Re: [netconf] Latest ietf-netconf-server draft and related modules
Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> Mon, 26 April 2021 17:21 UTC
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Date: Mon, 26 Apr 2021 19:21:43 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Kent Watsen <kent+ietf@watsen.net>
Cc: "netconf@ietf.org" <netconf@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netconf/T7GIycVc1G8Xij0uwwkW7V1dQNE>
Subject: Re: [netconf] Latest ietf-netconf-server draft and related modules
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On Mon, Apr 26, 2021 at 05:06:48PM +0000, Kent Watsen wrote: > > * The sshd_config manage says: > > AuthenticationMethods > Specifies the authentication methods that must be successfully completed for a user to be granted access. This > option must be followed by one or more lists of comma-separated authentication method names, or by the single > string any to indicate the default behaviour of accepting any single authentication method. If the default is > overridden, then successful authentication requires completion of every method in at least one of these lists. > > For example, "publickey,password publickey,keyboard-interactive" would require the user to complete public key > authentication, followed by either password or keyboard interactive authentication. Only methods that are next in > one or more lists are offered at each stage, so for this example it would not be possible to attempt password or > keyboard-interactive authentication before public key. > > > As yet, with the current model, I don’t see a direct correlation to “AuthenticationMethods”, unless you think “keyboard-interactive” is it, but that doesn’t follow from the manpage snippet above. > SSH iterates over the authentication methods that both peers offer. The 'keyboard-interactive' method (RFC 4256) hooks into PAM, for many setups this results by default to password authentication, but depending on the PAM module selected, 'keyboard-interactive' can carry more complex challenge response dialogues. [...] With the generic method defined here, clients will not require code changes to support new authentication mechanisms, and if a separate authentication layer is used, such as [PAM], then the server may not need any code changes either. >From a YANG perspective, keyboard-interactive is of course challenging to model since you end up modeling something as flexible as PAM... /js -- Juergen Schoenwaelder Jacobs University Bremen gGmbH Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany Fax: +49 421 200 3103 <https://www.jacobs-university.de/>
- [netconf] Latest ietf-netconf-server draft and re… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Michal Vaško
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- Re: [netconf] Latest ietf-netconf-server draft an… Juergen Schoenwaelder
- Re: [netconf] Latest ietf-netconf-server draft an… Kent Watsen
- [netconf] netconf-tls wasRe: Latest ietf-netconf-… tom petch
- Re: [netconf] netconf-tls wasRe: Latest ietf-netc… Juergen Schoenwaelder
- Re: [netconf] netconf-tls wasRe: Latest ietf-netc… Kent Watsen
- Re: [netconf] netconf-tls wasRe: Latest ietf-netc… tom petch
- Re: [netconf] netconf-tls wasRe: Latest ietf-netc… Benoit Claise