Groups > linux.debian.user > #196782

port knocking

From	basti <mailinglist@unix-solution.de>
Newsgroups	linux.debian.user
Subject	port knocking
Date	2018-06-19 22:10 +0200
Message-ID	<w2v6V-6HM-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hello,
I try use use port knocking and would be happy to do this in ssh config
file.

To open the port I can use ProxyCommand with an wrapper script like

ProxyCommand bash -c 'wrapper.sh %h port1 port2 ... portX; nc %h %p'

so far so good.

But if I understand port knocking in the right way I must close the port
after disconnect?

I havened found a way for this like post-connect in ssh config.

Has anyone a suggestion how it can be implemented?

Best Regards,
Basti

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port knocking basti <mailinglist@unix-solution.de> - 2018-06-19 22:10 +0200
  Re: port knocking john doe <johndoe65534@mail.com> - 2018-06-19 22:30 +0200
    Re: port knocking basti <mailinglist@unix-solution.de> - 2018-06-19 22:40 +0200
      Re: port knocking john doe <johndoe65534@mail.com> - 2018-06-19 22:50 +0200
    Re: port knocking basti <basti@unix-solution.de> - 2018-06-19 23:20 +0200

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