Re: [LARTC] linux 2.4.3

Re: [LARTC] linux 2.4.3

[Ramin Alidousti]

What do you mean by all the applications? If you're having problems
with TCP based applications, it's probably due to the ECN option on
TCP. Turn it off, recompile the kernel and you should be OK.

Ramin

On Fri, Apr 20, 2001 at 05:47:04PM +0530, Mehul Vora wrote:

> hii all,
> 
> sorry for posting a kernel related query... but ill appreciate if someone could please help me out...
> 
> i am running redhat linux 7.0 with kernel 2.2.16... i downloaded kernel 2.4.3 from web and compiled and booted through that... but strangely so, all my application level programs fail to run... i can ping to a machine, but i cant telnet/ftp/web... it says connection refused... any ideas?
> 
> cheers
> mehul

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[LARTC] linux 2.4.3

[Mehul Vora]

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hii all,

sorry for posting a kernel related query... but ill appreciate if someone could please help me out...

i am running redhat linux 7.0 with kernel 2.2.16... i downloaded kernel 2.4.3 from web and compiled and booted through that... but strangely so, all my application level programs fail to run... i can ping to a machine, but i cant telnet/ftp/web... it says connection refused... any ideas?

cheers
mehul

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Re: [LARTC] linux 2.4.3

[RoMaN SoFt / LLFB!!]

On Fri, 20 Apr 2001 08:20:57 -0400, you wrote:

>What do you mean by all the applications? If you're having problems
>with TCP based applications, it's probably due to the ECN option on
>TCP. Turn it off, recompile the kernel and you should be OK.
>
>Ramin

 Also read /usr/src/linux/Documentation/Changes, because you'll have
to update some packets (apart from kernel) like modutils! If not all
services using modules will fail.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
    ** RoMaN SoFt / LLFB **  
       roman@madrid.com
   http://pagina.de/romansoft
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Re: [LARTC] linux 2.4.3

[Wil Cooley]

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Thus spake Ramin Alidousti:
> What do you mean by all the applications? If you're having problems
> with TCP based applications, it's probably due to the ECN option on
> TCP. Turn it off, recompile the kernel and you should be OK.

You can also add to /etc/sysctl.conf:

# Disables explicit congestion notification
net.ipv4.tcp_ecn = 0

And reload with 'sysctl -p'.  (Or of course 'echo 0 >
/proc/sys/net/ipv4/tcp_ecn')  No need to rebuild your kernel.

Wil
-- 
W. Reilly Cooley                         wcooley@nakedape.cc
Naked Ape Consulting                      http://nakedape.cc
LNXS: Linux/GNU for servers, networks, and   http://lnxs.org
people who take care of them.  *Now with integrated crypto!*
irc.openprojects.net                                   #lnxs

The penalty for laughing in a courtroom is six months in jail; if it
were not for this penalty, the jury would never hear the evidence.
		-- H. L. Mencken

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Re: [LARTC] linux 2.4.3

[Ramin Alidousti]

On Fri, Apr 20, 2001 at 01:03:46PM -0700, Wil Cooley wrote:

> Thus spake Ramin Alidousti:
> > What do you mean by all the applications? If you're having problems
> > with TCP based applications, it's probably due to the ECN option on
> > TCP. Turn it off, recompile the kernel and you should be OK.
> 
> You can also add to /etc/sysctl.conf:
> 
> # Disables explicit congestion notification
> net.ipv4.tcp_ecn = 0
> 
> And reload with 'sysctl -p'.  (Or of course 'echo 0 >
> /proc/sys/net/ipv4/tcp_ecn')  No need to rebuild your kernel.
> 
> Wil

duh-- what was I thinking??

Ramin

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