[zeromq-dev] Fwd: Beginner question with respect to zmq_proxy

Nishant Mittal nmittal at rblt.com
Thu Dec 27 17:47:28 CET 2012


Andy, taotetek on IRC suggested to try telnet.. and i confirmed telnet
works in both directions.. so it couldnt be the firewall.. rt?

pieterh thinks it could be the version mismatch on the 2 machines.. 1 has
3.2.0 and the other (my machine) has 3.2.2

I am going to upgrade the version and see if that fixes this.

thanks


On Thu, Dec 27, 2012 at 11:45 AM, Andy Ballingall TF <
ballingall at thefoundry.co.uk> wrote:

> ... and
>
> sudo service iptables start
>
> restarts the firewall again, I should add!
>
> On 27 December 2012 16:44, Andy Ballingall TF
> <ballingall at thefoundry.co.uk> wrote:
> > On 27 December 2012 16:16, Nishant Mittal <nmittal at rblt.com> wrote:
> >> they are on the same network.. i can check if Ubuntu firewalls are
> playing a
> >> role..
> > The easiest thing to do (if safe to do so) would be to temporarily
> > switch off the firewall entirely. If it starts working, then that's
> > the reason! If you're using iptables, try:
> >
> > sudo service iptables stop
> >
> > ...on both machines. If the problem persists, (and your firewall is
> > iptables), then the problem is elsewhere.
> >
> > Andy
> >
> >>
> >>
> >> On Thu, Dec 27, 2012 at 11:13 AM, Andy Ballingall TF
> >> <ballingall at thefoundry.co.uk> wrote:
> >>>
> >>> Could it be a firewall issue?
> >>>
> >>> On 27 December 2012 16:03, Nishant Mittal <nmittal at rblt.com> wrote:
> >>> > Apostolis, client knows how to resolve 'nishant' and the request is
> >>> > actually
> >>> > coming to the worker.. its the response thats not going back.
> >>> > and i tried with IP as well, same result.
> >>> >
> >>> > thanks
> >>> >
> >>> >
> >>> >
> >>> > On Thu, Dec 27, 2012 at 10:36 AM, Apostolis Xekoukoulotakis
> >>> > <xekoukou at gmail.com> wrote:
> >>> >>
> >>> >> How can the client know what "nishant" means? Put the ip address
> >>> >> instead.
> >>> >>
> >>> >> 2012/12/26 Nishant Mittal <nmittal at rblt.com>
> >>> >>>
> >>> >>> Hi All,
> >>> >>> I have a zmq_proxy device with ROUTER and DEALER in the front and
> back
> >>> >>> (attached code broker.c)
> >>> >>> router binds to tcp://*:5551 and dealer binds to tcp://*:6551
> >>> >>> the client connects to router with a REQ socket as
> tcp://nishant:5551
> >>> >>> and
> >>> >>> worker connects to dealer with a REP socket as tcp://nishant:6551
> >>> >>> where
> >>> >>> nishant is the hostname of the machine..
> >>> >>>
> >>> >>> the above works fine
> >>> >>>
> >>> >>> however, if I move the client to another machine.. the worker sees
> the
> >>> >>> request but the client doesn't get any response.. what am I doing
> >>> >>> wrong?
> >>> >>>
> >>> >>> thanks in advance for your help.
> >>> >>>
> >>> >>> --
> >>> >>> Nishant Mittal
> >>> >>>
> >>> >>>
> >>> >>> _______________________________________________
> >>> >>> zeromq-dev mailing list
> >>> >>> zeromq-dev at lists.zeromq.org
> >>> >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
> >>> >>>
> >>> >>
> >>> >>
> >>> >>
> >>> >> --
> >>> >>
> >>> >>
> >>> >> Sincerely yours,
> >>> >>
> >>> >>      Apostolis Xekoukoulotakis
> >>> >>
> >>> >>
> >>> >> _______________________________________________
> >>> >> zeromq-dev mailing list
> >>> >> zeromq-dev at lists.zeromq.org
> >>> >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
> >>> >>
> >>> >
> >>> >
> >>> > _______________________________________________
> >>> > zeromq-dev mailing list
> >>> > zeromq-dev at lists.zeromq.org
> >>> > http://lists.zeromq.org/mailman/listinfo/zeromq-dev
> >>> >
> >>>
> >>>
> >>>
> >>> --
> >>> Andy Ballingall
> >>> Senior Software Engineer
> >>>
> >>> The Foundry
> >>> 6th Floor, The Communications Building,
> >>> 48, Leicester Square,
> >>> London, WC2H 7LT, UK
> >>> Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
> >>> Web: http://www.thefoundry.co.uk/
> >>>
> >>> The Foundry Visionmongers Ltd.
> >>> Registered in England and Wales No: 4642027
> >>> _______________________________________________
> >>> zeromq-dev mailing list
> >>> zeromq-dev at lists.zeromq.org
> >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
> >>
> >>
> >>
> >>
> >> --
> >> Nishant Mittal
> >> Director, Product Development
> >> Rosenblatt Securities Inc.
> >> 20 Broad Street
> >> New York, NY 10005
> >>
> >> Direct: 212-607-3159
> >> Mobile: 646-504-2629
> >>
> >> _______________________________________________
> >> zeromq-dev mailing list
> >> zeromq-dev at lists.zeromq.org
> >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
> >>
> >
> >
> >
> > --
> > Andy Ballingall
> > Senior Software Engineer
> >
> > The Foundry
> > 6th Floor, The Communications Building,
> > 48, Leicester Square,
> > London, WC2H 7LT, UK
> > Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
> > Web: http://www.thefoundry.co.uk/
> >
> > The Foundry Visionmongers Ltd.
> > Registered in England and Wales No: 4642027
>
>
>
> --
> Andy Ballingall
> Senior Software Engineer
>
> The Foundry
> 6th Floor, The Communications Building,
> 48, Leicester Square,
> London, WC2H 7LT, UK
> Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
> Web: http://www.thefoundry.co.uk/
>
> The Foundry Visionmongers Ltd.
> Registered in England and Wales No: 4642027
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>



-- 
*Nishant Mittal*
Director, Product Development
*Rosenblatt Securities Inc*.
20 Broad Street
New York, NY 10005

Direct: 212-607-3159
Mobile: 646-504-2629
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