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Re: [OT] Remote SSH (dynamic IP) without third-party server

From Joe <joe@jretrading.com>
Newsgroups linux.debian.user
Subject Re: [OT] Remote SSH (dynamic IP) without third-party server
Date 2020-08-01 10:00 +0200
Message-ID <AyUAV-4Nk-1@gated-at.bofh.it> (permalink)
References <AyP8d-1fa-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, 31 Jul 2020 23:03:07 -0300
riveravaldez <riveravaldezmail@gmail.com> wrote:

> Is this possible?
> 
> Hi, to clarify: I would like to connect to a remote home-machine
> (dynamic IP) through SSH session but without using a third-party
> server (free or paid), just with software running in both machines.
> 
> Tox and Jami protocols seem to be able to stablish a quick p2p
> connection in a decentralized fashion (without the need of a central
> server) and I understand that this means that both protocols allow
> each client to find the other one, that is, to know their present IPs
> at all time, no matter how dynamic they are. Is this correct?

Port scanning the entire Internet? Are you sure? There's no other way
for a machine to find another, somewhere in the world, without knowing
its IP address in advance. It will almost certainly turn out that these
protocols rely on machines registering with their servers each time
they are powered up after being given a new dynamic address.

> 
> If so, would be possible to use a similar mechanism to obtain at any
> moment the counterpart's IP and then make a SSH login using such
> information?
> 
> If there's any other simpler way (that doesn't imply the use of any
> third party) please let me know, I could use anything that works.
> 

I would have thought that the only practical way would be to find the
IP range your home machine is in and have the remote machine scan it to
find your home machine, hoping that it's a small block. And hope that
your ISP's firewall doesn't take exception to that and block you.
Probably best to use another port than 22 for this.

Better still is, as David suggested, get a fixed IP address for your
home connection, but many ISPs do not offer this option, even for
'business' accounts.

And you are using keys for ssh, and not passwords, aren't you?

-- 
Joe

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Thread

[OT] Remote SSH (dynamic IP) without third-party server riveravaldez <riveravaldezmail@gmail.com> - 2020-08-01 04:10 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server David Christensen <dpchrist@holgerdanske.com> - 2020-08-01 08:20 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server deloptes <deloptes@gmail.com> - 2020-08-01 14:00 +0200
      Re: [OT] Remote SSH (dynamic IP) without third-party server Dan Purgert <dan@djph.net> - 2020-08-01 17:50 +0200
      Re: [OT] Remote SSH (dynamic IP) without third-party server David Christensen <dpchrist@holgerdanske.com> - 2020-08-02 00:30 +0200
        Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-02 01:10 +0200
          Re: [OT] Remote SSH (dynamic IP) without third-party server David Christensen <dpchrist@holgerdanske.com> - 2020-08-02 03:50 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server <tomas@tuxteam.de> - 2020-08-01 09:50 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server martin f krafft <madduck@debian.org> - 2020-08-01 12:30 +0200
      Re: [OT] Remote SSH (dynamic IP) without third-party server tomas@tuxteam.de - 2020-08-01 14:40 +0200
        Re: [OT] Remote SSH (dynamic IP) without third-party server martin f krafft <madduck@debian.org> - 2020-08-02 01:20 +0200
      Re: [OT] Remote SSH (dynamic IP) without third-party server riveravaldez <riveravaldezmail@gmail.com> - 2020-08-02 04:40 +0200
        Re: [OT] Remote SSH (dynamic IP) without third-party server martin f krafft <madduck@debian.org> - 2020-08-03 01:10 +0200
          Re: [OT] Remote SSH (dynamic IP) without third-party server martin f krafft <madduck@debian.org> - 2020-08-11 01:20 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Joe <joe@jretrading.com> - 2020-08-01 10:00 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server riveravaldez <riveravaldezmail@gmail.com> - 2020-08-01 11:40 +0200
      Re: [OT] Remote SSH (dynamic IP) without third-party server deloptes <deloptes@gmail.com> - 2020-08-01 14:10 +0200
        Re: [OT] Remote SSH (dynamic IP) without third-party server mick crane <mick.crane@gmail.com> - 2020-08-01 14:30 +0200
        Re: [OT] Remote SSH (dynamic IP) without third-party server rhkramer@gmail.com - 2020-08-01 17:30 +0200
        Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-02 06:00 +0200
          Re: [OT] Remote SSH (dynamic IP) without third-party server Gene Heskett <gheskett@shentel.net> - 2020-08-02 07:10 +0200
            Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-02 22:10 +0200
              Re: [OT] Remote SSH (dynamic IP) without third-party server Gene Heskett <gheskett@shentel.net> - 2020-08-02 22:50 +0200
          Re: [OT] Remote SSH (dynamic IP) without third-party server Greg Wooledge <wooledg@eeg.ccf.org> - 2020-08-03 14:00 +0200
            Re: [OT] Remote SSH (dynamic IP) without third-party server Greg Wooledge <wooledg@eeg.ccf.org> - 2020-08-03 21:20 +0200
              Re: [OT] Remote SSH (dynamic IP) without third-party server Charles Curley <charlescurley@charlescurley.com> - 2020-08-03 23:10 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server rhkramer@gmail.com - 2020-08-03 23:30 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-04 03:10 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-04 03:40 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-04 04:10 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Stefan Monnier <monnier@iro.umontreal.ca> - 2020-08-04 04:20 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-04 06:00 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-04 14:40 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-11 06:20 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Greg Wooledge <wooledg@eeg.ccf.org> - 2020-08-11 13:40 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-12 05:30 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-11 14:20 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-12 05:30 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-12 13:40 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-13 16:10 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Celejar <celejar@gmail.com> - 2020-08-04 16:10 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-04 14:40 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Charles Curley <charlescurley@charlescurley.com> - 2020-08-04 19:50 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Greg Wooledge <wooledg@eeg.ccf.org> - 2020-08-04 13:50 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Celejar <celejar@gmail.com> - 2020-08-04 15:40 +0200
            Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-03 21:20 +0200
              Re: [OT] Remote SSH (dynamic IP) without third-party server Nate Bargmann <n0nb@n0nb.us> - 2020-08-04 02:00 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Wright <deblis@lionunicorn.co.uk> - 2020-08-04 03:10 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server Stefan Monnier <monnier@iro.umontreal.ca> - 2020-08-04 04:30 +0200
                Re: [OT] Remote SSH (dynamic IP) without third-party server David Christensen <dpchrist@holgerdanske.com> - 2020-08-04 10:50 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server "Thomas Schmitt" <scdbackup@gmx.net> - 2020-08-01 12:00 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Dan Ritter <dsr@randomstring.org> - 2020-08-01 13:10 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server rhkramer@gmail.com - 2020-08-01 13:20 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server David <bouncingcats@gmail.com> - 2020-08-01 14:10 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Reco <recoverym4n@enotuniq.net> - 2020-08-01 14:40 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Reco <recoverym4n@enotuniq.net> - 2020-08-01 14:40 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-01 17:20 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server "007@caiway.net" <007@caiway.net> - 2020-08-01 17:40 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server "007@caiway.net" <007@caiway.net> - 2020-08-01 18:10 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Nate Bargmann <n0nb@n0nb.us> - 2020-08-01 19:50 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Henrique de Moraes Holschuh <hmh@debian.org> - 2020-08-01 21:40 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server MAS Jean-Louis <jean-louis.mas@imag.fr> - 2020-08-04 16:00 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server Michael Stone <mstone@debian.org> - 2020-08-04 16:20 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server Andrei POPESCU <andreimpopescu@gmail.com> - 2020-08-04 17:40 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Andrei POPESCU <andreimpopescu@gmail.com> - 2020-08-04 17:50 +0200
  Re: [OT] Remote SSH (dynamic IP) without third-party server Curt <curty@free.fr> - 2020-08-04 19:10 +0200
    Re: [OT] Remote SSH (dynamic IP) without third-party server Gene Heskett <gheskett@shentel.net> - 2020-08-04 21:40 +0200
      Re: [OT] Remote SSH (dynamic IP) without third-party server Andrei POPESCU <andreimpopescu@gmail.com> - 2020-08-05 09:40 +0200

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