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Re: 20030820: Weather2.admin.niu.edu Trouble
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- Subject: Re: 20030820: Weather2.admin.niu.edu Trouble
- Date: Wed, 20 Aug 2003 22:01:53 -0500 (CDT)
On Wed, 20 Aug 2003, Kevin W. Thomas wrote:
> Gilbert...
>
> I'm showing "winkie" now getting data. "Munchkin", our other LDM system
> still can't connect. I've talked to other people running LDM systems here
> at OU. They report the same problem.
>
> "Traceroute" still shows 131.156.168.1 as the stopping point.
Funny, because I got this message:
----- Transcript of session follows -----
451 wizard.caps.ou.edu: Name server timeout
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
[ Part 2: "Delivery Status" ]
Reporting-MTA: dns; weather.admin.niu.edu
Arrival-Date: Wed, 20 Aug 2003 16:14:05 -0500
Final-Recipient: RFC822; address@hidden
Action: delayed
Status: 4.4.3
Last-Attempt-Date: Wed, 20 Aug 2003 20:31:48 -0500
Will-Retry-Until: Mon, 25 Aug 2003 16:14:05 -0500
I'll check to see if our nameserver is messed up here. It's possible
with the worms and viruses, certainly.
*******************************************************************************
Gilbert Sebenste ********
(My opinions only!) ******
Staff Meteorologist, Northern Illinois University ****
E-mail: address@hidden ***
web: http://weather.admin.niu.edu **
Work phone: 815-753-5492 *
*******************************************************************************
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Subject: Re: 20030820: Weather2.admin.niu.edu Trouble
From: Jeff Wolfe <address@hidden>
To: address@hidden
Cc: address@hidden, address@hidden
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I missed the start of this discussion, but at least part of the problem
is likely to be the fact that gcn.ou.edu only has one nameserver:
pangaea:wolfe[50]% dig ns caps.ou.edu
; <<>> DiG 9.1.3 <<>> ns caps.ou.edu
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51925
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;caps.ou.edu. IN NS
;; ANSWER SECTION:
caps.ou.edu. 86388 IN NS hoth.gcn.ou.edu.
;; Query time: 3 msec
;; SERVER: 128.118.52.83#53(128.118.52.83)
;; WHEN: Wed Aug 20 23:40:36 2003
;; MSG SIZE rcvd: 52
I speculate that this is a Windows machine and that it's unstable, due
to the current spate of windows worms n stuff..
-JEff
On Wed, 2003-08-20 at 23:01, Gilbert Sebenste wrote:
> On Wed, 20 Aug 2003, Kevin W. Thomas wrote:
>
> > Gilbert...
> >
> > I'm showing "winkie" now getting data. "Munchkin", our other LDM system
> > still can't connect. I've talked to other people running LDM systems here
> > at OU. They report the same problem.
> >
> > "Traceroute" still shows 131.156.168.1 as the stopping point.
>
> Funny, because I got this message:
>
> ----- Transcript of session follows -----
> 451 wizard.caps.ou.edu: Name server timeout
> Warning: message still undelivered after 4 hours
> Will keep trying until message is 5 days old
>
> [ Part 2: "Delivery Status" ]
>
> Reporting-MTA: dns; weather.admin.niu.edu
> Arrival-Date: Wed, 20 Aug 2003 16:14:05 -0500
>
> Final-Recipient: RFC822; address@hidden
> Action: delayed
> Status: 4.4.3
> Last-Attempt-Date: Wed, 20 Aug 2003 20:31:48 -0500
> Will-Retry-Until: Mon, 25 Aug 2003 16:14:05 -0500
>
>
> I'll check to see if our nameserver is messed up here. It's possible
> with the worms and viruses, certainly.
>
> *******************************************************************************
> Gilbert Sebenste ********
> (My opinions only!) ******
> Staff Meteorologist, Northern Illinois University ****
> E-mail: address@hidden ***
> web: http://weather.admin.niu.edu **
> Work phone: 815-753-5492 *
> *******************************************************************************
>
From address@hidden Wed Aug 20 22:12:41 2003
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Wed, 20 Aug 2003 23:12:39 -0500
Date: Wed, 20 Aug 2003 23:12:39 -0500 (CDT)
From: "David B. Bukowski" <address@hidden>
To: Gilbert Sebenste <address@hidden>
cc: "Kevin W. Thomas" <address@hidden>, address@hidden
Subject: Re: 20030820: Weather2.admin.niu.edu Trouble
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yep sounds like the nameserver from NIU isn't getting updates from
ou.edu's name server at all
and the cache'd time has run out. so thta seems to be the problem
-dave
On Wed, 20 Aug 2003, Gilbert Sebenste wrote:
On Wed, 20 Aug 2003, Kevin W. Thomas wrote:
> Gilbert...
>
> I'm showing "winkie" now getting data. "Munchkin", our other LDM system
> still can't connect. I've talked to other people running LDM systems here
> at OU. They report the same problem.
>
> "Traceroute" still shows 131.156.168.1 as the stopping point.
Funny, because I got this message:
----- Transcript of session follows -----
451 wizard.caps.ou.edu: Name server timeout
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
[ Part 2: "Delivery Status" ]
Reporting-MTA: dns; weather.admin.niu.edu
Arrival-Date: Wed, 20 Aug 2003 16:14:05 -0500
Final-Recipient: RFC822; address@hidden
Action: delayed
Status: 4.4.3
Last-Attempt-Date: Wed, 20 Aug 2003 20:31:48 -0500
Will-Retry-Until: Mon, 25 Aug 2003 16:14:05 -0500
I'll check to see if our nameserver is messed up here. It's possible
with the worms and viruses, certainly.
*******************************************************************************
Gilbert Sebenste ********
(My opinions only!) ******
Staff Meteorologist, Northern Illinois University ****
E-mail: address@hidden ***
web: http://weather.admin.niu.edu **
Work phone: 815-753-5492 *
*******************************************************************************
-------------------------------------------------------------------------------
David B. Bukowski |email (work): address@hidden
Network Analyst III |email (personal): address@hidden
College of Dupage |webpage: http://www.cshschess.org/davebb/
Glen Ellyn, Illinois |pager: (708) 241-7655
http://www.cod.edu/ |work phone: (630) 942-2591
-------------------------------------------------------------------------------
From address@hidden Wed Aug 20 22:17:14 2003
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Wed, 20 Aug 2003 23:07:50 -0500 (CDT)
Date: Wed, 20 Aug 2003 23:07:50 -0500 (CDT)
From: "Kevin W. Thomas" <address@hidden>
Message-Id: <address@hidden>
To: address@hidden, address@hidden
Subject: Re: 20030820: Weather2.admin.niu.edu Trouble
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>I missed the start of this discussion, but at least part of the problem
>is likely to be the fact that gcn.ou.edu only has one nameserver:
>
>pangaea:wolfe[50]% dig ns caps.ou.edu
>
>
>; <<>> DiG 9.1.3 <<>> ns caps.ou.edu
>;; global options: printcmd
>;; Got answer:
>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51925
>;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
>
>;; QUESTION SECTION:
>;caps.ou.edu. IN NS
>
>;; ANSWER SECTION:
>caps.ou.edu. 86388 IN NS hoth.gcn.ou.edu.
>
>;; Query time: 3 msec
>;; SERVER: 128.118.52.83#53(128.118.52.83)
>;; WHEN: Wed Aug 20 23:40:36 2003
>;; MSG SIZE rcvd: 52
>
>
>I speculate that this is a Windows machine and that it's unstable, due
>to the current spate of windows worms n stuff..
>
>-JEff
Jeff...
You haven't looked far enough. HOTH serves the College of Geosciences. If
you wish to see the OU nameservers, you need to look up "ou.edu".
I do notice that HOTH is having troubles resolving some "niu.edu" names.
Instead of doing something useful, it hangs.
I can't tell you what OS it is running, as I don't have an account on the
computer, however, I'd guess that it is Linux.
My workstation (wizard.caps.ou.edu) uses a different OU nameserver that isn't
having any trouble resolving names. I'm unable to reach many NIU web pages,
and I can't connect to the NIU mail server to send Gilbert email. From a
posting to the LDM list, I see that Gilbert has the same problem and same
errors when he tries to send to me.
Based on my LDM logs, the problem is BEFORE the current virus going around
the world, though it may not be before last week's virus.
Kevin W. Thomas
Center for Analysis and Prediction of Storms
University of Oklahoma
Norman, Oklahoma
Email: address@hidden
>On Wed, 2003-08-20 at 23:01, Gilbert Sebenste wrote:
>> On Wed, 20 Aug 2003, Kevin W. Thomas wrote:
>>
>> > Gilbert...
>> >
>> > I'm showing "winkie" now getting data. "Munchkin", our other LDM system
>> > still can't connect. I've talked to other people running LDM systems here
>> > at OU. They report the same problem.
>> >
>> > "Traceroute" still shows 131.156.168.1 as the stopping point.
>>
>> Funny, because I got this message:
>>
>> ----- Transcript of session follows -----
>> 451 wizard.caps.ou.edu: Name server timeout
>> Warning: message still undelivered after 4 hours
>> Will keep trying until message is 5 days old
>>
>> [ Part 2: "Delivery Status" ]
>>
>> Reporting-MTA: dns; weather.admin.niu.edu
>> Arrival-Date: Wed, 20 Aug 2003 16:14:05 -0500
>>
>> Final-Recipient: RFC822; address@hidden
>> Action: delayed
>> Status: 4.4.3
>> Last-Attempt-Date: Wed, 20 Aug 2003 20:31:48 -0500
>> Will-Retry-Until: Mon, 25 Aug 2003 16:14:05 -0500
>>
>>
>> I'll check to see if our nameserver is messed up here. It's possible
>> with the worms and viruses, certainly.
>>
>> *******************************************************************************
>> Gilbert Sebenste ********
>> (My opinions only!) ******
>> Staff Meteorologist, Northern Illinois University ****
>> E-mail: address@hidden ***
>> web: http://weather.admin.niu.edu **
>> Work phone: 815-753-5492 *
>> *******************************************************************************
>>
>
>
From address@hidden Wed Aug 20 22:51:46 2003
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Subject: Re: 20030820: Weather2.admin.niu.edu Trouble
From: Jeff Wolfe <address@hidden>
To: "Kevin W. Thomas" <address@hidden>
Cc: address@hidden, address@hidden
In-Reply-To: <address@hidden>
References: <address@hidden>
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On Thu, 2003-08-21 at 00:07, Kevin W. Thomas wrote:
> >I missed the start of this discussion, but at least part of the problem
> >is likely to be the fact that gcn.ou.edu only has one nameserver:
> >
> >pangaea:wolfe[50]% dig ns caps.ou.edu
> >
> >
> >; <<>> DiG 9.1.3 <<>> ns caps.ou.edu
> >;; global options: printcmd
> >;; Got answer:
> >;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51925
> >;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
> >
> >;; QUESTION SECTION:
> >;caps.ou.edu. IN NS
> >
> >;; ANSWER SECTION:
> >caps.ou.edu. 86388 IN NS hoth.gcn.ou.edu.
> >
> >;; Query time: 3 msec
> >;; SERVER: 128.118.52.83#53(128.118.52.83)
> >;; WHEN: Wed Aug 20 23:40:36 2003
> >;; MSG SIZE rcvd: 52
> >
> >
> >I speculate that this is a Windows machine and that it's unstable, due
> >to the current spate of windows worms n stuff..
> >
> >-JEff
>
> Jeff...
>
> You haven't looked far enough. HOTH serves the College of Geosciences. If
> you wish to see the OU nameservers, you need to look up "ou.edu".
Actually, according to DNS delegations, hoth.gcn.ou.edu is the sole
nameserver that is delegated authority for both caps.ou.edu and
192.15.129.in-addr.arpa, which means that any attempt to resolve
wizard.caps.ou.edu or 129.15.192.252 will involve contacting hoth for
resolution, no matter how the resolver client is configured.
Forgetting about the OS hoth runs for a second, having only one
nameserver is bad network design and against RFC requirements, since the
failure or unavailability of that one machine can cause all sorts of
problems for protocols that rely on DNS.
> I do notice that HOTH is having troubles resolving some "niu.edu" names.
> Instead of doing something useful, it hangs.
Because hoth is the only authoritative nameserver for the forward and
reverse of your zones, that might explain why Gilbert's systems can't
resolve your site to send mail. Also, if the nameserver is timing out
local DNS queries, it's also likely to be timing out remote queries.
> I can't tell you what OS it is running, as I don't have an account on the
> computer, however, I'd guess that it is Linux.
Well since it's running Postfix, I'd agree that it's definitely not windows.
> My workstation (wizard.caps.ou.edu) uses a different OU nameserver that isn't
> having any trouble resolving names. I'm unable to reach many NIU web pages,
> and I can't connect to the NIU mail server to send Gilbert email. From a
> posting to the LDM list, I see that Gilbert has the same problem and same
> errors when he tries to send to me.
> Based on my LDM logs, the problem is BEFORE the current virus going around
> the world, though it may not be before last week's virus.
Maybe the DNS issue is a red herring, but I'd still be concerned about
only having one authoritative DNS server for your domains.
$0.02
-JEff
From address@hidden Wed Aug 20 23:25:47 2003
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Date: Thu, 21 Aug 2003 00:16:23 -0500 (CDT)
From: "Kevin W. Thomas" <address@hidden>
Message-Id: <address@hidden>
To: address@hidden
Subject: Re: 20030820: Weather2.admin.niu.edu Trouble
Cc: address@hidden, address@hidden
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>On Thu, 2003-08-21 at 00:07, Kevin W. Thomas wrote:
>> >I missed the start of this discussion, but at least part of the problem
>> >is likely to be the fact that gcn.ou.edu only has one nameserver:
>> >
>> >pangaea:wolfe[50]% dig ns caps.ou.edu
>> >
>> >
>> >; <<>> DiG 9.1.3 <<>> ns caps.ou.edu
>> >;; global options: printcmd
>> >;; Got answer:
>> >;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51925
>> >;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
>> >
>> >;; QUESTION SECTION:
>> >;caps.ou.edu. IN NS
>> >
>> >;; ANSWER SECTION:
>> >caps.ou.edu. 86388 IN NS hoth.gcn.ou.edu.
>> >
>> >;; Query time: 3 msec
>> >;; SERVER: 128.118.52.83#53(128.118.52.83)
>> >;; WHEN: Wed Aug 20 23:40:36 2003
>> >;; MSG SIZE rcvd: 52
>> >
>> >
>> >I speculate that this is a Windows machine and that it's unstable, due
>> >to the current spate of windows worms n stuff..
>> >
>> >-JEff
>>
>> Jeff...
>>
>> You haven't looked far enough. HOTH serves the College of Geosciences. If
>> you wish to see the OU nameservers, you need to look up "ou.edu".
>
>
>Actually, according to DNS delegations, hoth.gcn.ou.edu is the sole
>nameserver that is delegated authority for both caps.ou.edu and
>192.15.129.in-addr.arpa, which means that any attempt to resolve
>wizard.caps.ou.edu or 129.15.192.252 will involve contacting hoth for
>resolution, no matter how the resolver client is configured.
I checked, and you are right. I would have that ZOO (zoo.backbone.ou.edu)
would know about GCN systems. Apparently, it doesn't, though it does
load in the data, at least until the data expires. I've had ZOO work fine
for me when HOTH was down.
>Forgetting about the OS hoth runs for a second, having only one
>nameserver is bad network design and against RFC requirements, since the
>failure or unavailability of that one machine can cause all sorts of
>problems for protocols that rely on DNS.
I don't like single points of failure either. I'll pester GCN admins
tomorrow.
>> I do notice that HOTH is having troubles resolving some "niu.edu" names.
>> Instead of doing something useful, it hangs.
>
>Because hoth is the only authoritative nameserver for the forward and
>reverse of your zones, that might explain why Gilbert's systems can't
>resolve your site to send mail. Also, if the nameserver is timing out
>local DNS queries, it's also likely to be timing out remote queries.
I think something else is going on. As you said, you missed the beginning.
The problem is that many machines can't reach "weather2.admin.niu.edu", or
as I later found. This includes two identically configured machines. One
can reach fine. One can't.
I can't reach Gilbert's web page from my computer. I *can* reach www.niu.edu.
When I try to reach web pages of the various departments, some work, but
many don't.
>> I can't tell you what OS it is running, as I don't have an account on the
>> computer, however, I'd guess that it is Linux.
>
>Well since it's running Postfix, I'd agree that it's definitely not windows.
>
>> My workstation (wizard.caps.ou.edu) uses a different OU nameserver that isn't
>> having any trouble resolving names. I'm unable to reach many NIU web pages,
>> and I can't connect to the NIU mail server to send Gilbert email. From a
>> posting to the LDM list, I see that Gilbert has the same problem and same
>> errors when he tries to send to me.
>
>
>
>> Based on my LDM logs, the problem is BEFORE the current virus going around
>> the world, though it may not be before last week's virus.
>
>
>Maybe the DNS issue is a red herring, but I'd still be concerned about
>only having one authoritative DNS server for your domains.
>
>$0.02
>
>-JEff
Kevin W. Thomas
Center for Analysis and Prediction of Storms
University of Oklahoma
Norman, Oklahoma
Email: address@hidden
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