Re: block port scan attackers
- From: "Lim, Arthus T." <alim@xxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 1 Aug 2002 21:37:31 +0800
If I found out that it was a real attack, how can I be able to block
them?
-----Original Message-----
From: Jim Harrison [mailto:jim@xxxxxxxxxxxx]
Sent: Thursday, August 01, 2002 8:59 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: block port scan attackers
http://www.ISAserver.org
If you've received an alert, they were blocked.
Also, not everything ISA alerts on is malicious behavior; sometimes it's
just "late" packets.
You can scan your IP...log for the same date/time as listed in the event
log to see what was
happening that ISA interpreted as a scan and decide from there whether
or not you want to actively
block them.
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/authors/harrison/
Read the books!
----- Original Message -----
From: "Lim, Arthus T." <alim@xxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Wednesday, July 31, 2002 11:17 PM
Subject: [isalist] block port scan attackers
http://www.ISAserver.org
I'm receiving reports like this in my logs:
ISA Server name: TEQUILA
ISA Server detected an all port scan attack from Internet Protocol (IP)
address 65.121.237.200.
For more information about this event, see ISA Server Help.
How can I block certain external IP addresses in ISA?
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