101–110 of 112 posts
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I like this explanation. But is this good network security?
Somewhat tangentially related: a long time ago, certain scanning tools would crash or otherwise not react well to getting a stream of /dev/urandom. You could consider this the more human version.
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> Quick question I'm always wondering why people prefix a question with the statement "quick question". Now is my chance to ask. Is the question typed quickly? Should I imagine you speaking it in a quick manner? Is it meant as "off topic question"? Do you expect an answer quickly? What does it mean when you prefix your question with the words "quick question"?
It means that the asker believes the question is relatively short and thus won't be too much of a burden on the askee.
Actually I am not a native English speaker, I translated it literally from German where we also say "Kurze Frage [...]".
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Surely some enterprising hacker can optimize Nyancat so that a normal server can saturate a gigabit connection without killing the CPU.
I can't seem to edit my post anymore, but the machine in question was a tiny little VM used as an SSH jump host. The specs were minimal. It was the only machine that wasn't firewalled to hell and back, which is why I did the Nyancat there. I'm working on deploying an enterprise grade NaaS solution across a large cluster of servers, stay tuned!
Snrrrrrrk
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Surely some enterprising hacker can optimize Nyancat so that a normal server can saturate a gigabit connection without killing the CPU.
ncfd = open("/dev/nyancat", O_RDONLY); while (...) { sendfile(sockfd, ncfd, ...); }
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It was a hack, I was getting a nice regular supply of probes from Brazillian addresses, connect to port 22, try 5 different passwords on several different ids ad naseum. So I hacked the openssh server to start mutating the response packets. (very trivial genetic programming where the 'fitness' function value was time to respond between calls, longer = better) That went on for a while until the mutated response was so…
That sounds extremely interesting, do you have a write up or source code somewhere? I'd be interested to hear about more applications of adaptive/genetic code to network security.
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It means that the asker believes the question is relatively short and thus won't be too much of a burden on the askee.
I concur - that was the reason at least for me. Actually I am not a native English speaker, I translated it literally from German where we also say "Kurze Frage [...]".
If you like this, you might like Lenny, the bot designed to waste telemarketers' time. https://toao.net/595-lenny https://www.youtube.com/watch?v=lryrm2CVaVg&list=PLduL71_GKz... https://www.reddit.com/r/itslenny/
This is my new obsession for listening to while working.
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You seem like the sort of person who says, "I always lie."
I like it. Because that's also not a paradox, it's just a lie. It can be deceptively difficult to get the wording correct on a paradox.