Feeds

Spammers tax DNS infrastructures

Net blueprints in need of revision?

  • alert
  • submit to reddit

High performance access to file storage

Spammers are straining the world's Domain Name System (DNS) infrastructure. eWeek reports that emerging tactics - such as sending bulk mailings at night from very-recently registered domains - are placing a heavy load on DNS servers attempting to look-up non-existent domains.

Bulk mailers are adopting the 'registration after sending' ruse to make it more difficult for spam fighters to track junk mail attacks. But the side effects include widespread message congestion. The shutdown of domains by spammers shortly after a bulk mailout has been sent out can also tax DNS servers trying to resolve defunct domains.

Sysadmins can do little except provision extra capacity. Solving the problem might require a fundamental rethink of current internet architectures.

"We have to figure out how to taper DNS services gracefully rather than having catastrophic failures," Paul Mockapetris, DNS pioneer and chief scientist at Nominum, told eWeek. "Mail look-up was the first application put on top of DNS after I designed it, and I was so excited to see that. And now, 20 years later, people are trying to figure out how to stop doing mail look-up on DNS. It's bizarre."

DNS servers, which translate domain address into IP addresses, are used to direct billions of email messages every day as well as helping surfers to find their way around the net. ®

Related stories

Sender authentication is coming
Confusion reigns after FTC spam summit
DNS inventor calls for security overhaul

High performance access to file storage

More from The Register

next story
Parent gabfest Mumsnet hit by SSL bug: My heart bleeds, grins hacker
Natter-board tells middle-class Britain to purée its passwords
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
Web data BLEEDOUT: Users to feel the pain as Heartbleed bug revealed
Vendors and ISPs have work to do updating firmware - if it's possible to fix this
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Snowden-inspired crypto-email service Lavaboom launches
German service pays tribute to Lavabit
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
Call of Duty 'fragged using OpenSSL's Heartbleed exploit'
So it begins ... or maybe not, says one analyst
NSA denies it knew about and USED Heartbleed encryption flaw for TWO YEARS
Agency forgets it exists to protect communications, not just spy on them
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
HP ArcSight ESM solution helps Finansbank
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.