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Groups > comp.os.linux.networking > #4950

Re: Filtering incoming SSH connections

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On Tue, 07 Sep 2021 19:28:34 -0600, Grant Taylor wrote:

> I took the OP's comment to be in the spirit of wanting to avoid Internet
> Background Radiation noise of various things knocking on the SSH
> daemon's port, be it 22 or otherwise.

	The goal is to make sure that a given physical device can ssh 
into the server no matter what network that device is trying to do so, 
bearing in mind that there may be iptables rules in place that put 
limitations on incoming ssh connections. 

	The obvious approach would be to use some non-standard port for 
ssh connections in the server, known to the server and the target client 
alone, but I wonder whether some feature intrinsic to the client could be 
used instead so that the standard port can be used.

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Thread

Filtering incoming SSH connections Clark Smith <noaddress@nowhere.net> - 2021-09-07 23:01 +0000
  Re: Filtering incoming SSH connections Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-09-07 23:10 +0000
    Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-07 19:28 -0600
      Re: Filtering incoming SSH connections Clark Smith <noaddress@nowhere.net> - 2021-09-08 14:41 +0000
        Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-08 10:32 -0600
          Re: Filtering incoming SSH connections Clark Smith <noaddress@nowhere.net> - 2021-09-08 21:09 +0000
            Re: Filtering incoming SSH connections "Carlos E. R." <robin_listas@es.invalid> - 2021-09-08 23:50 +0200
            Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-08 23:19 -0600
          Re: Filtering incoming SSH connections William Unruh <unruh@invalid.ca> - 2021-09-09 05:19 +0000
            Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-09 12:09 -0600
              Re: Filtering incoming SSH connections William Unruh <unruh@invalid.ca> - 2021-09-11 01:16 +0000
              Re: Filtering incoming SSH connections William Unruh <unruh@invalid.ca> - 2021-09-11 01:21 +0000
                Re: Filtering incoming SSH connections Aragorn <thorongil@telenet.be> - 2021-09-11 05:49 +0200
                Re: Filtering incoming SSH connections William Unruh <unruh@invalid.ca> - 2021-09-11 19:26 +0000
                Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-10 23:55 -0600
                Re: Filtering incoming SSH connections William Unruh <unruh@invalid.ca> - 2021-09-11 19:28 +0000
                Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-11 15:36 -0600
  Re: Filtering incoming SSH connections Grant Taylor <gtaylor@tnetconsulting.net> - 2021-09-07 19:22 -0600
  Re: Filtering incoming SSH connections Richard Kettlewell <invalid@invalid.invalid> - 2021-09-08 08:49 +0100
  Re: Filtering incoming SSH connections William Unruh <unruh@invalid.ca> - 2021-09-09 05:16 +0000

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