On Thu, 24 Nov 2011 14:50:45 +0100, debianuser.thegrue wrote:

> we have a strange problem here at our company:
> 
> We have a few linux machines behind a firewall. 

What kind of firewall? Iptables rules or some kind of commercial 
appliance?

> When we start a download on the "newer" machines (kernel 2.6.32-5), the
> download starts fast (~3M/s), then quickly gets slower after about 10
> or 20 seconds and soon stalls completely or proceeds at ~3 Byte/s or
> something like that.
> 
> On the older linux machines with kernel 2.6.26-2, or any other
> machines/OSes, everything is fine.

Computers with older kernels are running the same OS version than 
machines with newer kernels? I mean, is the kernel version the only 
difference between the machines that behave okay or are another factors 
that come to play?

> Until recently, I thought that is a pure firewall and maybe debian
> related problem, but had (have) no clue why. Now we just found out that
> it is independent of the distribution, but depends on the kernel
> version. It might still be some firewall problem (because I never heard
> of this problem outside of our company).
> 
> Have you any idea what's wrong?

I would try first to remove (not in the sense of "eliminating" but 
"bypass") the firewall to discard the problem is generating from there.

Greetings,

-- 
Camaleón


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