On Mon, Jun 4, 2012 at 9:12 AM, Aharon Schkolnik <schkol...@013.net> wrote:
> ** > > On Thursday, May 31, 2012, shimi wrote: > > > On Thu, May 31, 2012 at 2:19 PM, Oleg Goldshmidt <p...@goldshmidt.org> > wrote: > > > > On Thu, May 31, 2012 at 2:10 PM, ronys <ro...@gmx.net> wrote: > > > >> Looks like Walla's having electric problems at their servers: > > > >> http://www.globes.co.il/news/article.aspx?did=1000753302 > > > > > > > > FWIW, I get "connection reset" *all the time* from various Google > > > > services - gmail, news, search, maps, youtube. I stopped raising a > > > > brow, just hit the "try again" button. It never occurred to me to > > > > suspect Linux (this looks to me a Google-specific issue) - I thought > > > > those were glitches in Google's massive datacenters... Or maybe in > > > > some Israeli cache or whatever. > > > > > > More likely than a Linux's "fault", is faulty routers (or appliances) on > > > your path to Google's servers, that think they're smarter than Internet > > > endpoints, instead of just... routing traffic, what they were originally > > > supposed to do. Sometimes it's those "smart" QoS boxes... > > > > > > Recently I did a very long debugging session on a customer of > > > Netvision/Barak, and realized that their equipment doesn't like the > > > "advanced" features enabled by Linux by default - the behavior of the > > > ISP network changed as I modified the things below. I would start > > > echoing 0 to numerous stuff under /proc/sys/net/ipv4/* to see if the > > > problem alleviates. > > > If the problem is related to one of these features, would that explain the > instances where I can get an URL with wget, but not access it from a > browser ? > > > > Yes, different apps can use different features of TCP. Actually, when I started this debugging what I was talking about, Telnet (from netkit-telnetd) to port 80 and access from FF, and MSIE, all behaved differently... Try "tcpdump port 80" and compare the options... -- Shimi
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