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A YANG Data Model for System Management
RFC 7317

Internet Engineering Task Force (IETF)                        A. Bierman
Request for Comments: 7317                                     YumaWorks
Category: Standards Track                                   M. Bjorklund
ISSN: 2070-1721                                           Tail-f Systems
                                                             August 2014

                A YANG Data Model for System Management

Abstract

   This document defines a YANG data model for the configuration and
   identification of some common system properties within a device
   containing a Network Configuration Protocol (NETCONF) server.  This
   document also includes data node definitions for system
   identification, time-of-day management, user management, DNS resolver
   configuration, and some protocol operations for system management.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7317.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Bierman & Bjorklund          Standards Track                    [Page 1]
RFC 7317                 YANG System Management              August 2014

Table of Contents

   1. Introduction ....................................................2
      1.1. Terminology ................................................3
      1.2. Tree Diagrams ..............................................3
   2. Objectives ......................................................4
      2.1. System Identification ......................................4
      2.2. System Time Management .....................................4
      2.3. User Authentication ........................................4
      2.4. DNS Resolver ...............................................5
      2.5. System Control .............................................5
   3. System Data Model ...............................................5
      3.1. System Identification ......................................5
      3.2. System Time Management .....................................6
      3.3. DNS Resolver Model .........................................7
      3.4. RADIUS Client Model ........................................7
      3.5. User Authentication Model ..................................8
           3.5.1. SSH Public Key Authentication .......................8
           3.5.2. Local User Password Authentication ..................9
           3.5.3. RADIUS Password Authentication ......................9
      3.6. System Control .............................................9
   4. Relationship to the SNMPv2-MIB .................................10
   5. IANA Crypt Hash YANG Module ....................................10
   6. System YANG Module .............................................13
   7. IANA Considerations ............................................31
   8. Security Considerations ........................................31
   9. References .....................................................33
      9.1. Normative References ......................................33
      9.2. Informative References ....................................35

1.  Introduction

   This document defines a YANG [RFC6020] data model for the
   configuration and identification of some common properties within a
   device containing a Network Configuration Protocol (NETCONF) server.

   Devices that are managed by NETCONF and perhaps other mechanisms have
   common properties that need to be configured and monitored in a
   standard way.

   The "ietf-system" YANG module defined in this document provides the
   following features:

   o  configuration and monitoring of system identification

   o  configuration and monitoring of system time-of-day

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