help needed filing a bug

News and discussion about development of the Debian OS itself

help needed filing a bug

Postby samething22 » 2007-03-03 20:45

I need a linux expert to help me determine which Debian package to file a bug against. This problem beats the hell out of me.

Here is the problem: There are some web sites from which etch cannot get an HTTP response (even though almost every other OS can get a response).

Here is one such site:
http://www.ureg.ohio-state.edu/ourweb/online.html
(This is a website for a major public US university, and the site is used by tens of thousands of students.)

If you try to get to it using Windows XP or Ubuntu 6.06 or Debian sarge, it works fine. If you try with etch, you receive no response. To be more specific, the HTTP client resolves the host, establishes a connection, and sends an HTTP request, but then receives no response. Clients on other OSs receive the response "HTTP/1.1 200 OK".

This is not a browser problem. It is the same whether you use Iceweasel, Opera, Epiphany, lynx, or even wget.

Also, it is not a DNS problem because the etch machines can ping the server just fine.

I really need to figure out which package is causing the problem.

I filed bug #412940 in 'general', but I don't think anyone will pay attention to it unless I can file the bug against a particular package.

Please help!
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

follow-up

Postby samething22 » 2007-03-03 20:50

By the way, this bug is pretty new. I think it started some time in February. I think some update to etch must have created it.

Anyway, here is a list of packages I upgraded during the relevant time period. (This list comes from /var/log/dpkg.log. I have included only the packages that I think could possibly have caused the problem.)

2007-02-08 00:15:15 upgrade bsdutils 1:2.12r-15 1:2.12r-16
2007-02-08 00:15:25 upgrade libc6-amd64 2.3.6.ds1-8 2.3.6.ds1-10
2007-02-08 00:15:27 upgrade libc6-dev 2.3.6.ds1-8 2.3.6.ds1-10
2007-02-08 00:15:27 upgrade libc6 2.3.6.ds1-8 2.3.6.ds1-10
2007-02-08 00:15:37 upgrade sysvinit 2.86.ds1-36 2.86.ds1-38
2007-02-08 00:15:42 upgrade util-linux 2.12r-15 2.12r-16
2007-02-08 00:15:48 upgrade sysvinit-utils 2.86.ds1-36 2.86.ds1-38
2007-02-08 00:15:58 upgrade initscripts 2.86.ds1-36 2.86.ds1-38
2007-02-08 00:16:03 upgrade sysv-rc 2.86.ds1-36 2.86.ds1-38
2007-02-08 00:16:08 upgrade netbase 4.28 4.29
2007-02-08 00:16:22 upgrade libnss3-0d 1.8.0.8-1 1.8.0.9-1
2007-02-15 18:56:22 upgrade libc6-amd64 2.3.6.ds1-10 2.3.6.ds1-11
2007-02-15 18:56:23 upgrade linux-kernel-headers 2.6.18-6 2.6.18-7
2007-02-15 18:56:24 upgrade libc6-dev 2.3.6.ds1-10 2.3.6.ds1-11
2007-02-15 18:56:24 upgrade libc6 2.3.6.ds1-10 2.3.6.ds1-11
2007-02-15 18:56:37 upgrade iputils-ping 3:20020927-4 3:20020927-6
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

Postby Optional » 2007-03-03 21:03

Doesn't respond at all on my Etch install or my Vista install...

Can't even telnet to port 80 on and of the 3 IPs that hostname resolves to... problem is on their end in my opinion :?

etch:~$ nmap -P0 -p 80 128.146.64.141 128.146.64.142 128.146.64.143

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-03-03 16:07 EST
Interesting ports on es-n1.ureg.ohio-state.edu (128.146.64.141):
PORT STATE SERVICE
80/tcp filtered http

Interesting ports on es-n2.ureg.ohio-state.edu (128.146.64.142):
PORT STATE SERVICE
80/tcp filtered http

Interesting ports on es-n5.ureg.ohio-state.edu (128.146.64.143):
PORT STATE SERVICE
80/tcp filtered http

Nmap finished: 3 IP addresses (3 hosts up) scanned in 12.058 seconds


I also tried scanning from my servers in Florida... 80 is filtered on all 3 IPs, problem is definitely on their end. :)
User avatar
Optional
 
Posts: 349
Joined: 2007-02-05 05:02

site is reachable for me

Postby samething22 » 2007-03-03 21:19

I'm surprised it doesn't respond to your Vista install.

I can still get the page using sarge:

Code: Select all
(sarge) $ wget http://www.ureg.ohio-state.edu/ourweb/online.html
--16:12:24--  http://www.ureg.ohio-state.edu/ourweb/online.html
           => `online.html'
Resolving www.ureg.ohio-state.edu... 128.146.64.104
Connecting to www.ureg.ohio-state.edu[128.146.64.104]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 17,686 [text/html]

100%[==============================================>] 17,686       105.96K/s

16:12:24 (105.34 KB/s) - `online.html' saved [17686/17686]


It doesn't look to me like 80 is filtered on 128.146.64.104.

Where are you getting those other IPs?
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

Postby samething22 » 2007-03-03 21:46

Hey Optional, you resolved the wrong hostname. Port 80 is not filtered on the host in question.

Code: Select all
$ nmap -p 80 www.ureg.ohio-state.edu

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-03-03 16:44 EST
Interesting ports on www.ureg.ohio-state.edu (128.146.64.104):
PORT   STATE SERVICE
80/tcp open  http

Nmap finished: 1 IP address (1 host up) scanned in 0.418 seconds
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

Postby Grifter » 2007-03-03 23:00

works fine for me, opera 9.10 etch
Eagles may soar, but weasels don't get sucked into jet engines...
Grifter
 
Posts: 1572
Joined: 2006-05-04 07:53
Location: Svea Rike

Postby samething22 » 2007-03-04 00:06

works fine for me, opera 9.10 etch


I am surprised to hear that it works for someone with etch. Do you have all updates installed? On etch I can't get it with Opera 9.01.

I started a thread about this at Linux Forums and had a poll to find out whether any etch users could get the site. No one was able to.

http://www.linuxforums.org/forum/debian ... oblem.html
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

Postby rickh » 2007-03-04 00:08

Office of the University Registrar On-Line Sevices


Works fine for me using Iceweasel on Etch (64-bit)
Debian-Lenny/Sid 32/64
Desktop: Generic Core 2 Duo, EVGA 680i, Nvidia
Laptop: Generic Intel SIS/AC97
User avatar
rickh
 
Posts: 3473
Joined: 2006-06-29 02:13
Location: Albuquerque, NM USA

hmmm....

Postby samething22 » 2007-03-04 00:27

Works fine for me using Iceweasel on Etch (64-bit)


So, my claim is this:

If you are running a fully updated x86 (i.e., 32-bit) etch system, then you cannot load the web page at the following URL:

http://www.ureg.ohio-state.edu/ourweb/online.html

If anyone is a counterexample to this, I would certainly like to know! :o

Otherwise, it seems like a bug.

(By the way, I am pretty sure that this will be a problem also for users of Ubuntu 'feisty fawn' Herd 4 on x86.)
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

Postby Optional » 2007-03-04 00:31

Oh, I forgot the www., sorry. :oops:
User avatar
Optional
 
Posts: 349
Joined: 2007-02-05 05:02

Postby rickh » 2007-03-04 00:46

So, I switched over to 32-bit and tried it there, as well ... Works fine.

Etch 32-bit ... Iceweasel
Debian-Lenny/Sid 32/64
Desktop: Generic Core 2 Duo, EVGA 680i, Nvidia
Laptop: Generic Intel SIS/AC97
User avatar
rickh
 
Posts: 3473
Joined: 2006-06-29 02:13
Location: Albuquerque, NM USA

Postby Grifter » 2007-03-04 00:55

samething22 wrote:I am surprised to hear that it works for someone with etch. Do you have all updates installed?


Just did an apt-get upgrade just now, and the site works fine still

i do have my own kernel, and not a stock one, however this issue is more of a network issue (and moreover probably a dns issue, maybe even on their side)

there is one issue I have with the new 'way of doing things' in etch, specifically with udev; sometimes on a boot, the network interface isn't brought up and I have to manually bring it up

check so your network interface is up
Eagles may soar, but weasels don't get sucked into jet engines...
Grifter
 
Posts: 1572
Joined: 2006-05-04 07:53
Location: Svea Rike

baffled.

Postby samething22 » 2007-03-04 01:25

So, I switched over to 32-bit and tried it there, as well ... Works fine.

Etch 32-bit ... Iceweasel

Just did an apt-get upgrade just now, and the site works fine still

i do have my own kernel, and not a stock one, however this issue is more of a network issue (and moreover probably a dns issue, maybe even on their side)


Thanks for the responses.

:? I am completely baffled then. When I brought this up at Linux Forums, a lot of etch users were unable to reach the web site. See here:
http://www.linuxforums.org/forum/debian ... oblem.html

So, as it stands, here are my weird facts:

- Using my 32-bit etch installation (fully updated, using kernel 2.6.18-4-k7), I cannot get an HTTP response, though I can resolve it, ping it, etc.

- Using an i386 Ubuntu 'feisty fawn' Herd 4 live CD I have the exact same symptoms.

- Using an old i386 Ubuntu 'dapper drake' live CD I can get the site just fine as well.

All this on the same computer.

Furthermore, using a sarge machine on my network (with the same /etc/resolv.conf file), I can get the site just fine as well.

If it is a DNS problem, it is not simply a name resolving issue. I can resolve the hostname just fine. What other kind of DNS issue could it be then? Something having to do with Bind?

If it is an issue on the server end, it is a weird issue there, too. What kind of server issue would make it so that the web server responded to some operating systems and not others?

Your thoughts are appreciated.
samething22
 
Posts: 8
Joined: 2007-03-03 20:22

Postby rickh » 2007-03-04 02:13

I don'thave an answer, but I do have what may be a similar problem. I can not access this website: http://linux-wless.passys.nl/

I know the site is up and I know that some people can get to it, and some can not. I believe there is something wrong on their end, but that doesn't explain why I can't access it. My best theory at this point is that my firewall is somehow blocking it, but that is not really based on knowledge.
Debian-Lenny/Sid 32/64
Desktop: Generic Core 2 Duo, EVGA 680i, Nvidia
Laptop: Generic Intel SIS/AC97
User avatar
rickh
 
Posts: 3473
Joined: 2006-06-29 02:13
Location: Albuquerque, NM USA

Postby rolandas » 2007-04-12 12:39

I can confirm this issue and I think it is kernel issue.
rolandas
 
Posts: 2
Joined: 2007-04-12 11:17

Next

Return to Debian Development

Who is online

Users browsing this forum: No registered users and 3 guests

fashionable