reverse ssh

[Erez D]

On Sun, Jul 20, 2014 at 3:36 PM, E.S. Rosenberg <esr at g.jct.ac.il> wrote:
> You can have something running on the machine you want to SSH to that
> updates the machine with a fixed IP what its' IP is and have a firewall rule
> or some other way to redirect specific traffic like for instance traffic to
> TCP:22222 from that machine to the IP that it was updated to be....
>
still do not understand what you mean, and how it will let me connect
to a machine with a private ip
>
> 2014-07-20 14:33 GMT+03:00 Erez D <erez0001 at gmail.com>:
>
>> On Sun, Jul 20, 2014 at 1:30 PM, Yedidyah Bar David
>> <linux-il at didi.bardavid.org> wrote:
>> > If you just want an ssh connection you can simply redirect connection
>> > attempts to some port on the
>> > Internet-accessible machine to port 22 on the private-ip one - using
>> > whatever tool that fits you best -
>> > iptables, xinetd, redir, probably many others.
>> > --
>> > Didi
>>
>> i do not understand what do you mean
>> >
>> >
>> > 2014-07-20 13:31 GMT+03:00 Erez D <erez0001 at gmail.com>:
>> >>
>> >> looks a little complicated - extra ssh server, firewall with port
>> >> knocking
>> >> all this for a ssh connection ...
>> >>
>> >> On Sun, Jul 20, 2014 at 11:38 AM, Rabin Yasharzadehe <rabin at rabin.io>
>> >> wrote:
>> >> > you can add a port-knocking tool like fwknop to add a dynamic rule to
>> >> > forward your connection into the privet machine.
>> >> >
>> >> > --
>> >> > Rabin
>> >> >
>> >> >
>> >> > On Sun, Jul 20, 2014 at 12:16 PM, Erez D <erez0001 at gmail.com> wrote:
>> >> >>
>> >> >> On Sun, Jul 20, 2014 at 11:06 AM, Lior Kaplan <kaplanlior at gmail.com>
>> >> >> wrote:
>> >> >> > Didn't check it, but login in with a user who has /bin/true might
>> >> >> > do
>> >> >> > the
>> >> >> > trick.
>> >> >> you are correct, it works.
>> >> >> however it is still a security risk, as this means the client may
>> >> >> listen on unused port ...
>> >> >>
>> >> >> >
>> >> >> > Kaplan
>> >> >> >
>> >> >> >
>> >> >> > On Sun, Jul 20, 2014 at 12:03 PM, Erez D <erez0001 at gmail.com>
>> >> >> > wrote:
>> >> >> >>
>> >> >> >> On Sun, Jul 20, 2014 at 10:39 AM, Lior Kaplan
>> >> >> >> <kaplanlior at gmail.com>
>> >> >> >> wrote:
>> >> >> >> > ssh itself ?
>> >> >> >> >
>> >> >> >> > http://www.thegeekstuff.com/2013/11/reverse-ssh-tunnel/
>> >> >> >> nice, however this requires me to give access to my server, which
>> >> >> >> i
>> >> >> >> do
>> >> >> >> not want ...
>> >> >> >> (or, can i give people permission to ssh to my server only for
>> >> >> >> reverse
>> >> >> >> tunnels and no shell ?)
>> >> >> >>
>> >> >> >> >
>> >> >> >> > Kaplan
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > On Sun, Jul 20, 2014 at 11:36 AM, Erez D <erez0001 at gmail.com>
>> >> >> >> > wrote:
>> >> >> >> >>
>> >> >> >> >> hello
>> >> >> >> >>
>> >> >> >> >> i have a linux machine with a private ip connected to the
>> >> >> >> >> internet
>> >> >> >> >> i have a public ip and need to ssh to the linux box
>> >> >> >> >>
>> >> >> >> >> any tools for that ?
>> >> >> >> >>
>> >> >> >> >> _______________________________________________
>> >> >> >> >> Linux-il mailing list
>> >> >> >> >> Linux-il at cs.huji.ac.il
>> >> >> >> >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>> >> >> >> >
>> >> >> >> >
>> >> >> >
>> >> >> >
>> >> >>
>> >> >> _______________________________________________
>> >> >> Linux-il mailing list
>> >> >> Linux-il at cs.huji.ac.il
>> >> >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>> >> >
>> >> >
>> >>
>> >> _______________________________________________
>> >> Linux-il mailing list
>> >> Linux-il at cs.huji.ac.il
>> >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>> >
>> >
>>
>> _______________________________________________
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>
>