Re: Debian box unable to HTTP to www.nai.com - FIXED

[Michael Buice <mabuice@uchicago.edu>]

On Friday 10 August 2001 11:37 pm, Nathan E Norman wrote:
> On Fri, Aug 10, 2001 at 09:07:58PM -0500, Michael Buice wrote:
> > I thoroughly enjoyed this ripping tale of intrigue,
> > adventure, and romance, but would you mind explaining
> > to a debian-newbie exactly who or what the culprit
> > was?  I've been having trouble connecting to various
> > sites (www.ups.com,www.zdnet.com,www.sun.com to name
> > a few) and I have absoluetly no idea why.  I've tried
> > with 4 different web browsers, they all begin
> > making the http connection and just hang.
> > I can ping zdnet and sun but not ups.  I also can't
> > ping amazon but I can load it in a web browser.
> > I've also tried reconfiguring ppp (w/pppconfig).
> > I get the same error when trying to connect to www.nai.com
> > as our hero, so I was hoping the culprit to his caper
> > could lead to the culprit to mine.
>
> I'll share the secret, but only if you learn to reply _below_ the
> message you are responding to (see a post earlier today for clues).
>
> From a root prompt:
>
>   # sysctl -w net.ipv4.tcp_ecn=0
>
> or add the following to /etc/sysctl prior to a reboot:
>
>   net.ipv4.tcp_ecn=0
>
> Cheers,

You see, he CAN be taught! :)

Nathan, I appreciate the tip.  It led me to scour
man pages, kernel documentation, and even allowed
me to track down more information than anyone should
want to know about explicit congestion notification.
Thanks,

Michael