RE: DNS Server dies after port 1434 attack
- From: "Robert Zeff" <rzeff@xxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 10 Dec 2003 13:26:49 -0800
Hi Glen,
did you figure it out? Was it after an attack?
In my case, BTW, if I disable the publishing rule, wait 5 minutes, and
re-enable, it's food to go for another few days or weeks.
-
_____
From: Glenn Maks [mailto:gmaks@xxxxxxxxx]
Sent: Wednesday, December 10, 2003 1:10 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: DNS Server dies after port 1434 attack
http://www.ISAserver.org
Just an FYI to the group, My ISA also did the same but with published FTP
services.
-----Original Message-----
From: Robert Zeff [mailto:rzeff@xxxxxxxxxx]
Sent: Wednesday, December 10, 2003 9:22 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] DNS Server dies after port 1434 attack
http://www.ISAserver.org
I have another odd problem with ISA. I have a name server (IIS) on an
internal box that answers to 192.168.254.30 & 31
I am publishing this server on ISA for external ip addresses xx.xx.xx.226 &
.227.
Every day or two, sometimes two weeks, one of the publishing rules fails.
There are no errors, it just quits forwarding the request. It seems like it
always happens after an attack on port 1434. From our logs:
12/10/2003, 1:28:59, 66.77.132.210, xx.xx.xx.253, Udp, 1034, 1434, -,
BLOCKED, xx.xx.xx.xx, -, -
12/10/2003, 1:30:30, 211.154.52.146, xx.xx.xx.228, Udp, 4529, 53, -,
BLOCKED, xx.xx.xx.xx, -, -
Any ideas?
Thanks,
-
Robert
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