Hyperloglog with a sliding window on the IP or src/dest connection ports. http://algo.inria.fr/flajolet/Publications/FlFuGaMe07.pdf Page 140, Cool but simple algo to implement. Could be added to the Racket HTTP Server as a DOS capability.
On Sat, Mar 16, 2013 at 10:15 AM, Robby Findler <ro...@eecs.northwestern.edu > wrote: > Woah! I should have checked: I think they were all coming from the same ip > address. I've blocked that IP address and lets see what happens. > > Thanks. > > Robby > > > On Sat, Mar 16, 2013 at 9:04 AM, Laurent <laurent.ors...@gmail.com> wrote: > >> I don't how much of this is done right now, or is feasible, but just in >> case here are some suggestions: >> - Don't allow more than 5-10 bug reports in one hour from the same IP, >> with possible ban (+ visual warning) >> - Use something like SpamAssassin, tuned toward bug-reporting >> - Restrict bug reporting to registered users only (but this is probably a >> bad policy) >> - Make the user pay $1 for each bug report (+ optionally introduce random >> bugs in Racket), and pay me back 50% for the idea. >> >> Laurent >> >> >> On Sat, Mar 16, 2013 at 2:39 PM, Robby Findler < >> ro...@eecs.northwestern.edu> wrote: >> >>> Hi all: I'm sorry to say that I've just disabled planet's bug reporting >>> system. Over the last 24 hours, we've gotten about 2,000 spam bug reports. >>> (They are all gone now.) >>> >>> I'm also sorry to report that I deleted bug number 509 by accident (it >>> was not spam). >>> >>> The bug report system was using recaptcha (still is there, actually if >>> you want to see: http://planet.racket-lang.org/trac/newticket) but >>> apparently that's now been broken. >>> >>> I'm not sure what's the right approach to take in fixing this, so if >>> people have suggestions I'm all ears and motivated in a way that I wasn't >>> last time this came up on the list. >>> >>> Robby >>> >>> >>> ____________________ >>> Racket Users list: >>> http://lists.racket-lang.org/users >>> >>> >> > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users > >
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