Annatomy of a DDoS attack. When ports fill up
Identifying a DDoS attack requires an understanding of normal network behavior. In the left portion of the graph,
ddos
Packets Down Range #37:Netrality, South Front Networks,LibreQos Buffer Test
Hello fellow tech warriors, tinkerers, and trailblazers — welcome back to Packers Down Range, your go-to dispatch from the edge of the digital frontier. Whether you’re knee-deep in fiber splicing, tracking BGP flaps, or just catching up between tower climbs, this issue is packed with insight, tools, and a bit of opinionated wisdom to help … Read more
ISP News for the week ending April29th, 2022
Cloudflare blocks a 15rps DDOs Attack.https://blog.cloudflare.com/15m-rps-ddos-attack/ Good news regarding the chip shortage. “America’s ambitions to rebuild its semiconductor manufacturing industry took a step forward on Monday with the opening of a specialty chip fabrication plant in central New York.”https://asia.nikkei.com/Business/Tech/Semiconductors/U.S.-opens-first-major-silicon-carbide-chip-plant-in-New-York The United States joins 55 nations to set Internet ruleshttps://www.reuters.com/technology/us-joins-55-nations-set-new-global-rules-internet-2022-04-28/ Will a re-brand of Frontier help … Read more
DDoS attacks in high bandwidth bursts
https://www.darkreading.com/threat-intelligence/ddos-attacks-hitting-victims-in-high-bandwidth-bursts Security firm Imperva culled the intelligence from nearly 5,600 network-level attacks encountered by its clients to find that attackers continued to increase the intensity of attacks as they also shortened attack duration. More than half of the attacks lasted eight minutes or less, with attackers repeatedly inundating the same companies with floods of data — including one … Read more
Denial of Service and the xISP Part 1
Most service providers have been the victim of a Denial of Service (DoS) attack at one point or another. Sometimes you may not realize you are under an attack. A few months ago, I posted a simple screenshot at https://blog.j2sw.com/networking/anatomy-of-a-ddos/ of what an active DDoS looks like. Types of AttacksIn order to know what to look for … Read more
Mikrotik DNS DDoS script
Do you want to protect your Mikrotik from DNS DDoS attacks? The following script looks for malformed DNS packets commonly used in DDoS attacks