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DNS-RESOLVER-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, IpAddress, Counter32, Integer32
FROM SNMPv2-SMI
TEXTUAL-CONVENTION, RowStatus, DisplayString
FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
dns, DnsName, DnsNameAsIndex, DnsClass, DnsType, DnsQClass,
DnsQType, DnsTime, DnsOpCode, DnsRespCode
FROM DNS-SERVER-MIB;
-- DNS Resolver MIB
dnsResMIB MODULE-IDENTITY
LAST-UPDATED "9401282250Z"
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
E-mail: saperia@zko.dec.com"
DESCRIPTION
"The MIB module for entities implementing the client
(resolver) side of the Domain Name System (DNS)
protocol."
::= { dns 2 }
dnsResMIBObjects OBJECT IDENTIFIER ::= { dnsResMIB 1 }
-- (Old-style) groups in the DNS resolver MIB.
dnsResConfig OBJECT IDENTIFIER ::= { dnsResMIBObjects 1 }
dnsResCounter OBJECT IDENTIFIER ::= { dnsResMIBObjects 2 }
dnsResLameDelegation OBJECT IDENTIFIER ::= { dnsResMIBObjects 3 }
dnsResCache OBJECT IDENTIFIER ::= { dnsResMIBObjects 4 }
dnsResNCache OBJECT IDENTIFIER ::= { dnsResMIBObjects 5 }
dnsResOptCounter OBJECT IDENTIFIER ::= { dnsResMIBObjects 6 }
-- Resolver Configuration Group
dnsResConfigImplementIdent OBJECT-TYPE
SYNTAX DisplayString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The implementation identification string for the
resolver software in use on the system, for example;
`RES-2.1'"
::= { dnsResConfig 1 }
dnsResConfigService OBJECT-TYPE
SYNTAX INTEGER { recursiveOnly(1),
iterativeOnly(2),
recursiveAndIterative(3) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Kind of DNS resolution service provided:
recursiveOnly(1) indicates a stub resolver.
iterativeOnly(2) indicates a normal full service
resolver.
recursiveAndIterative(3) indicates a full-service
resolver which performs a mix of recursive and iterative
queries."
::= { dnsResConfig 2 }
dnsResConfigMaxCnames OBJECT-TYPE
SYNTAX INTEGER (0..2147483647)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Limit on how many CNAMEs the resolver should allow
before deciding that there's a CNAME loop. Zero means
that resolver has no explicit CNAME limit."
REFERENCE
"RFC-1035 section 7.1."
::= { dnsResConfig 3 }
-- DNS Resolver Safety Belt Table
dnsResConfigSbeltTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResConfigSbeltEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of safety belt information used by the resolver
when it hasn't got any better idea of where to send a
query, such as when the resolver is booting or is a stub
resolver."
::= { dnsResConfig 4 }
dnsResConfigSbeltEntry OBJECT-TYPE
SYNTAX DnsResConfigSbeltEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the resolver's Sbelt table.
Rows may be created or deleted at any time by the DNS
resolver and by SNMP SET requests. Whether the values
changed via SNMP are saved in stable storage across
`reset' operations is implementation-specific."
INDEX { dnsResConfigSbeltAddr,
dnsResConfigSbeltSubTree,
dnsResConfigSbeltClass }
::= { dnsResConfigSbeltTable 1 }
DnsResConfigSbeltEntry ::=
SEQUENCE {
dnsResConfigSbeltAddr
IpAddress,
dnsResConfigSbeltName
DnsName,
dnsResConfigSbeltRecursion
INTEGER,
dnsResConfigSbeltPref
INTEGER,
dnsResConfigSbeltSubTree
DnsNameAsIndex,
dnsResConfigSbeltClass
DnsClass,
dnsResConfigSbeltStatus
RowStatus
}
dnsResConfigSbeltAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IP address of the Sbelt name server identified by
this row of the table."
::= { dnsResConfigSbeltEntry 1 }
dnsResConfigSbeltName OBJECT-TYPE
SYNTAX DnsName
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The DNS name of a Sbelt nameserver identified by this
row of the table. A zero-length string indicates that
the name is not known by the resolver."
::= { dnsResConfigSbeltEntry 2 }
dnsResConfigSbeltRecursion OBJECT-TYPE
SYNTAX INTEGER { iterative(1),
recursive(2),
recursiveAndIterative(3) }
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Kind of queries resolver will be sending to the name
server identified in this row of the table:
iterative(1) indicates that resolver will be directing
iterative queries to this name server (RD bit turned
off).
recursive(2) indicates that resolver will be directing
recursive queries to this name server (RD bit turned
on).
recursiveAndIterative(3) indicates that the resolver
will be directing both recursive and iterative queries
to the server identified in this row of the table."
::= { dnsResConfigSbeltEntry 3 }
dnsResConfigSbeltPref OBJECT-TYPE
SYNTAX INTEGER (0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This value identifies the preference for the name server
identified in this row of the table. The lower the
value, the more desirable the resolver considers this
server."
::= { dnsResConfigSbeltEntry 4 }
dnsResConfigSbeltSubTree OBJECT-TYPE
SYNTAX DnsNameAsIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Queries sent to the name server identified by this row
of the table are limited to those for names in the name
subtree identified by this variable. If no such
limitation applies, the value of this variable is the
name of the root domain (a DNS name consisting of a
single zero octet)."
::= { dnsResConfigSbeltEntry 5 }
dnsResConfigSbeltClass OBJECT-TYPE
SYNTAX DnsClass
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The class of DNS queries that will be sent to the server
identified by this row of the table."
::= { dnsResConfigSbeltEntry 6 }
dnsResConfigSbeltStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Row status column for this row of the Sbelt table."
::= { dnsResConfigSbeltEntry 7 }
dnsResConfigUpTime OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If the resolver 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 0."
::= { dnsResConfig 5 }
dnsResConfigResetTime OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"If the resolver 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 resolver was
`reset.' For software that does not have persistence or
does not support a `reset' operation, this value will be
zero."
::= { dnsResConfig 6 }
dnsResConfigReset 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
resolver state. When set to reset(2), any persistant
resolver state (such as a process) is reinitialized as if
the resolver 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) - resolver in some unknown state;
initializing(3) - resolver (re)initializing;
running(4) - resolver currently running."
::= { dnsResConfig 7 }
-- Resolver Counters Group
-- Resolver Counter Table
dnsResCounterByOpcodeTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResCounterByOpcodeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of the current count of resolver queries and
answers."
::= { dnsResCounter 3 }
dnsResCounterByOpcodeEntry OBJECT-TYPE
SYNTAX DnsResCounterByOpcodeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entry in the resolver counter table. Entries are
indexed by DNS OpCode."
INDEX { dnsResCounterByOpcodeCode }
::= { dnsResCounterByOpcodeTable 1 }
DnsResCounterByOpcodeEntry ::=
SEQUENCE {
dnsResCounterByOpcodeCode
DnsOpCode,
dnsResCounterByOpcodeQueries
Counter32,
dnsResCounterByOpcodeResponses
Counter32
}
dnsResCounterByOpcodeCode OBJECT-TYPE
SYNTAX DnsOpCode
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index to this table. The OpCodes that have already
been defined are found in RFC-1035."
REFERENCE
"RFC-1035 section 4.1.1."
::= { dnsResCounterByOpcodeEntry 1 }
dnsResCounterByOpcodeQueries OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of queries that have sent out by the
resolver since initialization for the OpCode which is
the index to this row of the table."
::= { dnsResCounterByOpcodeEntry 2 }
dnsResCounterByOpcodeResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of responses that have been received by the
resolver since initialization for the OpCode which is
the index to this row of the table."
::= { dnsResCounterByOpcodeEntry 3 }
-- Resolver Response Code Counter Table
dnsResCounterByRcodeTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResCounterByRcodeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of the current count of responses to resolver
queries."
::= { dnsResCounter 4 }
dnsResCounterByRcodeEntry OBJECT-TYPE
SYNTAX DnsResCounterByRcodeEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entry in the resolver response table. Entries are
indexed by DNS response code."
INDEX { dnsResCounterByRcodeCode }
::= { dnsResCounterByRcodeTable 1 }
DnsResCounterByRcodeEntry ::=
SEQUENCE {
dnsResCounterByRcodeCode
DnsRespCode,
dnsResCounterByRcodeResponses
Counter32
}
dnsResCounterByRcodeCode OBJECT-TYPE
SYNTAX DnsRespCode
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index to this table. The Response Codes that have
already been defined are found in RFC-1035."
REFERENCE
"RFC-1035 section 4.1.1."
::= { dnsResCounterByRcodeEntry 1 }
dnsResCounterByRcodeResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses the resolver has received for the
response code value which identifies this row of the
table."
::= { dnsResCounterByRcodeEntry 2 }
-- Additional DNS Resolver Counter Objects
dnsResCounterNonAuthDataResps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of requests made by the resolver for which a
non-authoritative answer (cached data) was received."
::= { dnsResCounter 5 }
dnsResCounterNonAuthNoDataResps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of requests made by the resolver for which a
non-authoritative answer - no such data response (empty
answer) was received."
::= { dnsResCounter 6 }
dnsResCounterMartians OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses received which were received from
servers that the resolver does not think it asked."
::= { dnsResCounter 7 }
dnsResCounterRecdResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses received to all queries."
::= { dnsResCounter 8 }
dnsResCounterUnparseResps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses received which were unparseable."
::= { dnsResCounter 9 }
dnsResCounterFallbacks OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the resolver had to fall back to its
seat belt information."
::= { dnsResCounter 10 }
-- Lame Delegation Group
dnsResLameDelegationOverflows OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of times the resolver attempted to add an entry
to the Lame Delegation table but was unable to for some
reason such as space constraints."
::= { dnsResLameDelegation 1 }
-- Lame Delegation Table
dnsResLameDelegationTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResLameDelegationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of name servers returning lame delegations.
A lame delegation has occured when a parent zone
delegates authority for a child zone to a server that
appears not to think that it is authoritative for the
child zone in question."
::= { dnsResLameDelegation 2 }
dnsResLameDelegationEntry OBJECT-TYPE
SYNTAX DnsResLameDelegationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Entry in lame delegation table. Only the resolver may
create rows in this table. SNMP SET requests may be used
to delete rows."
INDEX { dnsResLameDelegationSource,
dnsResLameDelegationName,
dnsResLameDelegationClass }
::= { dnsResLameDelegationTable 1 }
DnsResLameDelegationEntry ::=
SEQUENCE {
dnsResLameDelegationSource
IpAddress,
dnsResLameDelegationName
DnsNameAsIndex,
dnsResLameDelegationClass
DnsClass,
dnsResLameDelegationCounts
Counter32,
dnsResLameDelegationStatus
RowStatus
}
dnsResLameDelegationSource OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Source of lame delegation."
::= { dnsResLameDelegationEntry 1 }
dnsResLameDelegationName OBJECT-TYPE
SYNTAX DnsNameAsIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"DNS name for which lame delegation was received."
::= { dnsResLameDelegationEntry 2 }
dnsResLameDelegationClass OBJECT-TYPE
SYNTAX DnsClass
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"DNS class of received lame delegation."
::= { dnsResLameDelegationEntry 3 }
dnsResLameDelegationCounts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"How many times this lame delegation has been received."
::= { dnsResLameDelegationEntry 4 }
dnsResLameDelegationStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Status column for the lame delegation table. Since only
the agent (DNS resolver) creates rows in this table, the
only values that a manager may write to this variable
are active(1) and destroy(6)."
::= { dnsResLameDelegationEntry 5 }
-- Resolver Cache Group
dnsResCacheStatus OBJECT-TYPE
SYNTAX INTEGER { enabled(1), disabled(2), clear(3) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Status/action for the resolver's cache.
enabled(1) means that the use of the cache is allowed.
Query operations can return this state.
disabled(2) means that the cache is not being used.
Query operations can return this state.
Setting this variable to clear(3) deletes the entire
contents of the resolver's cache, but does not otherwise
change the resolver's state. The status will retain its
previous value from before the clear operation (i.e.,
enabled(1) or disabled(2)). The value of clear(3) can
NOT be returned by a query operation."
::= { dnsResCache 1 }
dnsResCacheMaxTTL OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Maximum Time-To-Live for RRs in this cache. If the
resolver does not implement a TTL ceiling, the value of
this field should be zero."
::= { dnsResCache 2 }
dnsResCacheGoodCaches OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of RRs the resolver has cached successfully."
::= { dnsResCache 3 }
dnsResCacheBadCaches OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of RRs the resolver has refused to cache because
they appear to be dangerous or irrelevant. E.g., RRs
with suspiciously high TTLs, unsolicited root
information, or that just don't appear to be relevant to
the question the resolver asked."
::= { dnsResCache 4 }
-- Resolver Cache Table
dnsResCacheRRTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResCacheRREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about all the resource
records currently in the resolver's cache."
::= { dnsResCache 5 }
dnsResCacheRREntry OBJECT-TYPE
SYNTAX DnsResCacheRREntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the resolvers's cache. Rows may be created
only by the resolver. SNMP SET requests may be used to
delete rows."
INDEX { dnsResCacheRRName,
dnsResCacheRRClass,
dnsResCacheRRType,
dnsResCacheRRIndex }
::= { dnsResCacheRRTable 1 }
DnsResCacheRREntry ::=
SEQUENCE {
dnsResCacheRRName
DnsNameAsIndex,
dnsResCacheRRClass
DnsClass,
dnsResCacheRRType
DnsType,
dnsResCacheRRTTL
DnsTime,
dnsResCacheRRElapsedTTL
DnsTime,
dnsResCacheRRSource
IpAddress,
dnsResCacheRRData
OCTET STRING,
dnsResCacheRRStatus
RowStatus,
dnsResCacheRRIndex
Integer32,
dnsResCacheRRPrettyName
DnsName
}
dnsResCacheRRName OBJECT-TYPE
SYNTAX DnsNameAsIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Owner name of the Resource Record in the cache which is
identified in this row of the table. As described in
RFC-1034, the owner of the record is the domain name
were the RR is found."
REFERENCE
"RFC-1034 section 3.6."
::= { dnsResCacheRREntry 1 }
dnsResCacheRRClass OBJECT-TYPE
SYNTAX DnsClass
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"DNS class of the Resource Record in the cache which is
identified in this row of the table."
::= { dnsResCacheRREntry 2 }
dnsResCacheRRType OBJECT-TYPE
SYNTAX DnsType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"DNS type of the Resource Record in the cache which is
identified in this row of the table."
::= { dnsResCacheRREntry 3 }
dnsResCacheRRTTL OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Time-To-Live of RR in DNS cache. This is the initial
TTL value which was received with the RR when it was
originally received."
::= { dnsResCacheRREntry 4 }
dnsResCacheRRElapsedTTL OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Elapsed seconds since RR was received."
::= { dnsResCacheRREntry 5 }
dnsResCacheRRSource OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Host from which RR was received, 0.0.0.0 if unknown."
::= { dnsResCacheRREntry 6 }
dnsResCacheRRData OBJECT-TYPE
SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"RDATA portion of a cached RR. The value is in the
format defined for the particular DNS class and type of
the resource record."
REFERENCE
"RFC-1035 section 3.2.1."
::= { dnsResCacheRREntry 7 }
dnsResCacheRRStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Status column for the resolver cache table. Since only
the agent (DNS resolver) creates rows in this table, the
only values that a manager may write to this variable
are active(1) and destroy(6)."
::= { dnsResCacheRREntry 8 }
dnsResCacheRRIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A value which makes entries in the table unique when the
other index values (dnsResCacheRRName,
dnsResCacheRRClass, and dnsResCacheRRType) do not
provide a unique index."
::= { dnsResCacheRREntry 9 }
dnsResCacheRRPrettyName OBJECT-TYPE
SYNTAX DnsName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Name of the RR at this row in the table. This is
identical to the dnsResCacheRRName variable, except that
character case is preserved in this variable, per DNS
conventions."
REFERENCE
"RFC-1035 section 2.3.3."
::= { dnsResCacheRREntry 10 }
-- Resolver Negative Cache Group
dnsResNCacheStatus OBJECT-TYPE
SYNTAX INTEGER { enabled(1), disabled(2), clear(3) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Status/action for the resolver's negative response
cache.
enabled(1) means that the use of the negative response
cache is allowed. Query operations can return this
state.
disabled(2) means that the negative response cache is
not being used. Query operations can return this state.
Setting this variable to clear(3) deletes the entire
contents of the resolver's negative response cache. The
status will retain its previous value from before the
clear operation (i.e., enabled(1) or disabled(2)). The
value of clear(3) can NOT be returned by a query
operation."
::= { dnsResNCache 1 }
dnsResNCacheMaxTTL OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Maximum Time-To-Live for cached authoritative errors.
If the resolver does not implement a TTL ceiling, the
value of this field should be zero."
::= { dnsResNCache 2 }
dnsResNCacheGoodNCaches OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of authoritative errors the resolver has cached
successfully."
::= { dnsResNCache 3 }
dnsResNCacheBadNCaches OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of authoritative errors the resolver would have
liked to cache but was unable to because the appropriate
SOA RR was not supplied or looked suspicious."
REFERENCE
"RFC-1034 section 4.3.4."
::= { dnsResNCache 4 }
-- Resolver Negative Cache Table
dnsResNCacheErrTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResNCacheErrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The resolver's negative response cache. This table
contains information about authoritative errors that
have been cached by the resolver."
::= { dnsResNCache 5 }
dnsResNCacheErrEntry OBJECT-TYPE
SYNTAX DnsResNCacheErrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the resolver's negative response cache
table. Only the resolver can create rows. SNMP SET
requests may be used to delete rows."
INDEX { dnsResNCacheErrQName,
dnsResNCacheErrQClass,
dnsResNCacheErrQType,
dnsResNCacheErrIndex }
::= { dnsResNCacheErrTable 1 }
DnsResNCacheErrEntry ::=
SEQUENCE {
dnsResNCacheErrQName
DnsNameAsIndex,
dnsResNCacheErrQClass
DnsQClass,
dnsResNCacheErrQType
DnsQType,
dnsResNCacheErrTTL
DnsTime,
dnsResNCacheErrElapsedTTL
DnsTime,
dnsResNCacheErrSource
IpAddress,
dnsResNCacheErrCode
INTEGER,
dnsResNCacheErrStatus
RowStatus,
dnsResNCacheErrIndex
Integer32,
dnsResNCacheErrPrettyName
DnsName
}
dnsResNCacheErrQName OBJECT-TYPE
SYNTAX DnsNameAsIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"QNAME associated with a cached authoritative error."
REFERENCE
"RFC-1034 section 3.7.1."
::= { dnsResNCacheErrEntry 1 }
dnsResNCacheErrQClass OBJECT-TYPE
SYNTAX DnsQClass
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"DNS QCLASS associated with a cached authoritative
error."
::= { dnsResNCacheErrEntry 2 }
dnsResNCacheErrQType OBJECT-TYPE
SYNTAX DnsQType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"DNS QTYPE associated with a cached authoritative error."
::= { dnsResNCacheErrEntry 3 }
dnsResNCacheErrTTL OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Time-To-Live of a cached authoritative error at the time
of the error, it should not be decremented by the number
of seconds since it was received. This should be the
TTL as copied from the MINIMUM field of the SOA that
accompanied the authoritative error, or a smaller value
if the resolver implements a ceiling on negative
response cache TTLs."
REFERENCE
"RFC-1034 section 4.3.4."
::= { dnsResNCacheErrEntry 4 }
dnsResNCacheErrElapsedTTL OBJECT-TYPE
SYNTAX DnsTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Elapsed seconds since authoritative error was received."
::= { dnsResNCacheErrEntry 5 }
dnsResNCacheErrSource OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Host which sent the authoritative error, 0.0.0.0 if
unknown."
::= { dnsResNCacheErrEntry 6 }
dnsResNCacheErrCode OBJECT-TYPE
SYNTAX INTEGER { nonexistantName(1), noData(2), other(3) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The authoritative error that has been cached:
nonexistantName(1) indicates an authoritative name error
(RCODE = 3).
noData(2) indicates an authoritative response with no
error (RCODE = 0) and no relevant data.
other(3) indicates some other cached authoritative
error. At present, no such errors are known to exist."
::= { dnsResNCacheErrEntry 7 }
dnsResNCacheErrStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Status column for the resolver negative response cache
table. Since only the agent (DNS resolver) creates rows
in this table, the only values that a manager may write
to this variable are active(1) and destroy(6)."
::= { dnsResNCacheErrEntry 8 }
dnsResNCacheErrIndex OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A value which makes entries in the table unique when the
other index values (dnsResNCacheErrQName,
dnsResNCacheErrQClass, and dnsResNCacheErrQType) do not
provide a unique index."
::= { dnsResNCacheErrEntry 9 }
dnsResNCacheErrPrettyName OBJECT-TYPE
SYNTAX DnsName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"QNAME associated with this row in the table. This is
identical to the dnsResNCacheErrQName variable, except
that character case is preserved in this variable, per
DNS conventions."
REFERENCE
"RFC-1035 section 2.3.3."
::= { dnsResNCacheErrEntry 10 }
-- Resolver Optional Counters Group
dnsResOptCounterReferals OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of responses which were received from servers
redirecting query to another server."
::= { dnsResOptCounter 1 }
dnsResOptCounterRetrans OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number requests retransmitted for all reasons."
::= { dnsResOptCounter 2 }
dnsResOptCounterNoResponses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of queries that were retransmitted because of no
response."
::= { dnsResOptCounter 3 }
dnsResOptCounterRootRetrans OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of queries that were retransmitted that were to
root servers."
::= { dnsResOptCounter 4 }
dnsResOptCounterInternals OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of requests internally generated by the
resolver."
::= { dnsResOptCounter 5 }
dnsResOptCounterInternalTimeOuts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of requests internally generated which timed
out."
::= { dnsResOptCounter 6 }
-- SNMPv2 groups.
dnsResMIBGroups OBJECT IDENTIFIER ::= { dnsResMIB 2 }
dnsResConfigGroup OBJECT-GROUP
OBJECTS { dnsResConfigImplementIdent,
dnsResConfigService,
dnsResConfigMaxCnames,
dnsResConfigSbeltAddr,
dnsResConfigSbeltName,
dnsResConfigSbeltRecursion,
dnsResConfigSbeltPref,
dnsResConfigSbeltSubTree,
dnsResConfigSbeltClass,
dnsResConfigSbeltStatus,
dnsResConfigUpTime,
dnsResConfigResetTime }
STATUS current
DESCRIPTION
"A collection of objects providing basic configuration
information for a DNS resolver implementation."
::= { dnsResMIBGroups 1 }
dnsResCounterGroup OBJECT-GROUP
OBJECTS { dnsResCounterByOpcodeCode,
dnsResCounterByOpcodeQueries,
dnsResCounterByOpcodeResponses,
dnsResCounterByRcodeCode,
dnsResCounterByRcodeResponses,
dnsResCounterNonAuthDataResps,
dnsResCounterNonAuthNoDataResps,
dnsResCounterMartians,
dnsResCounterRecdResponses,
dnsResCounterUnparseResps,
dnsResCounterFallbacks }
STATUS current
DESCRIPTION
"A collection of objects providing basic instrumentation
of a DNS resolver implementation."
::= { dnsResMIBGroups 2 }
dnsResLameDelegationGroup OBJECT-GROUP
OBJECTS { dnsResLameDelegationOverflows,
dnsResLameDelegationSource,
dnsResLameDelegationName,
dnsResLameDelegationClass,
dnsResLameDelegationCounts,
dnsResLameDelegationStatus }
STATUS current
DESCRIPTION
"A collection of objects providing instrumentation of
`lame delegation' failures."
::= { dnsResMIBGroups 3 }
dnsResCacheGroup OBJECT-GROUP
OBJECTS { dnsResCacheStatus,
dnsResCacheMaxTTL,
dnsResCacheGoodCaches,
dnsResCacheBadCaches,
dnsResCacheRRName,
dnsResCacheRRClass,
dnsResCacheRRType,
dnsResCacheRRTTL,
dnsResCacheRRElapsedTTL,
dnsResCacheRRSource,
dnsResCacheRRData,
dnsResCacheRRStatus,
dnsResCacheRRIndex,
dnsResCacheRRPrettyName }
STATUS current
DESCRIPTION
"A collection of objects providing access to and control
of a DNS resolver's cache."
::= { dnsResMIBGroups 4 }
dnsResNCacheGroup OBJECT-GROUP
OBJECTS { dnsResNCacheStatus,
dnsResNCacheMaxTTL,
dnsResNCacheGoodNCaches,
dnsResNCacheBadNCaches,
dnsResNCacheErrQName,
dnsResNCacheErrQClass,
dnsResNCacheErrQType,
dnsResNCacheErrTTL,
dnsResNCacheErrElapsedTTL,
dnsResNCacheErrSource,
dnsResNCacheErrCode,
dnsResNCacheErrStatus,
dnsResNCacheErrIndex,
dnsResNCacheErrPrettyName }
STATUS current
DESCRIPTION
"A collection of objects providing access to and control
of a DNS resolver's negative response cache."
::= { dnsResMIBGroups 5 }
dnsResOptCounterGroup OBJECT-GROUP
OBJECTS { dnsResOptCounterReferals,
dnsResOptCounterRetrans,
dnsResOptCounterNoResponses,
dnsResOptCounterRootRetrans,
dnsResOptCounterInternals,
dnsResOptCounterInternalTimeOuts }
STATUS current
DESCRIPTION
"A collection of objects providing further
instrumentation applicable to many but not all DNS
resolvers."
::= { dnsResMIBGroups 6 }
-- Compliances.
dnsResMIBCompliances OBJECT IDENTIFIER ::= { dnsResMIB 3 }
dnsResMIBCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for agents implementing the DNS
resolver MIB extensions."
MODULE -- This MIB module
MANDATORY-GROUPS { dnsResConfigGroup, dnsResCounterGroup }
GROUP dnsResCacheGroup
DESCRIPTION
"The resolver cache group is mandatory for resolvers that
implement a cache."
GROUP dnsResNCacheGroup
DESCRIPTION
"The resolver negative cache group is mandatory for
resolvers that implement a negative response cache."
GROUP dnsResLameDelegationGroup
DESCRIPTION
"The lame delegation group is unconditionally optional."
GROUP dnsResOptCounterGroup
DESCRIPTION
"The optional counters group is unconditionally
optional."
OBJECT dnsResConfigMaxCnames
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResConfigSbeltName
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResConfigSbeltRecursion
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResConfigSbeltPref
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResConfigReset
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResCacheStatus
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResCacheMaxTTL
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResNCacheStatus
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
OBJECT dnsResNCacheMaxTTL
MIN-ACCESS read-only
DESCRIPTION
"This object need not be writable."
::= { dnsResMIBCompliances 1 }
END