 -0700

Is there another way to do this. Perhaps, using Static IP's on the computers?

"Chuck" wrote:

> On Thu, 1 Jul 2004 12:25:02 -0700, "Derek" <Derek@discussions.microsoft.com>
> wrote:
>
> >Dear Chuck,
> >
> >Just want to ask one more question. The Linksys Router is connected to the internet. It is a firewall that prevents other people from seeing the network. I you open (guest account), is that a security threat?
>
> Derek,
>
> The Linksys router uses NAT to route solicited network traffic to the computer.
> Unsolicited (malevolent) network traffic goes nowhere, producing a firewall
> effect.
>
> The router is one component of protection. It only filters incoming network
> traffic.
>
> Other bad stuff that you need to defend against is spyware and viruses. An
> attack of either, directed against a weak (well known) object such as the Guest
> account, could infect your computer. For that reason, use of the Guest account
> is not encouraged.
>
> Since you have an XP Home system, however, you cannot avoid use of the Guest
> account. But, you can protect yourself in other ways.
>
> Install a personal firewall on both computers. A good firewall for novices is
> ZoneAlarm (free) from <http://www.zonelabs.com/store/content/home.jsp>. A
> personal firewall will defend you against any incoming attack thru the NAT
> router, plus defend you against unwanted outgoing traffic from installed spyware
> or viruses.
>
> Use AntiVirus protection. Realtime, plus a regularly scheduled virus scan.
> Regularly updated.
>
> Use Adware / spyware protection. Realtime, plus a regularly run adware /
> spyware scan. Regularly updated.
> Complete instructions, using Spybot S&D and HijackThis (both free) are here:
> <http://forums.spywareinfo.com/index.php?showtopic=227>.
>
> Harden your browser. There are various websites which will check for
> vulnerabilities, here are three which I use.
> http://www.jasons-toolbox.com/BrowserSecurity/
> http://bcheck.scanit.be/bcheck/
> https://testzone.secunia.com/browser_checker/
>
> Block Internet Explorer ActiveX scripting from hostile websites (Restricted
> Zone).
> <https://netfiles.uiuc.edu/ehowes/www/main.htm> (IE-SpyAd)
>
> Set up blocking of known dangerous scripts from installing.
> <http://www.javacoolsoftware.com/spywareblaster.html>
>
> Block known spyware from installing.
> <http://www.wilderssecurity.net/spywareguard.html>
>
> Harden your operating system. Check at least monthly for security updates.
> http://windowsupdate.microsoft.com/
>
> Block possibly dangerous websites with a Hosts file. Three Hosts file sources I
> use:
> http://www.accs-net.com/hosts/get_hosts.html
> http://www.mvps.org/winhelp2002/hosts.htm
> (The third is included, and updated, with Spybot (see above)).
>
> Maintain your Hosts file (merge / eliminate duplicate entries) with:
> eDexter <http://www.accs-net.com/hosts/get_hosts.html>
> Hostess <http://accs-net.com/hostess/>
>
> Secure your operating system, and applications. Don't use, or leave activated,
> any accounts with names or passwords with trivial (guessable) values. Don't use
> an account with administrative authority, except when you're intentionally doing
> administrative tasks.
>
> Use common sense. Don't install software based upon advice from unknown
> sources. Don't install free software, without researching it carefully. Don't
> open email unless you know who it's from, and how and why it was sent.
>
> Stay educated. Know what the risks are. Stay informed. Read Usenet, and
> various web pages that discuss security problems. Check the logs from the other
> layers regularly, look for things that don't belong, and take action when
> necessary.
>
> Cheers,
> Chuck
> Paranoia comes from experience - and is not necessarily a bad thing.
>

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