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Re: (OT kinda) Newly-discovered TCP flaw



On Thu, 11 Aug 2016 20:31:37 +0100
Lisi Reisz <lisi.reisz@gmail.com> wrote:


> 
> I copied and pasted the commands exactly, and ran them as root, and
> got an echo of net.ipv4.tcp_challenge_ack_limit = 999999999 in
> response to the first and a blank return in response to the second.
> I don't know the significance.
> 

Go and read /proc/net/ipv4... and it should show the changed value.

I believe the echo means it worked. I also believe it needs to be added
to /etc/sysctl.conf (without the 'sysctl -p') to be redone on boot. It
seems to affect every current Debian up to sid.

-- 
Joe


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