Client browser is not receiving response from server and remains waiting for it.

Maxim Dounin mdounin at
Fri Jul 27 22:07:52 UTC 2012


On Fri, Jul 27, 2012 at 06:35:00PM -0300, Matias Montenegro wrote:

> Hello, I'm having weird a problem with nginx.
> Sometimes, when I try to access the pages of my dedicated server from my
> browser, I receive no response. My browser remains waiting with no stop
> (there is no timeout).
> I have a dedicated server, with 2 virtual machines. One of them, acts as a
> reverse proxy (with nginx), and the other one, acts as a webserver (nginx
> too).
> I'm tailing the logs. When It happens, logs looks like this:
> - icarabantes [27/Jul/2012:04:01:16 +0400] "GET
> /admin/notification HTTP/1.1" 200 2287 ""
> "Mozilla/5.0
>  (X11; Linux i686; rv:12.0) Gecko/20100101 Firefox/12.0"
> It throws a 200 response, but my browser has never received it.
> The most annoying thing it's that it happens eventually, and then after
> many retrials it comes back...
> Any ideas???

I would try to tcpdump what happens on the wire, preferably on 
both ends (i.e. nginx and a client).  From the description above 
it looks like some wierd network problems, probably caused by some 
misbehaving firewall.

Maxim Dounin

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