DNS-SERVER-MIB device MIB details by RFC

DNS-SERVER-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing DNS-SERVER-MIB.

Vendor:	RFC
Mib:	DNS-SERVER-MIB  [download]  [view objects]
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-- WinAgents MIB Extraction Wizard
-- Extracted from rfc1611.txt 16.03.2005 20:20:19

DNS-SERVER-MIB DEFINITIONS ::= BEGIN

IMPORTS
    mib-2
        FROM RFC-1213
    MODULE-IDENTITY, OBJECT-TYPE, OBJECT-IDENTITY,
    IpAddress, Counter32, Gauge32
        FROM SNMPv2-SMI
    TEXTUAL-CONVENTION, RowStatus, DisplayString, TruthValue
        FROM SNMPv2-TC
    MODULE-COMPLIANCE, OBJECT-GROUP
        FROM SNMPv2-CONF;

dns OBJECT-IDENTITY
    STATUS  current
    DESCRIPTION
            "The OID assigned to DNS MIB work by the IANA."
    ::= { mib-2 32 }

dnsServMIB MODULE-IDENTITY
    LAST-UPDATED "9401282251Z"
    ORGANIZATION "IETF DNS Working Group"
    CONTACT-INFO
            "       Rob Austein
            Postal: Epilogue Technology Corporation
                    268 Main Street, Suite 283
                    North Reading, MA 10864
                    US
               Tel: +1 617 245 0804
               Fax: +1 617 245 8122
            E-Mail: sra@epilogue.com

                    Jon Saperia
            Postal: Digital Equipment Corporation
                    110 Spit Brook Road
                    ZKO1-3/H18
                    Nashua, NH 03062-2698
                    US
               Tel: +1 603 881 0480
               Fax: +1 603 881 0120
             Email: saperia@zko.dec.com"
    DESCRIPTION
            "The MIB module for entities implementing the server side
            of the Domain Name System (DNS) protocol."
    ::= { dns 1 }


dnsServMIBObjects       OBJECT IDENTIFIER ::= { dnsServMIB 1 }

-- (Old-style) groups in the DNS server MIB.

dnsServConfig           OBJECT IDENTIFIER ::= { dnsServMIBObjects 1 }
dnsServCounter          OBJECT IDENTIFIER ::= { dnsServMIBObjects 2 }
dnsServOptCounter       OBJECT IDENTIFIER ::= { dnsServMIBObjects 3 }
dnsServZone             OBJECT IDENTIFIER ::= { dnsServMIBObjects 4 }


-- Textual conventions

DnsName ::= TEXTUAL-CONVENTION
    -- A DISPLAY-HINT would be nice, but difficult to express.
    STATUS  current
    DESCRIPTION
            "A DNS name is a sequence of labels.  When DNS names are
            displayed, the boundaries between labels are typically
            indicated by dots (e.g. `Acme' and `COM' are labels in
            the name `Acme.COM').  In the DNS protocol, however, no
            such separators are needed because each label is encoded
            as a length octet followed by the indicated number of
            octets of label.  For example, `Acme.COM' is encoded as
            the octet sequence { 4, 'A', 'c', 'm', 'e', 3, 'C', 'O',
            'M', 0 } (the final 0 is the length of the name of the
            root domain, which appears implicitly at the end of any
            DNS name).  This MIB uses the same encoding as the DNS
            protocol.

            A DnsName must always be a fully qualified name.  It is
            an error to encode a relative domain name as a DnsName
            without first making it a fully qualified name."
    REFERENCE
            "RFC-1034 section 3.1."
    SYNTAX  OCTET STRING (SIZE (0..255))

DnsNameAsIndex ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
            "This textual convention is like a DnsName, but is used
            as an index componant in tables.  Alphabetic characters
            in names of this type are restricted to uppercase: the
            characters 'a' through 'z' are mapped to the characters
            'A' through 'Z'.  This restriction is intended to make
            the lexical ordering imposed by SNMP useful when applied
            to DNS names.

            Note that it is theoretically possible for a valid DNS

            name to exceed the allowed length of an SNMP object
            identifer, and thus be impossible to represent in tables
            in this MIB that are indexed by DNS name.  Sampling of
            DNS names in current use on the Internet suggests that
            this limit does not pose a serious problem in practice."
    REFERENCE
            "RFC-1034 section 3.1, RFC-1448 section 4.1."
    SYNTAX  DnsName

DnsClass ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "2d"
    STATUS  current
    DESCRIPTION
            "This data type is used to represent the class values
            which appear in Resource Records in the DNS.  A 16-bit
            unsigned integer is used to allow room for new classes
            of records to be defined.  Existing standard classes are
            listed in the DNS specifications."
    REFERENCE
            "RFC-1035 section 3.2.4."
    SYNTAX  INTEGER (0..65535)

DnsType ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "2d"
    STATUS  current
    DESCRIPTION
            "This data type is used to represent the type values
            which appear in Resource Records in the DNS.  A 16-bit
            unsigned integer is used to allow room for new record
            types to be defined.  Existing standard types are listed
            in the DNS specifications."
    REFERENCE
            "RFC-1035 section 3.2.2."
    SYNTAX  INTEGER (0..65535)

DnsQClass ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "2d"
    STATUS  current
    DESCRIPTION
            "This data type is used to represent the QClass values
            which appear in Resource Records in the DNS.  A 16-bit
            unsigned integer is used to allow room for new QClass
            records to be defined.  Existing standard QClasses are
            listed in the DNS specification."
    REFERENCE
            "RFC-1035 section 3.2.5."
    SYNTAX  INTEGER (0..65535)


DnsQType ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "2d"
    STATUS  current
    DESCRIPTION
            "This data type is used to represent the QType values
            which appear in Resource Records in the DNS.  A 16-bit
            unsigned integer is used to allow room for new QType
            records to be defined.  Existing standard QTypes are
            listed in the DNS specification."
    REFERENCE
            "RFC-1035 section 3.2.3."
    SYNTAX  INTEGER (0..65535)

DnsTime ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "4d"
    STATUS  current
    DESCRIPTION
            "DnsTime values are 32-bit unsigned integers which
            measure time in seconds."
    REFERENCE
            "RFC-1035."
    SYNTAX  Gauge32


DnsOpCode ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
            "This textual convention is used to represent the DNS
            OPCODE values used in the header section of DNS
            messages.  Existing standard OPCODE values are listed in
            the DNS specifications."
    REFERENCE
            "RFC-1035 section 4.1.1."
    SYNTAX  INTEGER (0..15)

DnsRespCode ::= TEXTUAL-CONVENTION
    STATUS  current
    DESCRIPTION
            "This data type is used to represent the DNS RCODE value
            in DNS response messages.  Existing standard RCODE
            values are listed in the DNS specifications."
    REFERENCE
            "RFC-1035 section 4.1.1."
    SYNTAX  INTEGER (0..15)





-- Server Configuration Group

dnsServConfigImplementIdent OBJECT-TYPE
    SYNTAX      DisplayString
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The implementation identification string for the DNS
            server software in use on the system, for example;
            `FNS-2.1'"
    ::= { dnsServConfig 1 }

dnsServConfigRecurs  OBJECT-TYPE
    SYNTAX      INTEGER { available(1),
                          restricted(2),
                          unavailable(3) }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "This represents the recursion services offered by this
            name server.  The values that can be read or written
            are:

            available(1) - performs recursion on requests from
            clients.

            restricted(2) - recursion is performed on requests only
            from certain clients, for example; clients on an access
            control list.

            unavailable(3) - recursion is not available."
     ::= { dnsServConfig 2 }

dnsServConfigUpTime OBJECT-TYPE
    SYNTAX      DnsTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "If the server has a persistent state (e.g., a process),
            this value will be the time elapsed since it started.
            For software without persistant state, this value will
            be zero."
    ::= { dnsServConfig 3 }

dnsServConfigResetTime OBJECT-TYPE
    SYNTAX      DnsTime
    MAX-ACCESS  read-only
    STATUS      current

    DESCRIPTION
            "If the server has a persistent state (e.g., a process)
            and supports a `reset' operation (e.g., can be told to
            re-read configuration files), this value will be the
            time elapsed since the last time the name server was
            `reset.'  For software that does not have persistence or
            does not support a `reset' operation, this value will be
            zero."
    ::= { dnsServConfig 4 }

dnsServConfigReset OBJECT-TYPE
    SYNTAX      INTEGER { other(1),
                          reset(2),
                          initializing(3),
                          running(4) }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "Status/action object to reinitialize any persistant name
            server state.  When set to reset(2), any persistant
            name server state (such as a process) is reinitialized as
            if the name server had just been started.  This value
            will never be returned by a read operation.  When read,
            one of the following values will be returned:
                other(1) - server in some unknown state;
                initializing(3) - server (re)initializing;
                running(4) - server currently running."
    ::= { dnsServConfig 5 }


-- Server Counter Group

dnsServCounterAuthAns OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries which were authoritatively answered."
    ::= { dnsServCounter 2 }

dnsServCounterAuthNoNames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries for which `authoritative no such name'
            responses were made."
    ::= { dnsServCounter 3 }

dnsServCounterAuthNoDataResps OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries for which `authoritative no such data'
            (empty answer) responses were made."
    ::= { dnsServCounter 4 }

dnsServCounterNonAuthDatas OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries which were non-authoritatively
            answered (cached data)."
    ::= { dnsServCounter 5 }

dnsServCounterNonAuthNoDatas OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries which were non-authoritatively
            answered with no data (empty answer)."
    ::= { dnsServCounter 6 }

dnsServCounterReferrals OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests that were referred to other servers."
    ::= { dnsServCounter 7 }

dnsServCounterErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed that were
            answered with errors (RCODE values other than 0 and 3)."
    REFERENCE
            "RFC-1035 section 4.1.1."
    ::= { dnsServCounter 8 }

dnsServCounterRelNames OBJECT-TYPE
    SYNTAX      Counter32

    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests received by the server for names that
            are only 1 label long (text form - no internal dots)."
    ::= { dnsServCounter 9 }

dnsServCounterReqRefusals OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of DNS requests refused by the server."
    ::= { dnsServCounter 10 }

dnsServCounterReqUnparses OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests received which were unparseable."
    ::= { dnsServCounter 11 }

dnsServCounterOtherErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests which were aborted for other (local)
            server errors."
    ::= { dnsServCounter 12 }

-- DNS Server Counter Table

dnsServCounterTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF DnsServCounterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Counter information broken down by DNS class and type."
    ::= { dnsServCounter 13 }

dnsServCounterEntry OBJECT-TYPE
    SYNTAX      DnsServCounterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "This table contains count information for each DNS class

            and type value known to the server.  The index allows
            management software to to create indices to the table to
            get the specific information desired, e.g., number of
            queries over UDP for records with type value `A' which
            came to this server.  In order to prevent an
            uncontrolled expansion of rows in the table; if
            dnsServCounterRequests is 0 and dnsServCounterResponses
            is 0, then the row does not exist and `no such' is
            returned when the agent is queried for such instances."
    INDEX     { dnsServCounterOpCode,
                dnsServCounterQClass,
                dnsServCounterQType,
                dnsServCounterTransport }
    ::= { dnsServCounterTable 1 }

DnsServCounterEntry ::=
    SEQUENCE {
        dnsServCounterOpCode
            DnsOpCode,
        dnsServCounterQClass
            DnsClass,
        dnsServCounterQType
            DnsType,
        dnsServCounterTransport
            INTEGER,
        dnsServCounterRequests
            Counter32,
        dnsServCounterResponses
            Counter32
        }

dnsServCounterOpCode OBJECT-TYPE
    SYNTAX      DnsOpCode
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The DNS OPCODE being counted in this row of the table."
    ::= { dnsServCounterEntry 1 }

dnsServCounterQClass OBJECT-TYPE
    SYNTAX      DnsClass
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The class of record being counted in this row of the
            table."
    ::= { dnsServCounterEntry 2 }


dnsServCounterQType OBJECT-TYPE
    SYNTAX      DnsType
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The type of record which is being counted in this row in
            the table."
    ::= { dnsServCounterEntry 3 }

dnsServCounterTransport OBJECT-TYPE
    SYNTAX      INTEGER { udp(1), tcp(2), other(3) }
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "A value of udp(1) indicates that the queries reported on
            this row were sent using UDP.

            A value of tcp(2) indicates that the queries reported on
            this row were sent using TCP.

            A value of other(3) indicates that the queries reported
            on this row were sent using a transport that was neither
            TCP nor UDP."
    ::= { dnsServCounterEntry 4 }

dnsServCounterRequests OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests (queries) that have been recorded in
            this row of the table."
    ::= { dnsServCounterEntry 5 }

dnsServCounterResponses OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of responses made by the server since
            initialization for the kind of query identified on this
            row of the table."
    ::= { dnsServCounterEntry 6 }






-- Server Optional Counter Group

-- The Server Optional Counter Group is intended for those systems
-- which make distinctions between the different sources of the DNS
-- queries as defined below.
--
-- Objects in this group are implemented on servers which distinguish
-- between queries which originate from the same host as the server,
-- queries from one of an arbitrary group of hosts that are on an
-- access list defined by the server, and queries from hosts that do
-- not fit either of these descriptions.
--
-- The objects found in the Server Counter group are totals.  Thus if
-- one wanted to identify, for example, the number of queries from
-- `remote' hosts which have been given authoritative answers, one
-- would subtract the current values of ServOptCounterFriendsAuthAns
-- and ServOptCounterSelfAuthAns from servCounterAuthAns.
--
-- The purpose of these distinctions is to allow for implementations
-- to group queries and responses on this basis.  One way in which
-- servers may make these distinctions is by looking at the source IP
-- address of the DNS query.  If the source of the query is `your
-- own' then the query should be counted as `yourself' (local host).
-- If the source of the query matches an `access list,' the query
-- came from a friend.  What constitutes an `access list' is
-- implementation dependent and could be as simple as a rule that all
-- hosts on the same IP network as the DNS server are classed
-- `friends.'
--
-- In order to avoid double counting, the following rules apply:
--
-- 1. No host is in more than one of the three groups defined above.
--
-- 2. All queries from the local host are always counted in the
--    `yourself' group regardless of what the access list, if any,
--    says.
--
-- 3. The access list should not define `your friends' in such a way
--    that it includes all hosts.   That is, not everybody is your
--    `friend.'

dnsServOptCounterSelfAuthAns OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from a resolver on the same host for which

            there has been an authoritative answer."
    ::= { dnsServOptCounter 1 }

dnsServOptCounterSelfAuthNoNames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from a resolver on the same host for which
            there has been an authoritative no such name answer
            given."
    ::= { dnsServOptCounter 2 }

dnsServOptCounterSelfAuthNoDataResps OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from a resolver on the same host for which
            there has been an authoritative no such data answer
            (empty answer) made."
    ::= { dnsServOptCounter 3 }

dnsServOptCounterSelfNonAuthDatas OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from a resolver on the same host for which a
            non-authoritative answer (cached data) was made."
    ::= { dnsServOptCounter 4 }

dnsServOptCounterSelfNonAuthNoDatas OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from a resolver on the same host for which a
            `non-authoritative, no such data' response was made
            (empty answer)."
    ::= { dnsServOptCounter 5 }

dnsServOptCounterSelfReferrals OBJECT-TYPE
    SYNTAX      Counter32

    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries the server has processed which
            originated from a resolver on the same host and were
            referred to other servers."
    ::= { dnsServOptCounter 6 }

dnsServOptCounterSelfErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from a resolver on the same host which have
            been answered with errors (RCODEs other than 0 and 3)."
    REFERENCE
            "RFC-1035 section 4.1.1."
    ::= { dnsServOptCounter 7 }

dnsServOptCounterSelfRelNames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests received for names that are only 1
            label long (text form - no internal dots) the server has
            processed which originated from a resolver on the same
            host."
    ::= { dnsServOptCounter 8 }

dnsServOptCounterSelfReqRefusals OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of DNS requests refused by the server which
            originated from a resolver on the same host."
    ::= { dnsServOptCounter 9 }

dnsServOptCounterSelfReqUnparses OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests received which were unparseable and
            which originated from a resolver on the same host."
    ::= { dnsServOptCounter 10 }

dnsServOptCounterSelfOtherErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests which were aborted for other (local)
            server errors and which originated on the same host."
    ::= { dnsServOptCounter 11 }

dnsServOptCounterFriendsAuthAns OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries originating from friends which were
            authoritatively answered.  The definition of friends is
            a locally defined matter."
    ::= { dnsServOptCounter 12 }

dnsServOptCounterFriendsAuthNoNames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries originating from friends, for which
            authoritative `no such name' responses were made.  The
            definition of friends is a locally defined matter."
    ::= { dnsServOptCounter 13 }

dnsServOptCounterFriendsAuthNoDataResps OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries originating from friends for which
            authoritative no such data (empty answer) responses were
            made.  The definition of friends is a locally defined
            matter."
    ::= { dnsServOptCounter 14 }

dnsServOptCounterFriendsNonAuthDatas OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries originating from friends which were
            non-authoritatively answered (cached data). The
            definition of friends is a locally defined matter."

    ::= { dnsServOptCounter 15 }

dnsServOptCounterFriendsNonAuthNoDatas OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of queries originating from friends which were
            non-authoritatively answered with no such data (empty
            answer)."
    ::= { dnsServOptCounter 16 }

dnsServOptCounterFriendsReferrals OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests which originated from friends that
            were referred to other servers.  The definition of
            friends is a locally defined matter."
    ::= { dnsServOptCounter 17 }

dnsServOptCounterFriendsErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests the server has processed which
            originated from friends and were answered with errors
            (RCODE values other than 0 and 3).  The definition of
            friends is a locally defined matter."
    REFERENCE
            "RFC-1035 section 4.1.1."
    ::= { dnsServOptCounter 18 }

dnsServOptCounterFriendsRelNames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests received for names from friends that
            are only 1 label long (text form - no internal dots) the
            server has processed."
    ::= { dnsServOptCounter 19 }

dnsServOptCounterFriendsReqRefusals OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only

    STATUS      current
    DESCRIPTION
            "Number of DNS requests refused by the server which were
            received from `friends'."
    ::= { dnsServOptCounter 20 }

dnsServOptCounterFriendsReqUnparses OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests received which were unparseable and
            which originated from `friends'."
    ::= { dnsServOptCounter 21 }

dnsServOptCounterFriendsOtherErrors OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Number of requests which were aborted for other (local)
            server errors and which originated from `friends'."
    ::= { dnsServOptCounter 22 }


-- Server Zone Group

-- DNS Management Zone Configuration Table

-- This table contains zone configuration information.

dnsServZoneTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF DnsServZoneEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Table of zones for which this name server provides
            information.  Each of the zones may be loaded from stable
            storage via an implementation-specific mechanism or may
            be obtained from another name server via a zone transfer.

            If name server doesn't load any zones, this table is
            empty."
    ::= { dnsServZone 1 }

dnsServZoneEntry OBJECT-TYPE
    SYNTAX      DnsServZoneEntry
    MAX-ACCESS  not-accessible

    STATUS      current
    DESCRIPTION
            "An entry in the name server zone table.  New rows may be
            added either via SNMP or by the name server itself."
    INDEX     { dnsServZoneName,
                dnsServZoneClass }
    ::= { dnsServZoneTable 1 }

DnsServZoneEntry ::=
    SEQUENCE {
        dnsServZoneName
            DnsNameAsIndex,
        dnsServZoneClass
            DnsClass,
        dnsServZoneLastReloadSuccess
            DnsTime,
        dnsServZoneLastReloadAttempt
            DnsTime,
        dnsServZoneLastSourceAttempt
            IpAddress,
        dnsServZoneStatus
            RowStatus,
        dnsServZoneSerial
            Counter32,
        dnsServZoneCurrent
            TruthValue,
        dnsServZoneLastSourceSuccess
            IpAddress
    }

dnsServZoneName OBJECT-TYPE
    SYNTAX      DnsNameAsIndex
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "DNS name of the zone described by this row of the table.
            This is the owner name of the SOA RR that defines the
            top of the zone. This is name is in uppercase:
            characters 'a' through 'z' are mapped to 'A' through 'Z'
            in order to make the lexical ordering useful."
    ::= { dnsServZoneEntry 1 }

dnsServZoneClass OBJECT-TYPE
    SYNTAX      DnsClass
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "DNS class of the RRs in this zone."

    ::= { dnsServZoneEntry 2 }

dnsServZoneLastReloadSuccess OBJECT-TYPE
    SYNTAX      DnsTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Elapsed time in seconds since last successful reload of
            this zone."
    ::= { dnsServZoneEntry 3 }

dnsServZoneLastReloadAttempt OBJECT-TYPE
    SYNTAX      DnsTime
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Elapsed time in seconds since last attempted reload of
            this zone."
    ::= { dnsServZoneEntry 4 }

dnsServZoneLastSourceAttempt OBJECT-TYPE
    SYNTAX      IpAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "IP address of host from which most recent zone transfer
            of this zone was attempted.  This value should match the
            value of dnsServZoneSourceSuccess if the attempt was
            succcessful.  If zone transfer has not been attempted
            within the memory of this name server, this value should
            be 0.0.0.0."
    ::= { dnsServZoneEntry 5 }

dnsServZoneStatus OBJECT-TYPE
    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
            "The status of the information represented in this row of
            the table."
    ::= { dnsServZoneEntry 6 }

dnsServZoneSerial OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Zone serial number (from the SOA RR) of the zone

            represented by this row of the table.  If the zone has
            not been successfully loaded within the memory of this
            name server, the value of this variable is zero."
    ::= { dnsServZoneEntry 7 }

dnsServZoneCurrent OBJECT-TYPE
    SYNTAX      TruthValue
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Whether the server's copy of the zone represented by
            this row of the table is currently valid.  If the zone
            has never been successfully loaded or has expired since
            it was last succesfully loaded, this variable will have
            the value false(2), otherwise this variable will have
            the value true(1)."
    ::= { dnsServZoneEntry 8 }

dnsServZoneLastSourceSuccess OBJECT-TYPE
    SYNTAX      IpAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "IP address of host which was the source of the most
            recent successful zone transfer for this zone.  If
            unknown (e.g., zone has never been successfully
            transfered) or irrelevant (e.g., zone was loaded from
            stable storage), this value should be 0.0.0.0."
    ::= { dnsServZoneEntry 9 }

-- DNS Zone Source Table

dnsServZoneSrcTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF DnsServZoneSrcEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "This table is a list of IP addresses from which the
            server will attempt to load zone information using DNS
            zone transfer operations.  A reload may occur due to SNMP
            operations that create a row in dnsServZoneTable or a
            SET to object dnsServZoneReload.  This table is only
            used when the zone is loaded via zone transfer."
    ::= { dnsServZone 2 }

dnsServZoneSrcEntry OBJECT-TYPE
    SYNTAX      DnsServZoneSrcEntry
    MAX-ACCESS  not-accessible

    STATUS      current
    DESCRIPTION
            "An entry in the name server zone source table."
    INDEX     { dnsServZoneSrcName,
                dnsServZoneSrcClass,
                dnsServZoneSrcAddr }
    ::= { dnsServZoneSrcTable 1 }

DnsServZoneSrcEntry ::=
    SEQUENCE {
        dnsServZoneSrcName
            DnsNameAsIndex,
        dnsServZoneSrcClass
            DnsClass,
        dnsServZoneSrcAddr
            IpAddress,
        dnsServZoneSrcStatus
            RowStatus
    }

dnsServZoneSrcName OBJECT-TYPE
    SYNTAX      DnsNameAsIndex
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "DNS name of the zone to which this entry applies."
    ::= { dnsServZoneSrcEntry 1 }

dnsServZoneSrcClass OBJECT-TYPE
    SYNTAX      DnsClass
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "DNS class of zone to which this entry applies."
    ::= { dnsServZoneSrcEntry 2 }

dnsServZoneSrcAddr OBJECT-TYPE
    SYNTAX      IpAddress
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "IP address of name server host from which this zone
            might be obtainable."
    ::= { dnsServZoneSrcEntry 3 }

dnsServZoneSrcStatus OBJECT-TYPE
    SYNTAX      RowStatus
    MAX-ACCESS  read-create

    STATUS      current
    DESCRIPTION
            "The status of the information represented in this row of
            the table."
    ::= { dnsServZoneSrcEntry 4 }


-- SNMPv2 groups.

dnsServMIBGroups        OBJECT IDENTIFIER ::= { dnsServMIB 2 }

dnsServConfigGroup OBJECT-GROUP
    OBJECTS   { dnsServConfigImplementIdent,
                dnsServConfigRecurs,
                dnsServConfigUpTime,
                dnsServConfigResetTime,
                dnsServConfigReset }
    STATUS      current
    DESCRIPTION
            "A collection of objects providing basic configuration
            control of a DNS name server."
    ::= { dnsServMIBGroups 1 }

dnsServCounterGroup OBJECT-GROUP
    OBJECTS   { dnsServCounterAuthAns,
                dnsServCounterAuthNoNames,
                dnsServCounterAuthNoDataResps,
                dnsServCounterNonAuthDatas,
                dnsServCounterNonAuthNoDatas,
                dnsServCounterReferrals,
                dnsServCounterErrors,
                dnsServCounterRelNames,
                dnsServCounterReqRefusals,
                dnsServCounterReqUnparses,
                dnsServCounterOtherErrors,
                dnsServCounterOpCode,
                dnsServCounterQClass,
                dnsServCounterQType,
                dnsServCounterTransport,
                dnsServCounterRequests,
                dnsServCounterResponses }
    STATUS      current
    DESCRIPTION
            "A collection of objects providing basic instrumentation
            of a DNS name server."
    ::= { dnsServMIBGroups 2 }



dnsServOptCounterGroup OBJECT-GROUP
    OBJECTS   { dnsServOptCounterSelfAuthAns,
                dnsServOptCounterSelfAuthNoNames,
                dnsServOptCounterSelfAuthNoDataResps,
                dnsServOptCounterSelfNonAuthDatas,
                dnsServOptCounterSelfNonAuthNoDatas,
                dnsServOptCounterSelfReferrals,
                dnsServOptCounterSelfErrors,
                dnsServOptCounterSelfRelNames,
                dnsServOptCounterSelfReqRefusals,
                dnsServOptCounterSelfReqUnparses,
                dnsServOptCounterSelfOtherErrors,
                dnsServOptCounterFriendsAuthAns,
                dnsServOptCounterFriendsAuthNoNames,
                dnsServOptCounterFriendsAuthNoDataResps,
                dnsServOptCounterFriendsNonAuthDatas,
                dnsServOptCounterFriendsNonAuthNoDatas,
                dnsServOptCounterFriendsReferrals,
                dnsServOptCounterFriendsErrors,
                dnsServOptCounterFriendsRelNames,
                dnsServOptCounterFriendsReqRefusals,
                dnsServOptCounterFriendsReqUnparses,
                dnsServOptCounterFriendsOtherErrors }
    STATUS      current
    DESCRIPTION
            "A collection of objects providing extended
            instrumentation of a DNS name server."
    ::= { dnsServMIBGroups 3 }

dnsServZoneGroup OBJECT-GROUP
    OBJECTS   { dnsServZoneName,
                dnsServZoneClass,
                dnsServZoneLastReloadSuccess,
                dnsServZoneLastReloadAttempt,
                dnsServZoneLastSourceAttempt,
                dnsServZoneLastSourceSuccess,
                dnsServZoneStatus,
                dnsServZoneSerial,
                dnsServZoneCurrent,
                dnsServZoneSrcName,
                dnsServZoneSrcClass,
                dnsServZoneSrcAddr,
                dnsServZoneSrcStatus }
    STATUS      current
    DESCRIPTION
            "A collection of objects providing configuration control
            of a DNS name server which loads authoritative zones."
    ::= { dnsServMIBGroups 4 }

-- Compliances.

dnsServMIBCompliances OBJECT IDENTIFIER ::= { dnsServMIB 3 }

dnsServMIBCompliance MODULE-COMPLIANCE
    STATUS      current
    DESCRIPTION
            "The compliance statement for agents implementing the DNS
            name server MIB extensions."
    MODULE -- This MIB module
        MANDATORY-GROUPS { dnsServConfigGroup, dnsServCounterGroup }
        GROUP   dnsServOptCounterGroup
        DESCRIPTION
            "The server optional counter group is unconditionally
            optional."
        GROUP   dnsServZoneGroup
        DESCRIPTION
            "The server zone group is mandatory for any name server
            that acts as an authoritative server for any DNS zone."
        OBJECT  dnsServConfigRecurs
        MIN-ACCESS      read-only
        DESCRIPTION
            "This object need not be writable."
        OBJECT  dnsServConfigReset
        MIN-ACCESS      read-only
        DESCRIPTION
            "This object need not be writable."
    ::= { dnsServMIBCompliances 1 }

END