Re: [sniffer] High False Positives

2004-03-25 Thread Pete McNeil
There was a bad rule yesterday. It was removed almost immediately but it 
looks like you missed the update until 1000pm. It takes a while to compile 
rulebase updates. Since you mention 4pm and 10pm I'm guessing you have your 
updates scheduled. A better method would be to trigger updates based on an 
update notification since this allows us to correct problems like this more 
quickly. If I've assumed wrong, please disregard.

Thanks,
_M
At 10:27 AM 3/25/2004, you wrote:
I had a high number of false positives yesterday starting after my 4:00 PM
(CST) Sniffer update. I believe it occurred about the time of the spam storm
yesterday, when many spam messages made it through the filter.
It appeared to stop at 10:00 PM but I don't know if people quit sending
messages for the day or if my Sniffer update fixed the issues.
I haven't seen any today (did some spot checks); do I need to submit all the
messages that were false positives?
Did something happen yesterday?

Al Thornberry

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Re: [sniffer] Help

2004-03-25 Thread Matt




Have you tried a reboot? Checked your error logs? Made sure that DNS
and all of your E-mail services are running?

Is there even a chance that you will be able to receive this message?

Matt



Richard Farris wrote:

  I just did an Windows NT update and now I cant get any email...when I turn
sniffer off I at least can send mail to myself but still cant get from
outside..any ideas.,

Richard Farris
Ethixs Online
1.270.247. Office
1.800.548.3877 Tech Support

- Original Message - 
From: "Pete McNeil" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, March 24, 2004 2:01 PM
Subject: Re: [sniffer] Possible Bad Rule?


  
  
We had a badly coded rule that matched yahoo.
The rule has been removed.
About 30 rulebases went out before it was caught.
These are being recompiled with the correction right now.
I will see if I can push yours to the top.

_M

At 02:02 PM 3/24/2004, you wrote:


  I am getting a lot of complaints today from Yahoo users...

Sheldon


- Original Message -
From: "Darrell LaRock" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Cc: "'SnifferSupport'" [EMAIL PROTECTED]
Sent: Wednesday, March 24, 2004 10:33 AM
Subject: [sniffer] Possible Bad Rule?


  
  
Pete,



I am seeing a ton of false positives for RULE 100543.  I sent a few in

  

  
  to
  
  

  
you to check out ([EMAIL PROTECTED]).  I wanted to post this here as well

  

  
  since it
  
  

  
seems to take approx. 24 hours to process false positives.



Darrell











  
  
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[sniffer] log upload trouble

2004-03-25 Thread Glenn \\\\ WCNet
I've been having trouble for the last 24 hrs or maybe a bit more with log
uploads failing.  The FTP either fails to connect, or it does connect and
the upload begins and then fails after a small percentage done.  Uploads are
scheduled every 6 hours.  Yesterday afternoon I tried renaming the log files
from a couple failures and triggering the upload manually, and it also
failed

An upload started a few mins ago, at 12:05 PM.  It progressed almost to
completion, and then ended with a reported failure from WS_FTP.

Glenn Z.
WCNet



- Original Message - 
From: Pete McNeil [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, March 20, 2004 1:13 AM
Subject: Re: [sniffer] Define Persistent sniffer.


 At 09:50 PM 3/19/2004, you wrote:
 Pete,
 I follow this forum pretty well, however, having been out this
  week on business it seems I have lost alot with this new feature set.
If
  you don't mind, could you define Persistent Sniffer?  We average well
  over a million emails a day between two servers, what impact might I see
  on our server if I run this?  What is the recommended settings?  Thanks
  for the aid.

 (Seems I'm in the book writing mode this evening... sorry for the
bandwidth)

 
 Performance Metrics:

 Our NT4/SP6a test bed, running IMail/Declude/Sniffer in persistent mode.
 P2/450, 2x 5400rpm IDE drives, mirrored, 256M Ram (No giggles please -
This
 is an intentionally underpowered server - how better to stress test a
 program like Sniffer?).

 Sniffer in persistent mode on this box is able to process 120k msgs /
month
 without issue. Logs show that each message on average now takes about
100ms
 total. Typical values are 20ms queue, 40ms scan though obviously some
 messages take longer and occasionally longer queue times do creep in.

 Prior to testing the persistent version of Sniffer, message scan times
 varied wildly but averaged about 300ms per message with some messages
 taking 3-5 seconds while waiting for I/O and other processes (Web Mail,
 IMAP, etc...). In fact, I intentionally waited until the CPU was at 100%
 (green line 100%, red line 50%+) before starting the service to see how
the
 creatures would handle the transition under heavy stress - The CPU dropped
 so much that at first I thought I had broken something (one of those
oops
 moments).

 The CPU now rests on the floor more often than not and generally runs
peaks
 to about 50% unless something odd is going on - such as a defrag run.

 YMMV - the above data is based on a very narrow data sample and only
 loosely calculated - and some of it is anecdotal. However most reports
from
 the field seem to support the general scale of improvement.

 On the back of the envelope I can calculate something like: 1 million per
 day is probably on the order of 125000 (1M/8hours) during a peak hour.
 125000/3600 = about 35 per second. If message sniffer can scan about 10
per
 second on an overloaded p2/450, then on a 2.4ghz machine with plenty of
 memory we might expect at least a linear improvement - approximately 5x,
 but we will say 4x to be safe - 40/sec covers 35/sec so we have our
million
 based on these assumptions.

 IO not withstandng I would expect a persistent server version of Sniffer
on
 a well provisioned server with a 2.4ghz processor to handle 1 million per
 day _IF_ that's all it had to do... since there's always more to do and
 this would be a maximum load scenario, dividing this across two servers
 should work nicely - though it would probably be time to start considering
 a third server.

 Then again, you are probably not running generic single processor servers
 if you are handling 1 million messages per day ;-)

 ___
 Definition:

 Probably the simplest definition of Persistent Sniffer as you put it is
a
 lightweight daemon. It can't actually be launched as a daemon/service on

 it's own, and it is still compatible with the self-organizing-automata
 version of Sniffer, but it offers many of the performance savings of a
 daemon/service - along with some added redundancy and flexibility. For
 example, if the persistent server instance of Sniffer fails, then the
other
 instances simply return to their normal peer-server mode of operation so
 there is a drop in performance, but not a loss of service.

 
 More Detail:

 Versions of Message Sniffer prior to 2-2 would always load the rule-base
 each time a message was to be scanned. Specifically, each instance of
 Message Sniffer was isolated and did the job itself. Up to 90% of the
 processing time typically required was bound in loading the rule-base
file.
 On our NT test bed, for example, we would regularly see queue/scan times
on
 the order of 1000/10, though more commonly 360/60 at the time when we
 developed version 2-2.

 Beginning with Version 2-2, we implemented a cellular peer-server
 technology with Message Sniffer. This technology allows instances of
 Message Sniffer running on the same server to interact and 

RE: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
That is possible. I'm still looking for an alternate repeatable cause.
_M
At 08:43 PM 3/24/2004, you wrote:

I see over a 1000 of these ERROR_BAD_MATRIX entries in my Sniffer log file
today, as well.  Is this due to the ruleset issue from earlier today?
Bill

-Original Message-
From: Sheldon Koehler [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 24, 2004 3:19 PM
To: [EMAIL PROTECTED]
Subject: Re: [sniffer] Spam storm?
Well it may not be a spam storm. Log file shows:

nsx4b3eh 20040324200108 De90392330028271a.SMD 421 0 ERROR_BAD_MATRIX 71 0 0
2 5
nsx4b3eh 20040324200117 De90c923a00284b5b.SMD 422 0 ERROR_BAD_MATRIX 71 0 0
What is a Bad Matrix?

Sheldon

Sheldon Koehler, Owner/Partnerhttp://www.tenforward.com
Ten Forward Communications   360-457-9023
Nationwide access, neighborhood support!
Whenever you find yourself on the side of the majority, it's time
to pause and reflect. Mark Twain


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The information contained herein may include trade secrets or privileged or
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Re: [sniffer] Error_Bad_Matrix

2004-03-25 Thread Heimir Eidskrem
I am having the same problem when I download the update and run snf2check

H.

- Original Message - 
From: Landry William [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 25, 2004 2:57 PM
Subject: RE: [sniffer] Error_Bad_Matrix



 I run snf2check.exe against every .snf file downloaded.  I just checked it
 again manually, and no errors were reported.  I now have almost 3500
 Error_Bad_Matrix entries in today's log.

 Bill

 -Original Message-
 From: Vivek Khera [mailto:[EMAIL PROTECTED]
 Sent: Thursday, March 25, 2004 12:52 PM
 To: [EMAIL PROTECTED]
 Subject: Re: [sniffer] Error_Bad_Matrix



 On Mar 25, 2004, at 3:39 PM, Paul Lushinsky wrote:

  I decided to look in my log files for the past several days because of
  number of Error_Bad_Matrix related messages. I can't find this message
  in any of my log files until today starting with the update I auto
  downloaded at 8:15 this morning, and went until the update at noon.
  While I was look at the log file, another update notice came, so an
  update was done and the Error_Bad_Matrix message is back.
 


 I'm curious if the people who are seeing these messages are running
 snf2check.exe before making the rule files live.  I do so, and have not
 seen a single instance of this error.

 Can you run snf2check.exe on the current bad matrix you have and see if
 it reports an error?


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 This message and any included attachments are from Siemens Medical
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 USA, Inc. and are intended only for the addressee(s).
 The information contained herein may include trade secrets or privileged
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 otherwise confidential information.  Unauthorized review, forwarding,
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 copying, distributing, or using such information is strictly prohibited
and may
 be unlawful.  If you received this message in error, or have reason to
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Re: [sniffer] Spam storm?

2004-03-25 Thread Sheldon Koehler
This has been a bad week here!

A big increase in total email volume, a huge increase in false positives as
well as a huge increase in spam getting past our filters.


Sheldon


Sheldon Koehler, Owner/Partnerhttp://www.tenforward.com
Ten Forward Communications   360-457-9023
Nationwide access, neighborhood support!

Whenever you find yourself on the side of the majority, it's time
to pause and reflect. Mark Twain


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Re: [sniffer] Spam storm?

2004-03-25 Thread Computer House Support
We've found that when we do a manual download, everything works fine.  It's
the automatic download on the Windows 2000 server that seems to corrupt
things.


M. Stein
Computer House




- Original Message - 
From: Pete McNeil [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 25, 2004 6:05 PM
Subject: Re: [sniffer] Spam storm?


This helps narrow things down. Specifically we know that the rulebase files
are not corrupted on the server but during the download. That explains why
I haven't been able to recreate a problem in the lab.

I have a suspicion that wget may be failing intermittently.
Another customer recently had unexplainable, intermittent issues with wget.
They replaced wget with code of their own and have had no further problems.

Can we narrow this down to wget under heavy traffic conditions perhaps?

_M


At 10:08 PM 3/24/2004, you wrote:
I've noticed that if I do a manual download of the rule base file, it works
well, but if it is downloaded automatically via the Windows Task CMD, then
sniffer fails and the log fills up with the BAD_MATRIX errors.

Anyone else seeing this?


Mike


- Original Message -
From: Landry William [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, March 24, 2004 8:43 PM
Subject: RE: [sniffer] Spam storm?


 
  I see over a 1000 of these ERROR_BAD_MATRIX entries in my Sniffer log
file
  today, as well.  Is this due to the ruleset issue from earlier today?
 
  Bill
 
  -Original Message-
  From: Sheldon Koehler [mailto:[EMAIL PROTECTED]
  Sent: Wednesday, March 24, 2004 3:19 PM
  To: [EMAIL PROTECTED]
  Subject: Re: [sniffer] Spam storm?
 
 
  Well it may not be a spam storm. Log file shows:
 
  nsx4b3eh 20040324200108 De90392330028271a.SMD 421 0 ERROR_BAD_MATRIX 71
0
0
  2 5
  nsx4b3eh 20040324200117 De90c923a00284b5b.SMD 422 0 ERROR_BAD_MATRIX 71
0
0
 
  What is a Bad Matrix?
 
 
  Sheldon
 
 
  Sheldon Koehler, Owner/Partnerhttp://www.tenforward.com
  Ten Forward Communications   360-457-9023
  Nationwide access, neighborhood support!
 
  Whenever you find yourself on the side of the majority, it's time
  to pause and reflect. Mark Twain
 
 
 
  This E-Mail came from the Message Sniffer mailing list. For information
and
  (un)subscription instructions go to
  http://www.sortmonster.com/MessageSniffer/Help/Help.html
 

 --
-
  This message and any included attachments are from Siemens Medical
Solutions
  USA, Inc. and are intended only for the addressee(s).
  The information contained herein may include trade secrets or privileged
or
  otherwise confidential information.  Unauthorized review, forwarding,
printing,
  copying, distributing, or using such information is strictly prohibited
and may
  be unlawful.  If you received this message in error, or have reason to
believe
  you are not authorized to receive it, please promptly delete this
message
and
  notify the sender by e-mail with a copy to
[EMAIL PROTECTED]
 
  Thank you
 
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RE: [sniffer] Call for beta testers... snfrv2r3b1

2004-03-25 Thread Pete McNeil
I think the problem is in the file extension.
It should not be .com, but rather .cmd.
Hope this helps,
_M
At 12:32 PM 3/25/2004, you wrote:
Hi,

When I try to run the .com file, I get an error.  I have attached the
error dialog box and a copy of the .com file (name altered to .co_) that
I am using.  Can you see what I am doing wrong?  The program seems to be
running OK in normal mode.
Thanks,
Bill Morgan
 -Original Message-
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of Pete McNeil
 Sent: Wednesday, March 17, 2004 1:05 PM
 To: [EMAIL PROTECTED]
 Subject: [sniffer] Call for beta testers... snfrv2r3b1


 Hello folks,

 I know folks are anxious to get their hands on this version
 so I'm going to
 play this beta round a little looser than usual. Version
 2-3b1 implements a
 persistent mode feature for our cellular peer-server
 technology. Launching
 a persistent instance of Message Sniffer has the effect of creating a
 daemon so that all other instances will elect to be clients.
 We observed a
 DRAMATIC improvement in system performance on our
 NT4/Imail/Declude test bed.

 In static tests on my Toshiba 6100 we saw no memory leaks and
 consistent
 performance over the past 18+ hours of testing. This included
 several tests
 with more than 100+ concurrent client instances - all without
 failure and
 without making the system unresponsive (though the WinXP file
 system did
 start to show signs of strain).

 This beta is for the windows platform only... once we're
 happy with this
 version will will make the source and *nix versions available
 as always.

 Windows platform users who are interested in testing the new
 beta should
 download the following file:

http://www.sortmonster.com/MessageSniffer/Betas/snfrv2r3b1.zip
The file contains an executable and a short readme file.

We are going to be extremely busy for the next few hours so we won't be
able to provide support on this until later this evening. We have many
updates and rulebase mods to attend to at the moment since we shifted
resources heavily toward development last evening and through the
night...
The current spam storm continues to rage with more than 500 core
rule-base
changes yesterday alone!
Be careful.
Backup your current production version.
Watch carefully.
Enjoy :-)

_M

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Re: [sniffer] Help

2004-03-25 Thread Pete McNeil


MicroNeil Voice Line: 703-779-4909
_M
At 01:30 PM 3/25/2004, you wrote:
I got
it.I am on to something so I might figure it outif I dont is
there a number I can call..

Richard Farris
Ethixs Online
1.270.247. Office
1.800.548.3877 Tech Support


- Original Message - 

From: Matt 

To:
[EMAIL PROTECTED] 

Sent: Thursday, March 25, 2004 11:27 AM

Subject: Re: [sniffer] Help

Have you tried a reboot? Checked your error logs? Made sure that DNS and all of your E-mail services are running?

Is there even a chance that you will be able to receive this message?

Matt


Richard Farris wrote:


I just did an Windows NT update and now I cant get any email...when I turn

sniffer off I at least can send mail to myself but still cant get from

outside..any ideas.,


Richard Farris

Ethixs Online

1.270.247. Office

1.800.548.3877 Tech Support


- Original Message - 

From: Pete McNeil [EMAIL PROTECTED]

To: [EMAIL PROTECTED]

Sent: Wednesday, March 24, 2004 2:01 PM

Subject: Re: [sniffer] Possible Bad Rule?



 

We had a badly coded rule that matched yahoo.

The rule has been removed.

About 30 rulebases went out before it was caught.

These are being recompiled with the correction right now.

I will see if I can push yours to the top.


_M


At 02:02 PM 3/24/2004, you wrote:

 

I am getting a lot of complaints today from Yahoo users...


Sheldon



- Original Message -

From: Darrell LaRock [EMAIL PROTECTED]

To: [EMAIL PROTECTED]

Cc: 'SnifferSupport' [EMAIL PROTECTED]

Sent: Wednesday, March 24, 2004 10:33 AM

Subject: [sniffer] Possible Bad Rule?



 

Pete,




I am seeing a ton of false positives for RULE 100543. I sent a few in

 

to

 

you to check out ([EMAIL PROTECTED]). I wanted to post this here as well

 

since it

 

seems to take approx. 24 hours to process false positives.




Darrell











 

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and (un)subscription instructions go to

http://www.sortmonster.com/MessageSniffer/Help/Help.html

 

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and (un)subscription instructions go to

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Re: [sniffer] Error_Bad_Matrix

2004-03-25 Thread Pete McNeil
I've been looking at that. The problem seems to be related to downloads, 
not generation. That is, every rulebase that I use locally has been clean 
throughout this episode. Also, folks who manually download the rulebase 
seem to be able to correct the problem. I'm not sure yet what is different 
between automated and manual downloads - except perhaps wget. I also don't 
have any obvious changes on our system recently. I continue to dig.

_M

At 03:39 PM 3/25/2004, you wrote:
Pete,

I decided to look in my log files for the past several days because of 
number of Error_Bad_Matrix related messages. I can't find this message in 
any of my log files until today starting with the update I auto downloaded 
at 8:15 this morning, and went until the update at noon. While I was look 
at the log file, another update notice came, so an update was done and the 
Error_Bad_Matrix message is back.

I am using the latest production version of sniffer.

I know you are probably working on this, but I thought you should know for 
sure that your process for building the rulebase is experiencing some 
major issues.

All times are -0600 GMT.

   -Original Message-
   From: Butch Andrews  [mailto:[EMAIL PROTECTED]
   Sent: Thursday, March 25, 2004 10:23  AM
   To: [EMAIL PROTECTED]
   Subject: [sniffer]  Error_Bad_Matrix
 
   I am seeing my log file continue to fill with  Error_Bad_Matrix errors
   and sniffer failing since a lot of spam is  getting through. I was
   running the beta but have gone back to the original  version just now. I
   did amanual update when the program change had no effect  and it's back
   up. I checked last nights log and the problem started with date  code
   20040325083243 and continued until now. This is for your info since 
I was
   using the beta.
 
   -Butch

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RE: [sniffer] Error_Bad_Matrix

2004-03-25 Thread Pete McNeil
snf2check.exe will catch a partial download but it will not catch 
corruption in the middle of the file.

_M

At 03:57 PM 3/25/2004, you wrote:

I run snf2check.exe against every .snf file downloaded.  I just checked it
again manually, and no errors were reported.  I now have almost 3500
Error_Bad_Matrix entries in today's log.
Bill

-Original Message-
From: Vivek Khera [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 25, 2004 12:52 PM
To: [EMAIL PROTECTED]
Subject: Re: [sniffer] Error_Bad_Matrix


On Mar 25, 2004, at 3:39 PM, Paul Lushinsky wrote:

 I decided to look in my log files for the past several days because of
 number of Error_Bad_Matrix related messages. I can't find this message
 in any of my log files until today starting with the update I auto
 downloaded at 8:15 this morning, and went until the update at noon.
 While I was look at the log file, another update notice came, so an
 update was done and the Error_Bad_Matrix message is back.

I'm curious if the people who are seeing these messages are running
snf2check.exe before making the rule files live.  I do so, and have not
seen a single instance of this error.
Can you run snf2check.exe on the current bad matrix you have and see if
it reports an error?
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http://www.sortmonster.com/MessageSniffer/Help/Help.html
---
This message and any included attachments are from Siemens Medical Solutions
USA, Inc. and are intended only for the addressee(s).
The information contained herein may include trade secrets or privileged or
otherwise confidential information.  Unauthorized review, forwarding, 
printing,
copying, distributing, or using such information is strictly prohibited 
and may
be unlawful.  If you received this message in error, or have reason to 
believe
you are not authorized to receive it, please promptly delete this message and
notify the sender by e-mail with a copy to 
[EMAIL PROTECTED]

Thank you

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Re: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
By 8pm we had done at least 6 that I was part of.
_M
At 04:32 PM 3/25/2004, you wrote:
How many updates have happened today...I have only received 1 today..

Richard Farris
Ethixs Online
1.270.247. Office
1.800.548.3877 Tech Support
- Original Message -
From: Pete McNeil [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 25, 2004 2:52 PM
Subject: Re: [sniffer] Spam storm?
 Big uptick of new and broken spam.
 Half way through the day and already at 445 new rules.
 We may be getting it under control though... (fingers crossed).
 _M

 At 06:02 PM 3/24/2004, you wrote:
 Am I the only one seeing a spam storm today? This is the worst I have
EVER
 seen!!!
 
 Sheldon
 
 
 Sheldon Koehler, Owner/Partnerhttp://www.tenforward.com
 Ten Forward Communications   360-457-9023
 Nationwide access, neighborhood support!
 
 Whenever you find yourself on the side of the majority, it's time
 to pause and reflect. Mark Twain
 
 
 
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Re: [sniffer] Error_Bad_Matrix

2004-03-25 Thread Matt
Pete,

FYI, I was trying to set up log uploads yesterday night and it took me a 
while to figure out that the FTP connection was unreliable from my 
server.  Packets were being dropped/munged somewhere.  I also noted a 
much lower hit rate on SNIFFER-PHARMACY yesterday, but no indication of 
matrix problems in the logs today (yesterday's were deleted).

Every once in a while my colocator's border router goes on the fritz and 
starts dropping packets.  A reboot usually fixes that issue.

If your router checks out fine, you might want to take a look at the 
routes going from your server to the customers that have indicated a 
problem and those that have indicated that there is none, that might 
identify something not so obvious if you run out of ideas.

I know how these things go and the worst part is not knowing the source 
while others expect an quick fix.  No big deal on my end in the mean 
time though.

Matt



Pete McNeil wrote:

snf2check.exe will catch a partial download but it will not catch 
corruption in the middle of the file.

_M

At 03:57 PM 3/25/2004, you wrote:

I run snf2check.exe against every .snf file downloaded.  I just 
checked it
again manually, and no errors were reported.  I now have almost 3500
Error_Bad_Matrix entries in today's log.

Bill

-Original Message-
From: Vivek Khera [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 25, 2004 12:52 PM
To: [EMAIL PROTECTED]
Subject: Re: [sniffer] Error_Bad_Matrix


On Mar 25, 2004, at 3:39 PM, Paul Lushinsky wrote:

 I decided to look in my log files for the past several days because of
 number of Error_Bad_Matrix related messages. I can't find this message
 in any of my log files until today starting with the update I auto
 downloaded at 8:15 this morning, and went until the update at noon.
 While I was look at the log file, another update notice came, so an
 update was done and the Error_Bad_Matrix message is back.

I'm curious if the people who are seeing these messages are running
snf2check.exe before making the rule files live.  I do so, and have not
seen a single instance of this error.
Can you run snf2check.exe on the current bad matrix you have and see if
it reports an error?
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Re: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
I'm exploring that possibility - though there is nothing in the logs. I've 
seen some instability on the Sprint T1 though it seems stable now.

Sprint made an announcement that they were going to change their routing 
and that seems to coincide with these new events. Perhaps instability on 
that part of the network is causing some ftp/wget downloads to become 
corrupted - though that's not supposed to happen.

I've bounced the server just in case something was hung up there that I 
couldn't see - although some folks are not having trouble so there is 
nothing conclusive at this time.

_M

At 06:19 PM 3/25/2004, you wrote:
Could it possibly be your FTP server. This morning it timed out 4 times
when trying to manually download using my SecureFX program while this
afternoon wget has had no problem. Maybe your getting hammered maliciously
with outside requests.
-Butch

*** REPLY SEPARATOR  ***

On 3/25/2004 at 6:05 PM Pete McNeil wrote:

This helps narrow things down. Specifically we know that the rulebase
files
are not corrupted on the server but during the download. That explains why
I haven't been able to recreate a problem in the lab.

I have a suspicion that wget may be failing intermittently.
Another customer recently had unexplainable, intermittent issues with
wget.
They replaced wget with code of their own and have had no further
problems.

Can we narrow this down to wget under heavy traffic conditions perhaps?

_M


At 10:08 PM 3/24/2004, you wrote:
I've noticed that if I do a manual download of the rule base file, it
works
well, but if it is downloaded automatically via the Windows Task CMD,
then
sniffer fails and the log fills up with the BAD_MATRIX errors.

Anyone else seeing this?


Mike


- Original Message -
From: Landry William [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Wednesday, March 24, 2004 8:43 PM
Subject: RE: [sniffer] Spam storm?


 
  I see over a 1000 of these ERROR_BAD_MATRIX entries in my Sniffer log
file
  today, as well.  Is this due to the ruleset issue from earlier today?
 
  Bill
 
  -Original Message-
  From: Sheldon Koehler [mailto:[EMAIL PROTECTED]
  Sent: Wednesday, March 24, 2004 3:19 PM
  To: [EMAIL PROTECTED]
  Subject: Re: [sniffer] Spam storm?
 
 
  Well it may not be a spam storm. Log file shows:
 
  nsx4b3eh 20040324200108 De90392330028271a.SMD 421 0 ERROR_BAD_MATRIX
71 0
0
  2 5
  nsx4b3eh 20040324200117 De90c923a00284b5b.SMD 422 0 ERROR_BAD_MATRIX
71 0
0
 
  What is a Bad Matrix?
 
 
  Sheldon
 
 
  Sheldon Koehler, Owner/Partnerhttp://www.tenforward.com
  Ten Forward Communications   360-457-9023
  Nationwide access, neighborhood support!
 
  Whenever you find yourself on the side of the majority, it's time
  to pause and reflect. Mark Twain
 
 
 
  This E-Mail came from the Message Sniffer mailing list. For
information
and
  (un)subscription instructions go to
  http://www.sortmonster.com/MessageSniffer/Help/Help.html
 
 
--
-
  This message and any included attachments are from Siemens Medical
Solutions
  USA, Inc. and are intended only for the addressee(s).
  The information contained herein may include trade secrets or
privileged
or
  otherwise confidential information.  Unauthorized review, forwarding,
printing,
  copying, distributing, or using such information is strictly
prohibited
and may
  be unlawful.  If you received this message in error, or have reason to
believe
  you are not authorized to receive it, please promptly delete this
message
and
  notify the sender by e-mail with a copy to
[EMAIL PROTECTED]
 
  Thank you
 
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RE: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
At 06:25 PM 3/25/2004, you wrote:
We also saw many BAD_MATRIX errors last night.

If the problem was 'wget', shouldn't the snf2check
utility detect a corrupt file? Also, we did a manual
update yesterday afternoon and there were no 'wget'
error messages. The problem got corrected sometime
between last night and this morning.
Perhaps though some have had trouble throughout the day.

At the very least the verification on snf2check should
be improved to catch this issue. Updating with a bad
ruleset creates many problems.
Agreed. I'm looking for some simple ways to do that without changing the 
rulebase file format. There aren't any simple mechanisms that come to mind. 
Perhaps there will be no choice but to change the format in order to 
prevent this possibility.

_M


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Pete McNeil
Sent: Thursday, March 25, 2004 7:06 PM
To: [EMAIL PROTECTED]
Subject: Re: [sniffer] Spam storm?
This helps narrow things down. Specifically we know that the rulebase files
are not corrupted on the server but during the download. That explains why
I haven't been able to recreate a problem in the lab.
I have a suspicion that wget may be failing intermittently.
Another customer recently had unexplainable, intermittent issues with wget.
They replaced wget with code of their own and have had no further problems.
Can we narrow this down to wget under heavy traffic conditions perhaps?

_M

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Re: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
snf2check.exe makes the assumption that if the entire file is there and the 
head and tail of it can be verified that it must have survived the 
transfer. Clearly something is happening where that is not the case - 
something new.

One possibility that has been suggested is that we could gzip these files. 
That would be a somewhat radical change - but so would any change to the 
file format so this may be the best option.

On the other hand the system has worked as is for quite some time. I would 
like to discover what has changed as that clearly represents a problem that 
must be corrected.

_M

At 06:35 PM 3/25/2004, you wrote:
If that were the case then there is something wrong with either
snf2check.exe and/or autosnf.cmd. The autosnf.cmd calls snf2check.exe to
validate the downloaded file. If snf2check.exe found the downloaded file
invalid, an error is suppose to be returned to keep it from going into
production.  So if I assume the file does get corrupted during the download,
snf2check.exe must not be returning the correct value to indicate the file
is bad, snf2check.exe hasn't changed in a long time.
So while I can't argue that the file is bad before or after download. I will
try to watch the logs more closely and manually test the snf files that
begin to generate bad_matrix errors to see if their bad at that time.
-Original Message-
From: Pete McNeil [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Date: Thu, 25 Mar 2004 18:05:39 -0500
Subject: Re: [sniffer] Spam storm?
 This helps narrow things down. Specifically we know that the rulebase
 files
 are not corrupted on the server but during the download. That explains
 why
 I haven't been able to recreate a problem in the lab.

 I have a suspicion that wget may be failing intermittently.
 Another customer recently had unexplainable, intermittent issues with
 wget.
 They replaced wget with code of their own and have had no further
 problems.

 Can we narrow this down to wget under heavy traffic conditions perhaps?

 _M


 At 10:08 PM 3/24/2004, you wrote:
 I've noticed that if I do a manual download of the rule base file, it
 works
 well, but if it is downloaded automatically via the Windows Task CMD,
 then
 sniffer fails and the log fills up with the BAD_MATRIX errors.
 
 Anyone else seeing this?
 
 
 Mike
 
 
 - Original Message -
 From: Landry William [EMAIL PROTECTED]
 To: [EMAIL PROTECTED]
 Sent: Wednesday, March 24, 2004 8:43 PM
 Subject: RE: [sniffer] Spam storm?
 
 
  
   I see over a 1000 of these ERROR_BAD_MATRIX entries in my Sniffer
 log file
   today, as well.  Is this due to the ruleset issue from earlier
 today?
  
   Bill
  
   -Original Message-
   From: Sheldon Koehler [mailto:[EMAIL PROTECTED]
   Sent: Wednesday, March 24, 2004 3:19 PM
   To: [EMAIL PROTECTED]
   Subject: Re: [sniffer] Spam storm?
  
  
   Well it may not be a spam storm. Log file shows:
  
   nsx4b3eh 20040324200108 De90392330028271a.SMD 421 0
 ERROR_BAD_MATRIX 71 0
 0
   2 5
   nsx4b3eh 20040324200117 De90c923a00284b5b.SMD 422 0
 ERROR_BAD_MATRIX 71 0
 0
  
   What is a Bad Matrix?
  
  
   Sheldon
  
  
   Sheldon Koehler, Owner/Partnerhttp://www.tenforward.com
   Ten Forward Communications   360-457-9023
   Nationwide access, neighborhood support!
  
   Whenever you find yourself on the side of the majority, it's time
   to pause and reflect. Mark Twain
  
  
  
   This E-Mail came from the Message Sniffer mailing list. For
 information
 and
   (un)subscription instructions go to
   http://www.sortmonster.com/MessageSniffer/Help/Help.html
  
  
 ---
 ---
 -
   This message and any included attachments are from Siemens Medical
 Solutions
   USA, Inc. and are intended only for the addressee(s).
   The information contained herein may include trade secrets or
 privileged
 or
   otherwise confidential information.  Unauthorized review,
 forwarding,
 printing,
   copying, distributing, or using such information is strictly
 prohibited
 and may
   be unlawful.  If you received this message in error, or have reason
 to
 believe
   you are not authorized to receive it, please promptly delete this
 message
 and
   notify the sender by e-mail with a copy to
 [EMAIL PROTECTED]
  
   Thank you
  
   This E-Mail came from the Message Sniffer mailing list. For
 information
 and (un)subscription instructions go to
 http://www.sortmonster.com/MessageSniffer/Help/Help.html
  
 
 
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RE: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
At 06:51 PM 3/25/2004, you wrote:

Looks like a bandwidth issue to me, since even doing the download manually,
my connection stalled 5 times before I could complete a successful download.
And the download speeds were atrocious, many times in bytes/second rather
than even kb/second - and my connection speeds to the Internet are in
multiple 100mb connections.
Have you considered mirror sites or adding bandwidth?
Normally our bandwidth is sufficient. We have considered mirror sites also, 
and we have plans to move our hosting into a local Equinix facility where 
we will have similar bandwidth to yours and other benefits. Unfortunately 
we are not quite up to that level of revenue yet.

We currently have two T1s through two networks (Savvis  Sprint). More than 
90% of the time more than 80% of our bandwidth is avaialable. There are 
occasional short-lived peaks where this is not the case, but those are rare.

Rulebase compilation is metered so that each file is generated in about the 
same amount of time it takes to download the file through a single T1. 
Generally this pacing leaves our bandwidth mostly open most of the time.

However, it appears that something odd has been going on recently with the 
Sprint side of the network - I suspect that what you've observed is related 
to some flapping going on under some heavy load conditions and that this 
has led to a number of dropped packets. I am investigating this further.

An event such as this would reduce our bandwidth by more than half and many 
packets would be lost.

_M

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Re: [sniffer] Error_Bad_Matrix

2004-03-25 Thread Pete McNeil
I'm getting to be pretty sure it's Sprint. After bouncing the router there 
have been 109 carrier transitions in 3 hours. That's insane. I will be 
pounding on them.
_M

At 11:44 PM 3/25/2004, you wrote:
Pete,

FYI, I was trying to set up log uploads yesterday night and it took me a 
while to figure out that the FTP connection was unreliable from my 
server.  Packets were being dropped/munged somewhere.  I also noted a much 
lower hit rate on SNIFFER-PHARMACY yesterday, but no indication of matrix 
problems in the logs today (yesterday's were deleted).

Every once in a while my colocator's border router goes on the fritz and 
starts dropping packets.  A reboot usually fixes that issue.

If your router checks out fine, you might want to take a look at the 
routes going from your server to the customers that have indicated a 
problem and those that have indicated that there is none, that might 
identify something not so obvious if you run out of ideas.

I know how these things go and the worst part is not knowing the source 
while others expect an quick fix.  No big deal on my end in the mean time 
though.

Matt



Pete McNeil wrote:

snf2check.exe will catch a partial download but it will not catch 
corruption in the middle of the file.

_M

At 03:57 PM 3/25/2004, you wrote:

I run snf2check.exe against every .snf file downloaded.  I just checked it
again manually, and no errors were reported.  I now have almost 3500
Error_Bad_Matrix entries in today's log.
Bill

-Original Message-
From: Vivek Khera [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 25, 2004 12:52 PM
To: [EMAIL PROTECTED]
Subject: Re: [sniffer] Error_Bad_Matrix


On Mar 25, 2004, at 3:39 PM, Paul Lushinsky wrote:

 I decided to look in my log files for the past several days because of
 number of Error_Bad_Matrix related messages. I can't find this message
 in any of my log files until today starting with the update I auto
 downloaded at 8:15 this morning, and went until the update at noon.
 While I was look at the log file, another update notice came, so an
 update was done and the Error_Bad_Matrix message is back.

I'm curious if the people who are seeing these messages are running
snf2check.exe before making the rule files live.  I do so, and have not
seen a single instance of this error.
Can you run snf2check.exe on the current bad matrix you have and see if
it reports an error?
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This message and any included attachments are from Siemens Medical Solutions
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The information contained herein may include trade secrets or privileged or
otherwise confidential information.  Unauthorized review, forwarding, 
printing,
copying, distributing, or using such information is strictly prohibited 
and may
be unlawful.  If you received this message in error, or have reason to 
believe
you are not authorized to receive it, please promptly delete this 
message and
notify the sender by e-mail with a copy to 
[EMAIL PROTECTED]

Thank you

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Re: [sniffer] Spam storm?

2004-03-25 Thread Pete McNeil
snf2check does a byte length and partial checksum by default. The first and 
last few kbytes of the file are encrypted in sequence using Mangler. If any 
single bit of those two segments is missing or altered then the file will 
fail to authenticate. The only thing missing is a CRC for the middle parts 
of the file. In theory this is covered by TCP - but in practice not so much :-(

_M

At 12:48 AM 3/26/2004, you wrote:
How about a byte length compare or checksum of some sort?

Matt



Pete McNeil wrote:

At 06:25 PM 3/25/2004, you wrote:

We also saw many BAD_MATRIX errors last night.

If the problem was 'wget', shouldn't the snf2check
utility detect a corrupt file? Also, we did a manual
update yesterday afternoon and there were no 'wget'
error messages. The problem got corrected sometime
between last night and this morning.


Perhaps though some have had trouble throughout the day.

At the very least the verification on snf2check should
be improved to catch this issue. Updating with a bad
ruleset creates many problems.


Agreed. I'm looking for some simple ways to do that without changing the 
rulebase file format. There aren't any simple mechanisms that come to 
mind. Perhaps there will be no choice but to change the format in order 
to prevent this possibility.

_M


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Pete McNeil
Sent: Thursday, March 25, 2004 7:06 PM
To: [EMAIL PROTECTED]
Subject: Re: [sniffer] Spam storm?
This helps narrow things down. Specifically we know that the rulebase files
are not corrupted on the server but during the download. That explains why
I haven't been able to recreate a problem in the lab.
I have a suspicion that wget may be failing intermittently.
Another customer recently had unexplainable, intermittent issues with wget.
They replaced wget with code of their own and have had no further problems.
Can we narrow this down to wget under heavy traffic conditions perhaps?

_M

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