RE: How I spent my Christmas vacation
- From: "Thomas W Shinder" <tshinder@xxxxxxxxxxx>
- To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
- Date: Tue, 3 Jan 2006 12:07:39 -0600
Hi Dan,
Why not use the ISA logs? If not the logs, you could use MRTG.
Tom
Thomas W Shinder, M.D.
Site: www.isaserver.org <http://www.isaserver.org/>
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7>
MVP -- ISA Firewalls
**Who is John Galt?**
________________________________
From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
Sent: Tuesday, January 03, 2006 11:58 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: How I spent my Christmas vacation
http://www.ISAserver.org
That does lead me down another avenue of investigation... My
number of NDRs isn't exceedingly high, and there isn't all that much in
the SMTP queue. I'm wondering about Amy's mention that her problem was
due to an upstream DNS server. Is there any other way than the Firewall
Logs to see how much DNS traffic is passing through the ISA server?
________________________________
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
Sent: Tuesday, January 03, 2006 12:48 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: How I spent my Christmas vacation
http://www.ISAserver.org
Hi Amy,
You bet! The DNS stuff can drive you crazy. That's one nice
thing about the Exchange SMTP service, that you can disable NDRs. You
can't do that with the IIS SMTP service. I'm hoping that the Longhorn
IIS SMTP service will allow for the same functionality.
Thomas W Shinder, M.D.
Site: www.isaserver.org <http://www.isaserver.org/>
Blog: http://spaces.msn.com/members/drisa/
Book: http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7>
MVP -- ISA Firewalls
**Who is John Galt?**
________________________________
From: Amy Babinchak
[mailto:amy@xxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, January 03, 2006 11:41 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: How I spent my Christmas vacation
http://www.ISAserver.org
I agree. Most of the ISA problems can be explained by
poor DNS and/or IIS configuration. I spent some of my "holiday" chasing
down DNS issues for 2 clients. In both cases it turned out that the ISP
DNS was sluggish and was causing email problems for my clients. Exchange
wasn't able to use the smart host with any efficiency. Messy stuff
trying to explain smart hosts and DNS resolution in plain english. Maybe
I should forward the article on to the ISP's! If only their staff could
read.
I've had to turn off NDR for two servers. I hated to do
it but the queues of NDR's in Exchange were just beyond reason. You
wouldn't believe the amount of junk mail that Travel Agencies and Real
Estate firms receive.
Amy
Harbor Computer Services
Small Business Computer Specialists
Client Blog: http://smalltechnotes.blogspot.com/
Tech Blog: http://isainsbs.blogspot.com/
Website: http://www.harborcomputerservices.net/
________________________________
From: Ball, Dan [mailto:DBall@xxxxxxxxxxx]
Sent: Tuesday, January 03, 2006 12:26 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: How I spent my Christmas vacation
http://www.ISAserver.org
Good article Tom! Gave me another thing to check next
time things turn sluggish!
________________________________
From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx]
Sent: Tuesday, January 03, 2006 11:39 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] How I spent my Christmas vacation
http://www.ISAserver.org
Here's an interesting story on Internet performance
issues:
http://spaces.msn.com/members/drisa/Blog/cns!1p9yz6owxXl-uIlyqIZXkCrg!39
0.entry
<http://spaces.msn.com/members/drisa/Blog/cns!1p9yz6owxXl-uIlyqIZXkCrg!3
90.entry>
Thomas W Shinder, M.D.
Site: www.isaserver.org <http://www.isaserver.org/>
Blog: http://spaces.msn.com/members/drisa/
Book: <http://tinyurl.com/3xqb7>
http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
**Who is John Galt?**
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