Re: Cannot connect to a website from debian linux box

[evan.day@home.com]

> ...
> 
> If I do the same thing, from my linux box, it just does not respond.
> Now if I run "telnet dcu.fi1.net 443" on sun box, it connects. If I
run the
> same thing on linux box, it does not.

Check your kernel - do you have TCP ECN (Explicit Congestion
Notification)
enabled?  Try:

# cat /proc/sys/net/ipv4/tcp_ecn

If it comes back 1, do this:

# echo 0 > /proc/sys/net/ipv4/tcp_ecn

and then hitting the site.  I added a couple lines to my network startup
scripts to do this until the internet at large can handle ECN properly.
You can also recompile the kernel with ECN turned off.