Re: IP filtering

From: Sigitas Skublickas (sskublickas@acf.hhs.gov)
Date: 01/31/03 

From: "Sigitas Skublickas" <sskublickas@acf.hhs.gov>
Date: Fri, 31 Jan 2003 11:54:57 -0500

Thanks you for information you provided. I really appreciete it.
Is there any way how can I check which port accepts incomint trafic ?
Any tool you would recommend ?
Thanks
Sigitas

"Karl Levinson [x y] mvp" <jamescagney90210@excite.com> wrote in message
news:OQ6wptKyCHA.640@TK2MSFTNGP12...
> IP filtering won't prevent the server from listening. It might prevent
the
> server from responding. I"m also not sure the IP filtering feature will
> block outbound connections, so that worms and other remote access trojans
> might still be able to remotely control your computer or email out
password
> files or other data. There's also no logging or alerting or intrusion
> detection, so if you're hacked, good luck finding the hacker.
>
> Having said all that, closing a port is not just about filtering, it's
also
> about finding the service that's listening on a port and disabling that
> service. Vision from www.foundstone.com/knowledge or www.google.com both
> might help you determine what service to disable, as would posting the
port
> numbers here.
>
> See here for some other things you might want to do to make sure your
> computer is secure:
>
> http://securityadmin.info/faq.htm#harden
> http://securityadmin.info/faq.htm#closeport
>
>
> "Sigitas Skublickas" <sskublickas@acf.hhs.gov> wrote in message
> news:OgVzdHKyCHA.2684@TK2MSFTNGP11...
> > Can anybody help me with this:
> > I set up IP filtering on my NIC enabling only 20, 21, 80 and 3389 ports.
> > How can make sure my server acceps calls ONLY on those ports? When
> > I type in CMD netstat -a I get a list of at least 30 TCP or UDP ports
> > that are in listening mode. Thanks in advance !
>
>
>
>
> ---
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>

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