Subject:
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Re: question for usenet vets....
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Newsgroups:
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lugnet.off-topic.fun
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Date:
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Wed, 2 Dec 1998 21:35:20 GMT
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Reply-To:
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mattdm@mattdm./NoSpam/org
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Viewed:
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329 times
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Richard Dee <richard.dee@nospam.virgin.net> wrote:
> Severe server problems, mail, news, and internet the last few
> days. One of the excuses was that a "SYN" attack had been
> suffered. What is that?
It's a common denial of service attack, basically involving overwhelming a
server with forged TCP/IP packets. To gloss over much technical stuff:
there's a "handshaking" procedure involved in making a TCP/IP connection --
the client and the server send a few initial packets back and forth. A SYN
flood sends millions of "half-handshakes", usually forged to look like
they're coming from different randomized locations. Servers can only deal
with a few of these at a time, so they get swamped and can't answer
legitimate connection requests.
--
Matthew Miller ---> mattdm@mattdm.org
Quotes 'R' Us ---> http://quotes-r-us.org/
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Message has 1 Reply:
 | | Re: question for usenet vets....
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| So it is someone being nasty. It was annoying, to say the least. 2 days without e-mail. Nearly the whole time without lugnet/rtl. And to cap it all off, Outlook Express crashed while downloading messages......lost the whole configuration, and (...) (26 years ago, 3-Dec-98, to lugnet.off-topic.fun)
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Message is in Reply To:
| | question for usenet vets....
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| Severe server problems, mail, news, and internet the last few days. One of the excuses was that a "SYN" attack had been suffered. What is that? -- ___...___ richard.dee@nospam.virgin.net remove nospam dot Web Site: (URL) Instant Messenger: RJD88888 (...) (26 years ago, 2-Dec-98, to lugnet.off-topic.fun)
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