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