Re: Checking ports on a laptop

From: thepeartree (thepeartree_at_discussions.microsoft.com)
Date: 11/22/04 

Date: Mon, 22 Nov 2004 08:39:06 -0800

I almost agree. In the case of 'Closed' ports, if the port is something like
port 80 or port 21, then you'd better not lock the port or you won't do a lot
of surfing (or anything else online).

Hovel, I wouldn't worry too much. You have ZoneAlarm behind a hardware
firewall and very little dangerous activity is going to get past tht combo.
One thing I would suggest, though, is to go into the router config pages and
change the base DHCP address and default admin password. That way the bad
guys are going to have a very hard time hacking into therouter setup to get
past it.

"Phil" wrote:

> Blocked and stealth are basicly the same thing. It means not even a port
> scan reveals that a port even exist. It's hidden and no connections are
> allowed.
> Closed means that the port can be seen, but a connection cannot be
> established until something triggers it to open.
> You want stealth/blocked all the time. Find out what ports were marked as
> just closed, then google for a program clled TCPView and see what program is
> using that port, then config the program or shut it down.
>
> "Tosca" <no-spam@thank-you.com> wrote in message
> news:OiAoEaCwEHA.1524@TK2MSFTNGP09.phx.gbl
> > Hi Everyone
> >
> > I have a single laptop behind a Netgear router connected to an ADSL
> > line. I access e-mail and surf the net but do little else. I have
> > ZoneAlarm on the laptop, in addition to the Firewall in the router.
> > I have XP Pro and have turned off it's firewall.
> >
> > I ran two online port scans and one said that some ports were
> > "Blocked" (good, according to the site) whilst others were "Closed"
> > (less good, according to the site). The other online port scan said
> > that the same ports were "Stealth" (good, apparantly). One site was
> > http://www.sygatetech.com whilst the other was http://www.grc.com.
> > I'm not sure why these reputable sites gave different results.
> > What's the difference between "Blocked", "Closed" and "Stealth"?
> > Which is best, given my limited activity (I also use ftp occasionally
> > to access other sites but don't want anyone to probe my laptop to
> > access any data) and how do I alter the status of the ports?
> >
> > Maybe these questions demand too detailed a response here and, in
> > that case, can anyone point me to a "fools guide" that I could use as
> > a springboard to delve further? I've googled but the information
> > that I obtained seemed to confuse me more.
> >
> > Thanks for your time and patience.
>
>
>

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