On 24 Aug 2011, at 13:43, Florian Weimer wrote: > * Dirk-WIllem van Gulik: > >> Hmm - when I remove mod_deflate (i.e. explicitly as it is the default >> in all our installs) and test on a / entry which is a static file >> which is large (100k)* - then I cannot get apache on its knees on a >> freebsd machine - saturating the 1Gbit connection it has (Note: the >> attack machines *are* getting saturated). The moment i put in >> mod_deflate, mod_external filter, etc - it is much easier to get >> deplete enough resources to notice. > > Oh. Have you checked memory usage on the server?
I had not - and you are right - quite high. I also tried it on a Ubuntu machine - and that one dies right out of the gate - regardless as to wether deflate is on- or off. So I guess this is somewhat OS specific - but indeed - not overly deflate specific. Deflate just does something. Ok - let me rewrite advisory draft ! Dw