RE: Port Scanners
- From: "Jim Harrison" <jim@xxxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 30 Oct 2003 07:48:43 -0800
I've been receiving those lately, too.
While I can't make the same profanity-clean verbiage claim, I don't recall
ever having said a m+th#r f*****g cussword in this alias.
;-)
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://www.microsoft.com/isaserver
http://isaserver.org/Jim_Harrison
http://isatools.org
Read the help, books and articles!
----- Original Message -----
From: "Amy Babinchak" <Amy@xxxxxxxxxxxxxxxxxxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Thursday, October 30, 2003 06:26
Subject: [isalist] RE: Port Scanners
http://www.ISAserver.org
Someone's politeness scanner, from this list, sent me an automated message
accusing me of violating their profanity rule! I'm going to forward that on
to my friends. I'm known for never having uttered a profane word. They are
going to get a hoot of out this. It must have been the phrase "good money"
that got me in trouble. :)
Amy
-----Original Message-----
From: Amy Babinchak
Sent: Thursday, October 30, 2003 9:14 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Port Scanners
http://www.ISAserver.org
Jim,
Why change when you're making good money at it?
Amy
Hi William,
That was not meant to be an attack on you, just Steve.
The man wouldn't know a clue if it hit him in the head with a lead pipe in
the kitchen.
;-)
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
On Thu, 30 Oct 2003 07:13:23 +0200
"William Robertson" <robertson.william@xxxxxxxxxxxxxx> wrote:
http://www.ISAserver.org
Aye Jim, thanks for your input. I am aware that there is a strong opinion
out there that Steve Gibson's articles/apps are a bit dodgy (being naïve I
couldn't say this for myself), but knowing this, it is the reading of these
articles that helps me to expand my (limited) knowledge. Granted, I need to
know that they are invalid first, so that I can find out later what makes
them invalid.
As always, thanks for your feedback.
Cheers
-----Original Message-----
From: Jim Harrison [mailto:jim@xxxxxxxxxxxx]
Sent: 29 October 2003 16:14 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Port Scanners
http://www.ISAserver.org
<soapbox>
GRC.com?
Sorry William, but I wouldn't trust Steve Gibson to shave in the morning.
He's the one with primary responsibility for "stealth" and "open a port" in
the public mind.
His tools are crap. "LeakTest, for instance raises a BRF (big red flag) if
you allow FTP through the firewall. Unfortunately, most folks DO allow FTP
outbound. his "theories" are crap (remember the "raw IP in Windows" panic
he raised a couple of years ago?) and his web site is little more than a
panic-driving web-tabloid.
</soapbox>
Also, bear in mind that online scanning, no matter how well written, is only
as accurate as the traffic policies in the devices between you and the
scanning app. For instance, an ICMP unreachable response to the scanner's
request may flag as "ok", but not if it came from an intermediate device.
I'll bet may of the public scanning sites don't even validate this small,
but important point.
My fav's:
- online - www.qualys.com. They are fast, accurate and don't use "pop
networking" terminology or recent events to create a demand for their
serviceor products.
- offline - scanline from www.foundstone.com. You place it on a host just
outside your ISA and let 'er rip. You compare the scanline eport with your
ISA logs and YOU KNOW the state of your firewall policies.
http://www.foundstone.com/index.htm?subnav=resources/navigation.htm&subconte
nt=/resources/proddesc/scanline.htm
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
On Wed, 29 Oct 2003 07:59:31 +0200
"William Robertson" <robertson.william@xxxxxxxxxxxxxx> wrote:
http://www.ISAserver.org
ShieldsUP (My favourite) - https://grc.com/x/ne.dll?bh0bkyd2
Outbound - http://www.hackbusters.net/ob.html
LeakTest (More for personal firewalls, but interesting nonetheless) -
http://grc.com/lt/leaktest.htm
Internet Storm Center (Just general interest regarding ports being used in
the WWW) - http://isc.incidents.org/
FireHole (Just for Interest's sake) - http://keir.net/firehole.html
BackStealth (Also more for outbound communication) -
http://edu.supereva.it/piorio/backstealth.htm?p
FoundStone (If you're concerned about ports etc, then it's always good to
know what these guys are doing) - http://www.foundstone.com/
Cheers
William R.
-----Original Message-----
From: Johnson, Richard (NY Int) [mailto:rjohnson@xxxxxxxxxxxxxxxx]
Sent: 28 October 2003 19:06 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Port Scanners
http://www.ISAserver.org
Can anyone recommend some port scanning sites that will tell me every single
port open on a server?
Thanks,
Rich
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