Freezed download via Wanproxy

Tue Mar 6 22:10:25 PST 2018

Hi Eliezer,

I'm not sure you're addressing Ivan's issue at all, but are instead
basically advertising your own projects.  Ivan is talking about what
happens when a connection is being proxied and the upstream server
disappears, while the client and both proxy devices remain up.  It's a case
worth understanding if for no other reason than to help guide your own
development of go-linux-tproxy.

Thanks,
Juli.

On Tue, Mar 6, 2018 at 10:03 PM, Eliezer Croitoru <eliezer at ngtech.co.il>
wrote:

> Hey Ivan,
>
> It's not clear to me what you are testing or trying to test.
> There are couple levels of optimizations that you might want to achieve
> but you need to clear things for yourself first.
> If you need a full TCP\IP stack proxy then it depends on the network
> structure and also the setup is yet to be clear to me.
> I have a list of proxies at a post I wrote and update from time to time:
> http://www1.ngtech.co.il/wpe/2016/05/02/proxy-per-internet-
> user-is-it-realistic/
>
> but... if you need to access a remote network via a proxy it's one issue.
> If you want to optimize the connection by utilizing the proxy bandwidth
> compared to the client it's another.
> Give us a clear "shot" or "scenario" which I can reproduce locally.
> I need to know what to try and setup so I would be able to try and grasp
> the issue.
>
> I wrote a tiny library and couple examples at:
> https://github.com/elico/go-linux-tproxy
>
> which is being used in couple a very big networks and seems to give them
> what they need.
>
> All The Bests,
> Eliezer
>
> ----
> Eliezer Croitoru
> Linux System Administrator
> Mobile: +972-5-28704261
> Email: eliezer at ngtech.co.il
>
>
>
> -----Original Message-----
> From: Ivan Pizhenko [mailto:ivan.pizhenko at gmail.com]
> Sent: Wednesday, March 7, 2018 04:03
> To: Eliezer Croitoru <eliezer at ngtech.co.il>
> Cc: wanproxy at lists.wanproxy.org
> Subject: Re: Freezed download via Wanproxy
>
> Hi Eliezer,
>
> I am trying to achieve this test passing for Wanproxy. I am
> insterested in doing this exactly with Wanproxy, not any other
> software.
> In this case, HTTP is used as sample, the thing should work regardless
> to any application-level protocol.
> It must work on the TCP/IP connection level.
>
> WBR, Ivan.
>
>
> 2018-03-06 3:33 GMT+02:00 Eliezer Croitoru <eliezer at ngtech.co.il>:
> > Hey Ivan,
> >
> > Can you give more details on what you want to achieve  eventually?
> > Are you trying to achieve a specific goal from one of the options
> WanProxy
> > offers?
> > Depends on the relevant protocol you will use wanproxy for like http you
> > might have another more suitable solution ready to use.
> > There are couple other ways\proxies that offers TCP connections
> optimization
> > but it's very important to be very specific on your goals since a "catch
> > all" solution is not going to help you to resolve a specific issue.
> >
> > Let me know if I might be able to try and help you.
> > Eliezer
> >
> > * if you have tried other ideas then WanProxy let me know which
> >
> > ----
> > Eliezer Croitoru
> > Linux System Administrator
> > Mobile: +972-5-28704261
> > Email: eliezer at ngtech.co.il
> >
> >
> >
> > -----Original Message-----
> > From: wanproxy [mailto:wanproxy-bounces at lists.wanproxy.org] On Behalf Of
> > Ivan Pizhenko
> > Sent: Saturday, February 24, 2018 11:09
> > To: wanproxy at lists.wanproxy.org
> > Subject: Freezed download via Wanproxy
> >
> > Hi,
> >
> > I am making some tests with Wanproxy to understand how much it is
> > stable and reliable. I am using latest Wanproxy code from Github and
> > work on Ubuntu 16.04 LTS with kernel 4.13 and all latest updates.
> >
> > I have conducted following simple test:
> >
> > I have installed locally Apache 2 HTTP Server and put some large file
> > into the document root. Then I have configured, also locally, "client"
> > and "server" Wanproxy similar to how it is described in examples
> > section on wanproxy.org, but without ssh tunnel between them, to proxy
> > Apaches's HTTP port. Then I have used wget to download that large file
> > through "client" Wanproxy. It worked fine but slower than direct
> > download from Apache. Then I have tried to do the same thing but  I
> > have shut down "server" Wanproxy somewhere in the middle of download.
> > The download has freezed, the were no further progress. When I have
> > restarted "server" Wanproxy, the download did not resume. When I shut
> > down client Wanproxy, wget showed error like "connection refused" and
> > exited.
> >
> > I would expect that when "server" Wanproxy went down, "client" one
> > would disconnect clients connected to it to indicate that upstream
> > link is broken, if not immediately, then after some reasonable
> > timeout. Is there a way to achieve something like this with Wanproxy?
> > If not, what changes to Wanproxy are needed to enable such
> > functionality?
> >
> > Ivan.
> > _______________________________________________
> > wanproxy mailing list
> > wanproxy at lists.wanproxy.org
> > http://lists.wanproxy.org/listinfo.cgi/wanproxy-wanproxy.org
> >
>
> _______________________________________________
> wanproxy mailing list
> wanproxy at lists.wanproxy.org
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>
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