Hi Martin Have you tried to connect directly using SSH? Looks like the tunnel is not working. Try:
ssh -p 3333 localhost Please, check the listen IP of sshd daemon in the client machine. If it's not listening in localhost, you should change the tunnel command (set *listen_ip*): sudo ssh -R *:3333:*listen_ip*:22 ubuntu@54.1.1.1 -i keyfile.pem -N Regards 2014-10-28 0:31 GMT+01:00 Martin Enzinger <martin.enzin...@gmail.com>: > Hi Carlos, > > I'm relieved to hear that this is feasible. > > > > While testing option 1 I always get the same response on the remote > machine: > > > > > > > > > *No handlers could be found for logger "paramiko.transport"Fatal error: > Error reading SSH protocol bannerUnderlying exception: Error reading SSH > protocol banner* > > and this the local output. > > *connect_to localhost port 22: failed.* > > > > > The reverse tunnel is initiated with this command on the local machine > > *sudo ssh -R *:3333:localhost:22 ubuntu@54.1.1.1 <ubuntu@54.1.1.1> -i > keyfile.pem -N* > > > "GatewayPorts yes" in /etc/ssh/sshd_config is set. > And this is the fab command > > *fab -H localhost --port 3333 tester* > > > > > Thank you for your help! > > > > > > > > > On Mon, Oct 27, 2014 at 4:48 PM, Carlos García < > carlos.gar...@stoneworksolutions.net> wrote: > >> Hi Martin, >> >> if I have unterstood your question, that's perfectly possible, as fabric >> uses SSH to access remote servers and execute tasks. So, if you create a >> reverse tunnel as this: >> >> ssh -R localhost:5555:localhost:22 your_server >> >> >> You can use fabric as this on *your_server*: >> >> fab -H localhost --port 5555 your_task >> >> If you're using fabric from another server that access to *your_server*, >> you must configure the sshd daemon on *your_server* to allow you to >> create sockets that listens for remote connections. I think it's not >> allowed by default. Also, your reverse tunnel should be done like this: >> >> ssh -R your_server:5555:localhost:22 your_server >> >> or >> >> ssh -R *:5555:localhost:22 your_server >> >> >> And fabric command would be: >> >> fab -H your_server --port 5555 your_task >> >> Hope it helps! >> >> >> Regards >> >> >> 2014-10-26 20:18 GMT+01:00 Martin Enzinger <martin.enzin...@gmail.com>: >> >>> Hi, >>> >>> if a client is located behind a firewall I usually set up a reverse >>> tunnel between the client and a remote server and then connect via the >>> remote server to the client. >>> >>> Is it possible to use fabric this way? >>> >>> If a reverse tunnel (remote server <-> client) is initiated by the >>> client, can fabric somehow access the client and do its magic? >>> >>> I have full access to the remote server. >>> >>> Thanks, best regards >>> >>> _______________________________________________ >>> Fab-user mailing list >>> Fab-user@nongnu.org >>> https://lists.nongnu.org/mailman/listinfo/fab-user >>> >>> >> >> >> -- >> Carlos García >> Director de Operaciones >> Tel. 695 624 167 - 902 620 100 >> www.stoneworksolutions.net >> >> AVISO DE CONFIDENCIALIDAD >> Tanto este mensaje como todos los posibles documentos adjuntos al mismo >> son confidenciales y están dirigidos exclusivamente a los destinatarios de >> los mismos. Por favor, si Ud no es uno de dichos destinatarios, >> notifíquenos este hecho y elimine el mensaje de su sistema. Queda prohibida >> la copia, difusión o revelación de su contenido a terceros sin el previo >> consentimiento por escrito del remitente. En caso contrario, vulnerarán la >> legislación vigente >> > > -- Carlos García Director de Operaciones Tel. 695 624 167 - 902 620 100 www.stoneworksolutions.net AVISO DE CONFIDENCIALIDAD Tanto este mensaje como todos los posibles documentos adjuntos al mismo son confidenciales y están dirigidos exclusivamente a los destinatarios de los mismos. Por favor, si Ud no es uno de dichos destinatarios, notifíquenos este hecho y elimine el mensaje de su sistema. Queda prohibida la copia, difusión o revelación de su contenido a terceros sin el previo consentimiento por escrito del remitente. En caso contrario, vulnerarán la legislación vigente
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