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Groups > linux.debian.user > #172654

Re: Need a tutorial

From Gene Heskett <gheskett@shentel.net>
Newsgroups linux.debian.user
Subject Re: Need a tutorial
Date 2016-09-22 18:00 +0200
Message-ID <skezM-8hf-9@gated-at.bofh.it> (permalink)
References <sjQxs-1Ea-15@gated-at.bofh.it> <skacN-5BK-3@gated-at.bofh.it> <skaZc-68M-19@gated-at.bofh.it>
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On Thursday 22 September 2016 08:02:56 tomas@tuxteam.de wrote:

> On Thu, Sep 22, 2016 at 07:09:53AM -0400, Gene Heskett wrote:
> > On Thursday 22 September 2016 03:44:28 Lars Noodén wrote:
> > > On 09/21/2016 11:39 PM, Gene Heskett wrote:
> > > > On Wednesday 21 September 2016 10:23:09 Greg Wooledge wrote:
> > >
> > > ...
> > >
> > > >> man ssh-keygen
> > > >> http://mywiki.wooledge.org/SshKeys
> > > >
> > > > I knew there was something about generating keys, but not the
> > > > sticky details.
> > >
> > > If you have multiple servers or multiple remote accounts, you will
> > > end up with at least one key pair per account+server.  So you will
> > > also need a way to keep track of them.  One way it to make use of
> > > the -C and -f options to add a comment inside the key and to name
> > > the key files to something mnemonic.
> >
> > Now that would be very handy.
> >
> > > As far as the key choices go, DSA is considered deprecated, at
> > > least in the more recent versions:
> > >
> > > 	"Support for ssh-dss, ssh-dss-cert-* host and user keys
> > > 	will be run-time disabled by default"
> > > 	 - http://www.openssh.com/txt/release-6.9
> > >
> > > So that leaves RSA if you have old versions of the OpenSSH server
> > > to deal with.  Probably 2048 bits or more is good for a while.
> > > Otherwise, consider Ed25519.
> >
> > This I am not familiar with. Is there an explanatory url?
>
> In general:
>
>  
> https://debian-administration.org/article/530/SSH_with_authentication_
>key_instead_of_password
>
This one starts out good, but the comments section contains corrections 
that really should be incorporated into the main post itself.  I may run 
it thru some local editing just to get everything in order. In the 
meantime what I have working on the new machine is working but with 
passwords.

> On key choice:
>
>  
> http://security.stackexchange.com/questions/23383/ssh-key-type-rsa-dsa
>-ecdsa-are-there-easy-answers-for-which-to-choose-when

Can ssh-keygen make the newer ones above? I see in a key acceptance 
conversation that it apparently can do the ecdsa. So maybe I shouldn't 
worry. 

> regards
> -- t

Thanks, I think this answers the question nicely.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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Thread

Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-21 16:20 +0200
  Re: Need a tutorial Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-21 16:30 +0200
    Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-21 22:40 +0200
      Re: Need a tutorial Lars Noodén <lars.nooden@gmail.com> - 2016-09-22 09:50 +0200
        Re: Need a tutorial <tomas@tuxteam.de> - 2016-09-22 10:50 +0200
        Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-22 13:20 +0200
          Re: Need a tutorial <tomas@tuxteam.de> - 2016-09-22 14:10 +0200
            Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-22 18:00 +0200
              Re: Need a tutorial Lars Noodén <lars.nooden@gmail.com> - 2016-09-22 18:10 +0200
                Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-22 18:40 +0200
          Re: Need a tutorial Lars Noodén <lars.nooden@gmail.com> - 2016-09-22 14:10 +0200
            Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-22 18:20 +0200
              Re: Need a tutorial davidson@freevolt.org - 2016-09-23 05:10 +0200
    Re: Need a tutorial Jude DaShiell <jdashiel@panix.com> - 2016-09-22 15:50 +0200
      Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-22 18:20 +0200
  Re: Need a tutorial <tomas@tuxteam.de> - 2016-09-21 18:30 +0200
    Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-21 22:50 +0200
    Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-22 17:40 +0200
      Re: Need a tutorial Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-22 17:50 +0200
        Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-22 18:20 +0200
      Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-22 18:10 +0200
      Re: Need a tutorial "Thomas Schmitt" <scdbackup@gmx.net> - 2016-09-22 18:20 +0200
        Re: Need a tutorial Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-22 18:20 +0200
          Re: Need a tutorial "Thomas Schmitt" <scdbackup@gmx.net> - 2016-09-22 18:30 +0200
            Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-22 20:10 +0200
            Re: Need a tutorial Stephan Beck <stebe@mailbox.org> - 2016-09-22 20:30 +0200
        Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-22 19:00 +0200
      Re: Need a tutorial <tomas@tuxteam.de> - 2016-09-22 19:40 +0200
        sending authorized_keys to localhost from an account being created  with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 14:40 +0200
          Re: sending authorized_keys to localhost from an account being created with adduser --disabled-password [was] Re: Need a tutorial Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-23 15:00 +0200
            Re: sending authorized_keys to localhost from an account being  created with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 16:20 +0200
              Re: sending authorized_keys to localhost from an account being  created with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 16:20 +0200
            Re: sending authorized_keys to localhost from an account being  created with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 22:30 +0200
          RESOLVED Re: sending authorized_keys to localhost from an account  being created with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 15:10 +0200
            Re: RESOLVED Re: sending authorized_keys to localhost from an account  being created with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 16:00 +0200
          Re: sending authorized_keys to localhost from an account being  created with adduser --disabled-password [was] Re: Need a tutorial <tomas@tuxteam.de> - 2016-09-23 15:20 +0200
            Re: sending authorized_keys to localhost from an account being  created with adduser --disabled-password [was] Re: Need a tutorial Stephan Beck <sbeck@secure.mailbox.org> - 2016-09-23 18:50 +0200
              Re: sending authorized_keys to localhost from an account being  created with adduser --disabled-password [was] Re: Need a tutorial <tomas@tuxteam.de> - 2016-09-24 16:10 +0200
  Re: Need a tutorial Dominique Dumont <dod@debian.org> - 2016-09-22 17:30 +0200
    Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-22 18:40 +0200
      Re: Need a tutorial Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-22 19:00 +0200
        Re: Need a tutorial Bob Bernstein <poobah@ruptured-duck.com> - 2016-09-22 20:10 +0200
          Re: Need a tutorial "Thomas Schmitt" <scdbackup@gmx.net> - 2016-09-22 21:00 +0200
      Re: Need a tutorial Lars Noodén <lars.nooden@gmail.com> - 2016-09-22 19:10 +0200
      Re: Need a tutorial Dominique Dumont <dod@debian.org> - 2016-09-22 20:20 +0200
        Re: Need a tutorial Greg Wooledge <wooledg@eeg.ccf.org> - 2016-09-22 20:40 +0200
          Re: Need a tutorial Dominique Dumont <dod@debian.org> - 2016-09-22 20:50 +0200
        Re: Need a tutorial Gene Heskett <gheskett@shentel.net> - 2016-09-23 04:30 +0200
          Re: Need a tutorial Dominique Dumont <dod@debian.org> - 2016-09-23 09:20 +0200

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