nanog mailing list archives

Re: Checkpoint IPS


From: Ca By <cb.list6 () gmail com>
Date: Sat, 7 Feb 2015 20:05:29 -0800

On Friday, February 6, 2015, Roland Dobbins <rdobbins () arbor net> wrote:


On 6 Feb 2015, at 23:23, Darden, Patrick wrote:

 And when  your opinion is an acknowledged universal constant, I will tip
my hat to you.


It's been a constant for the last couple of decades - I can't count the
number of times I've been involved in mitigating penny-ante DDoS attacks
which succeeded *solely* due to state exhaustion on stateful firewalls,
'IPS' devices, and load-balancers.

I've seen a 20gb/sec commercial stateful firewall taken down by a 3mb/sec
spoofed SYN-flood.

I've seen a 10gb/sec commercial load-balancer taken down by 60 second at
6kpps - yes, 6kpps - of HOIC.

And so on, and so forth.

'Dismiss' it all you like, but it's a real issue, as others on this list
know from bitter experience.



Hi,

Roland is right.  99% of network based security products are pure snake
oil. Patch you servers, know your base line, statelessly filter unwanted
traffic, rtbh as needed, sleep well at night.

Bye.


-----------------------------------
Roland Dobbins <rdobbins () arbor net>



Current thread: