[TriLUG] MS Web Host drops connecions from Linux clients

[Michael Kimsal]

Poked my brother about this (up in Detroit - slow up there too).  His random
notes include:

http://support.microsoft.com/kb/932170
http://forums.whirlpool.net.au/forum-replies-archive.cfm/720119.html
one of the last comments: "Just wanted to give a status update for those
that might be interested.

We are dealing directly with Microsoft regarding this issue and it has been
escalated quite high in the support team.

We have managed to duplicate the issue with Linux as well so the problem is
not just related to Mac OS X. It also relates to any TCP transfer and not
just with SMB.

Looking very much like a bug with Vista and hopefully in time there will be
a hotfix for it."
http://en.wikipedia.org/wiki/Compound_TCP

CTCP is enabled by default in computers running beta versions of Windows
Server 2008 and disabled by default in computers running Windows Vista. CTCP
can be enabled with the command: netsh interface tcp set global
congestionprovider=ctcp   or disabled with the command: netsh interface tcp
set global congestionprovider=none

looks like there are a lot of known problems with vista/2008 and TCP

even pingdom says it takes 3.3 sec to load a 3.8 kb file and 0.6 seconds to
transfer a 3.6 kb file

it's def something wrong with the server and other windows clients ignore
the lost packets and keep resending new ones instead of waiting for
retransmission

On Tue, Nov 3, 2009 at 1:03 PM, Brian Phelps <brphelps at ieee.org> wrote:

> On Tue, Nov 3, 2009 at 12:58 PM, Glenn Hennessee
> <glenn.hennessee at gmail.com>wrote:
>
> > I just did that and the page loads much quicker with javascript turned
> off
> > but there are no menus which means they are entirely javascript. It may a
> > case of bad javascript which causes the slow loading with linux.
> > glenn
>
> Its not a javascript issue.  I promise that is just an illusion. It has
> nothing to do with user-agent or flash either.  Read my earlier posts
>
> >
> >
> >
> > Barry Gaskins wrote:
> >
> >>   Another possible explaination is that the javascript on the page is
> >> failing.  There is a ton of javascript on this site and it does a lot
> >> of stuff intended to figure out what browser / OS you are using and it
> >> does different stuff depending on what it thinks it found.  Maybe it
> >> does not recognize the Linux system and tries to do something stupid
> >> that takes a long time to fail?
> >>
> >>   Has anyone tried loading the page on a Linux system with javascript
> >> turned off?
> >>
> >>
> >>
> >> On Tue, Nov 3, 2009 at 12:08 PM, Glenn Hennessee
> >> <glenn.hennessee at gmail.com> wrote:
> >>
> >>
> >>> I'm not sure that's the problem. I used the User Agent Switcher addin
> for
> >>> FF
> >>> to say I was IE 6 under win xp and it was still very slow to load.
> >>> glenn
> >>>
> >>> Christopher L Merrill wrote:
> >>>
> >>>
> >>>> Lee Fickenscher wrote:
> >>>>
> >>>>
> >>>>> Could it be due to all the asp on their site?
> >>>>>
> >>>>>
> >>>> It is certainly not a problem that is inherent to ASP. Most likely,
> >>>> something
> >>>> is looking at the User-Agent HTTP header and puking when it sees
> Linux.
> >>>> It could be at the firewall, the web server, or deep in their
> >>>> application.
> >>>>
> >>>>
> >>>>
> >>>>
> >>> --
> >>> Glenn Hennessee
> >>> Department of Chemistry
> >>> NC State University
> >>> Raleigh, NC 27606
> >>> Voice: (919) 515-2947 FAX: (919) 515-8909
> >>> Email: Glenn_Hennessee at ncsu.edu
> >>> --
> >>> TriLUG mailing list        :
> >>> http://www.trilug.org/mailman/listinfo/trilug
> >>> TriLUG FAQ  : http://www.trilug.org/wiki/Frequently_Asked_Questions
> >>>
> >>>
> >>>
> >> --
> >> TriLUG mailing list        :
> >> http://www.trilug.org/mailman/listinfo/trilug
> >> TriLUG FAQ  : http://www.trilug.org/wiki/Frequently_Asked_Questions
> >>
> >>
> >
> > --
> > Glenn Hennessee
> > Department of Chemistry
> > NC State University
> > Raleigh, NC 27606
> > Voice: (919) 515-2947 FAX: (919) 515-8909
> > Email: Glenn_Hennessee at ncsu.edu
> > --
> > TriLUG mailing list        :
> http://www.trilug.org/mailman/listinfo/trilug
> > TriLUG FAQ  : http://www.trilug.org/wiki/Frequently_Asked_Questions
> >
> --
> TriLUG mailing list        : http://www.trilug.org/mailman/listinfo/trilug
> TriLUG FAQ  : http://www.trilug.org/wiki/Frequently_Asked_Questions
>



-- 
Michael Kimsal
http://jsmag.com - for javascript developers
http://groovymag.com - for groovy developers
919.827.4724