UCSD's press release got posted to slashdot on 1/24/2003. Here are some of my favorite comments:

by Zeinfeld (263942) on Friday January 24, @11:28AM (#5151296)

If the authors actually thought how the DNS works they would realise the reason for this. A DNS server that gets a request for .com will consult the root the first time and then cache the result. So even though the server might then get a million hits in .com it won't ask the root again.

by Anonymous Coward on Friday January 24, @11:12AM (#5151193)

After all, DNS is fundamentally a non coherent protocol ... and as such relying on caching too much is inevitably going to cause pain.

Might as well put the pain at the root, it is their responsibility.

by PiGuy (531424) on Friday January 24, @11:16AM (#5151225)

It's no wonder these servers have so many problems - there's thirteen of them! They need a lucky #14

by El_Smack (267329) on Friday January 24, @11:20AM (#5151246)

From the article: "Researchers believe that many bad requests occur because organizations have misconfigured packet filters and firewalls, security mechanisms intended to restrict certain types of network traffic. When packet filters and firewalls allow outgoing DNS queries, but block the resulting incoming responses..."

It's nice to see a story with info I can take and use. This is actually "stuff that matters". Kudos to the researchers, and now I am off to check my firewall.

by swordboy (472941) on Friday January 24, @01:16PM (#5152200)

So you're trying to tell me that you've never accidentally typed slashdot.elvis instead of slasdot.org?

by Anonymous Coward on Friday January 24, @11:31AM (#5151318)

Not if you notice the source, I have done work with sdsc and while they may have super computers, not many of the people there are super at using them.

by Anonymous Coward on Friday January 24, @11:18AM (#5151239)

Scientists at the San Diego Supercomputer Centerfound that 98% of the Slashdot comments at the root level are unnecessary.

by prockcore (543967) on Friday January 24, @01:05PM (#5152109)

About 70 percent of all the queries were either identical, or repeat requests for addresses within the same domain. It is as if a telephone user were dialing directory assistance to get the phone numbers of certain businesses, and repeating the directory-assistance calls again and again.

This is somewhat of an invalid metaphor for both the way dns works, and the way computer caching works.

It's also a misinterpretation of the data. The duplicates aren't all coming from the same domain, they're all looking up servers on the same domain.

They're not redundant because they're all coming from different servers. Those idiots at the university are going "look at all these requests for slashdot.org! Talk about redundant!" not understanding that that there are thousands of dns servers requesting the dns.. and DNS entries expire, so they cannot be cached forever.

by casmithva (3765) on Friday January 24, @12:43PM (#5151890)

So let me see if I'm getting this right. According to their article, I've somehow misconfigured my nameserver if a query for slashdot.org goes from my local nameserver to the root, then to a VeriSign gTLD server, and then to a VA Software (or whatever y'all are known as this year) nameserver? Funny, I thought that's how DNS was supposed to work! I suppose they want us to go set up ~300 forward zones in our nameservers to prevent these unnecessary queries...? Yeah, okay, sure, I'll get right on that after lunch. *snicker*

by TerryAtWork (598364) on Friday January 24, @02:46PM (#5152817)

This is pathetic and typical of the UNIX community who are not half as smart as they like to think they are.

SURELY in any application that deals with a ton of data, a maelstrom with which they can hardly keep up, the *first thing you do* is filter out every single possible malformed and nonsensical processing item so you don't have to process it.

And what you DON'T do is kick anything that doesn't make sense upstairs. What were they thinking?

And THIS - the fact that a DNS server - A DNS SERVER! - doesn't know that .elvis does not exist is CRIMINALLY NEGLIGENT. How hard is it to put the little text list file in every DNS server?


Mod me down, take your best shot. JEEZ those Unix snots burn me up.