RFC 1123: Requirements for Internet Hosts - Application and Support

RFC1123                       INTRODUCTION                  October 1989


         5.3.6  Mailing Lists and Aliases .........................   65
         5.3.7  Mail Gatewaying ...................................   66
         5.3.8  Maximum Message Size ..............................   68
      5.4  SMTP REQUIREMENTS SUMMARY ..............................   69

   6. SUPPORT SERVICES ............................................   72
      6.1 DOMAIN NAME TRANSLATION .................................   72
         6.1.1 INTRODUCTION .......................................   72
         6.1.2  PROTOCOL WALK-THROUGH .............................   72
            6.1.2.1  Resource Records with Zero TTL ...............   73
            6.1.2.2  QCLASS Values ................................   73
            6.1.2.3  Unused Fields ................................   73
            6.1.2.4  Compression ..................................   73
            6.1.2.5  Misusing Configuration Info ..................   73
         6.1.3  SPECIFIC ISSUES ...................................   74
            6.1.3.1  Resolver Implementation ......................   74
            6.1.3.2  Transport Protocols ..........................   75
            6.1.3.3  Efficient Resource Usage .....................   77
            6.1.3.4  Multihomed Hosts .............................   78
            6.1.3.5  Extensibility ................................   79
            6.1.3.6  Status of RR Types ...........................   79
            6.1.3.7  Robustness ...................................   80
            6.1.3.8  Local Host Table .............................   80
         6.1.4  DNS USER INTERFACE ................................   81
            6.1.4.1  DNS Administration ...........................   81
            6.1.4.2  DNS User Interface ...........................   81
            6.1.4.3 Interface Abbreviation Facilities .............   82
         6.1.5  DOMAIN NAME SYSTEM REQUIREMENTS SUMMARY ...........   84
      6.2  HOST INITIALIZATION ....................................   87
         6.2.1  INTRODUCTION ......................................   87
         6.2.2  REQUIREMENTS ......................................   87
            6.2.2.1  Dynamic Configuration ........................   87
            6.2.2.2  Loading Phase ................................   89
      6.3  REMOTE MANAGEMENT ......................................   90
         6.3.1  INTRODUCTION ......................................   90
         6.3.2  PROTOCOL WALK-THROUGH .............................   90
         6.3.3  MANAGEMENT REQUIREMENTS SUMMARY ...................   92

   7.  REFERENCES .................................................   93












Internet Engineering Task Force                                 [Page 4]