Comments, behind... Le 12 janvier 2012 06:53, E.S. Rosenberg <esr@xxxxxxxxxxx> a écrit : > 2012/1/11 jeffrey j donovan <donovan@xxxxxxxxxxxxxx>: >> >> On Jan 10, 2012, at 7:45 AM, E.S. Rosenberg wrote: >> >>> Hi, >>> We run a setup where our users are passing through 0-2 proxies before >>> reaching the Internet: >>> - https 0 >>> - http transparent 1 (soon also 2) >>> - http authenticated 2 >>> >>> Lately we are experiencing some (extreme) slowness even-though the >>> load on the line is only about half the available bandwidth, we know >>> that on the ISP side our traffic is also passing through all kinds of >>> proxies/filters etc. So , your ISP does extra filtering? (just to state clear) >>> I would like to somehow be able to see where the slowdowns are >>> happening to rule out that it's not our side at fault, but I don't >>> really know what tool/tools I could use to see what is going on here. Have you identify what kind of traffic is slow and what it is not? This is very important. >>> >>> We suspect that the slowness may be related to the ISP doing >>> Man-in-the-Middle on non-banking SSL traffic (as per request of >>> management), but I really want to rule our side out first.... This statement is almost impossible, if they were all your HTTPS conexion will comply about certificate issues. Is that happens? >>> >>> Thanks, >>> Eli >> >> >> Hi eli, are you caching ? or going direct. > > Hi, sorry for the slow reply. > We are doing some caching, so far we have not optimized it, Calamaris > reports our efficiency between 6-10% on different proxies... Too low, a good proxy shall give you 30% aprox. > Thanks, > Eliyahu - אליהו LD
