RE: Disabling NETBIOS

  • From: "Jim Harrison" <jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Mon, 31 Mar 2003 07:34:25 -0800

DNS name resolution if what's required for Internet (FQDN) names.

 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: "Sachin Vaish (VGL)" <sachin.vaish@xxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Monday, March 31, 2003 07:31
Subject: [isalist] RE: Disabling NETBIOS


http://www.ISAserver.org


We have disabled NETBIOS on the ISA Server to make it harder for users to
illegally enter the network internally.

Will this have an affect on the internet bandwidth?

Sachin Vaish
Vaioni Group Limited
t: 0870 160 0650
f: 0870 160 0651
Please note our new address below:
32 Leslie Hough Way
Manchester
M6 6AJ

-----Original Message-----
From: Jim Harrison [mailto:jim@xxxxxxxxxxxx]
Sent: 31 March 2003 15:52
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: DOS attack

http://www.ISAserver.org


Most often, slow response through ISA is caused by poor name resolution.
You need to be absolutely sure that ISA can resolve internal and external
names quickly.
There are several articles at www.isaserver.org that discuss ISA and DNS
configurations.
Also, the type of client request has a lot to do with it as well.


  Jim Harrison
  MCP(NT4, W2K), A+, Network+, PCG
  http://isaserver.org/Jim_Harrison/
  http://isatools.org
  Read the help / books / articles!



http://www.ISAserver.org


Well I have been struggling to sort out a problem we have. It seems we have
a problem with our bandwidth. For some reason out of the 10MB bandwidth
(ADSL) we only ever receive around 2MB. Every user complains "the internet
is too slow". We are using Rainconnect to aggregate the bandwidth. We have
finally reached the following conclusions:

- Either we are receiving DOS attacks
- Kazaa or MSN messenger (I think Kazaa) is causing the bandwidth degrading
- Or it maybe the ADSL routers

Regards

Sachin Vaish
Vaioni Group Limited
t: 0870 160 0650
f: 0870 160 0651
Please note our new address below:
32 Leslie Hough Way
Manchester
M6 6AJ

-----Original Message-----
From: Jim Harrison [mailto:jim@xxxxxxxxxxxx]
Sent: 29 March 2003 00:51
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: DOS attack

http://www.ISAserver.org


For the most part (proper configuration), ISA is self-protecting.
Is there a particular attack you're concerned about?
DoS is a generic term referencing any attack that reduces or completely
eliminates your network connectivity.

 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: "sachin vaish" <sachin.vaish@xxxxxxxxxx>
To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
Sent: Friday, March 28, 2003 16:38
Subject: [isalist] DOS attack


http://www.ISAserver.org


Hi,

How do i protect my ISA Server from DOS attacks?

Is there a way t find out whether my ISA server is being DOS attacked?

Regards

Sachin

Free Trial Software: Monitor & Manage Web Use with SurfControl Web Filter
for MS ISA Server http://www.surfcontrol.com/go/zisadl1

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