nanog mailing list archives
Re: UDP port 80 DDoS attack
From: Steve Bertrand <steve.bertrand () gmail com>
Date: Sun, 05 Feb 2012 22:08:19 -0500
On 2012.02.05 20:37, Keegan Holley wrote:
2012/2/5 Dobbins, Roland<rdobbins () arbor net>
S/RTBH - as opposed to D/RTBH - doesn't kill the patient. Again, suggest you read the preso.Source RTBH often falls victim to rapidly changing or spoofed source IP"s. It also isn't as widely supported as it should be. I never said DDOS was hopeless, there just aren't a wealth of defenses against it.
This is so very easily automated. Even if you don't actually want to trigger the routes automatically, finding the sources you want to blackhole is as simple as a monitor port, tcpdump and some basic Perl.
...and as far as this not having been deployed in many ISPs (per your next message)... their mitigation strategies should be asked up front, and if they don't have any (or don't know what you speak of), find a new ISP.
Steve
Current thread:
- Re: UDP port 80 DDoS attack, (continued)
- Re: UDP port 80 DDoS attack Keegan Holley (Feb 09)
- Re: UDP port 80 DDoS attack Keegan Holley (Feb 08)
- Re: UDP port 80 DDoS attack Christopher Morrow (Feb 08)
- RE: UDP port 80 DDoS attack George Bonser (Feb 08)
- Re: UDP port 80 DDoS attack Mark Andrews (Feb 08)
- Re: UDP port 80 DDoS attack Keegan Holley (Feb 08)
- Re: UDP port 80 DDoS attack Dobbins, Roland (Feb 08)
- Re: UDP port 80 DDoS attack bas (Feb 08)
- Re: UDP port 80 DDoS attack Dobbins, Roland (Feb 08)
- Re: UDP port 80 DDoS attack Keegan Holley (Feb 08)
- Re: UDP port 80 DDoS attack Steve Bertrand (Feb 05)
- Re: UDP port 80 DDoS attack Keegan Holley (Feb 05)
- Re: UDP port 80 DDoS attack Steve Bertrand (Feb 05)
- Re: UDP port 80 DDoS attack Jeff Wheeler (Feb 05)
- Re: UDP port 80 DDoS attack dennis (Feb 06)
- Re: UDP port 80 DDoS attack Sven Olaf Kamphuis (Feb 06)
- Re: UDP port 80 DDoS attack Jeff Wheeler (Feb 06)
- Re: UDP port 80 DDoS attack Keegan Holley (Feb 06)
- Re: UDP port 80 DDoS attack Joe Greco (Feb 07)
- RE: UDP port 80 DDoS attack George Bonser (Feb 07)