Internet Draft - DNS MIB - June 30, 1992
DNS MIB Extensions
30-June-1992
DNS Working Group
Jon Saperia
Digital Equipment Corporation
saperia@tcpjon.ogo.dec.com
Status of this Memo
This document is an Internet Draft. Internet Drafts are working
documents of the Internet Engineering Task Force (IETF), its
Areas, and its Working Groups. Note that other groups may also
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Drafts are draft documents valid for a maximum of six months.
Internet Drafts may be updated, replaced, or obsoleted by other
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abstract listing contained in each Internet Draft directory to
learn the current status of this or any other Internet Draft.
This draft document will be submitted to the RFC editor as
a proposed extension to the SNMP MIB. Distribution of this
document is unlimited. Please send comments or corrections to
the editor.
Abstract
This memo defines a set of DNS (Domain Name System) exten-
sions that have been created for the Internet MIB. When used
in conjunction with the Structure of Management Information (RFC
1155), the Management Information Base for Network Management
of TCP/IP-based internets (RFC 1213) and the Simple Network
Management Protocol (RFC 1157), it will be possible to provide
Internet Draft - DNS MIB - June 30, 1992
integrated network management of DNS client and server soft-
ware in standard TCP/IP based environments. This document was
produced by the DNS working group.
Digital Equipment Corporation
Maynard, Massachusetts
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CONTENTS
1 Introduction......................................... 1
2 Selected Objects..................................... 1
3 Objects.............................................. 2
3.1 Format of Definitions............................. 3
3.2 Textual Conventions............................... 4
4 Object Definitions................................... 4
5 Acknowledgements..................................... 63
6 References........................................... 63
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1 Introduction
With the adoption of The Simple Network Management Protocol (RFC
1157), the Management Information Base for network management of
TCP/IP-based internets (RFC 1213), and the Structure of Manage-
ment Information (RFC 1155) by the Internet, and a large number
of vendor implementations of these standards in commercially
available products, it became possible to provide a higher level
of effective network management in TCP/IP-based internets than
previously available. With the growth in the use of these stan-
dards, it has become possible to consider the management of
other elements of the infrastructure beyond the basic TCP/IP
protocols. A key element of the TCP/IP infrastructure is the
DNS.
Up to this point there has been no mechanism to integrate the
management of the DNS with SNMP-based managers. This memo pro-
vides the mechanisms by which IP-based management stations can
effectively manage DNS client and server software in an inte-
grated fashion through the use of the standard Internet SMI, MIB
and Simple Network Management Protocol.
New DNS objects have been defined to be used in conjunction
with the Internet MIB to allow access and control of these new
objects by the Internet community.
2 Selected Objects
The objects included in this memo have been created from infor-
mation contained in the relevant DNS related RFCs which include:
Domain Administrators Guide (RFC 1032), Domain Administrators
Operations Guide (RFC 1033) Domain Names - Concepts and Facili-
ties (RFC 1034), Domain Names - Implementation and Specification
(RFC 1035), and Requirements for Internet Hosts - Application
and Support (RFC 1123). In addition, objects have been created
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based on expected operational need and from the example of ex-
isting DNS specific tools. These objects have be ordered into
groups as follows:
o General Configuration Group
o Resolver Configuration Group
o Server Configuration Group
o Resolver Counters Group
o Server Counters Group
o Records Group
o Resolver Cache Group
o Resolver Negative Cache Group
o Resolver Statistics Group
o Server Management Group
Many of the objects defined in this memo have been created from
information contained in existing configuration files used by
many DNS implementations. This information has been converted
into a standard form using the Internet Standard SMI defined in
RFC 1155.
3 Objects
The objects in this memo are described using the standard Inter-
net SMI and BER of RFC 1155. Each object description includes
the objects name, its syntax and encoding. Just as with objects
supported in the MIB (RFC 1156), an object name is identified
with an object identifier which has been administratively as-
signed. This identifies an Object Type. When an object type
is combined with a specific instance - the particular object
is uniquely identified. Use of Object Descriptors in this memo
is consistent with that of RFC 1156 - meaning that they are
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text strings meant to be read by humans. The descriptors have
been created from a variety of sources. For the most part, the
descriptions are influenced by by the DNS related RFCs noted
above. For example, the descriptors for counters used for the
various types of queries of DNS records are influenced by the
definitions used for the various record types found in Domain
Concepts and Facilities - RFC 1034.
3.1 Format of Definitions
An object in this memo is specified by five fields of informa-
tion: Object, Syntax, Definition, Access, and Status.
The OBJECT is a textual name (OBJECT DESCRIPTOR) for that ob-
ject type combined with an administratively obtained OBJECT
IDENTIFIER.
SYNTAX : For each object type, its abstract syntax is presented
using the ASN.1 specified in RFC 1155.
DEFINITION: A general description of the object type.
ACCESS : The standard access keywords supported in RFC 1156 are
used. The keywords used in this MIB are: read-only, read-write,
and, not-accessible.
STATUS : The status field is used to describe with a single
keyword whether the object type is mandatory or optional. Status
keywords of obsolete and deprecated are not used in this memo
since this is the first version of the DNS MIB.
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3.2 Textual Conventions
Several datatypes have been introduced as a textual conven-
tions in this DNS MIB document. These additions will facilitate
the common understanding of information used by the DNS. No
changes to the SMI or the SNMP are necessary to support these
conventions which are described in 4.0 (Object Definitions).
4 Object Definitions
RFCxxxx-dnsMIB
DEFINITIONS ::= BEGIN
IMPORTS
mgmt, OBJECT-TYPE, NetworkAddress, IpAddress,
Counter, Gauge, TimeTicks
FROM RFC1155-SMI
DisplayString
FROM RFC1213;
-- DNS MIB
dns OBJECT IDENTIFIER ::= { experimental xx }
-- textual conventions
DnsDate ::= DisplayString
-- This data type is intended to provide a consistent
-- method of reporting date information. The first four
-- octets represent the year, the next two month of the year
-- expressed numerically, the next four octets represent the day
-- followed by hour of the day using a 24 hour clock followed by a
-- decimal point. The next two octets represent tenths and
-- hundreths of a second. The final 5 octets provide a mechanism
-- to relate the host's time to Coordinated Universal Time. Tuesday
-- May 26, 1992 at 1:30 PM EDT would be represented as:
-- 199205261330.00-500.
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DnsName ::= OCTET STRING
-- A DNS name is a sequence of octets with internal length encoding.
-- While it is often the case that the printed form of a DNS name is
-- a dotted-format Internet hostname, this is not always the case.
-- All occurrences of DNS names in this MIB us the internal format
-- used by the DNS protocols embedded within an OCTET STRING.
DnsClass ::= INTEGER (0..65535)
-- 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 types of Class records to be defined.
-- Existing classes are listed in RFC 1035.
DnsType ::= INTEGER (0..65535)
-- 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 types are listed in RFC 1035.
DnsQClass ::= INTEGER (0..65535)
-- 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 types of QClass records to be defined.
-- Existing Q classes are listed in RFC 1035.
DnsQType ::= INTEGER (0..65535)
-- 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 record types to be defined.
-- Existing QTypes are listed in RFC 1035.
DnsTime ::= INTEGER
-- DnsTime values are 32-bit unsigned integers which measure time in
-- seconds.
DnsValid ::= INTEGER { valid (1), clear (2) }
-- Many of the tables in this MIB have as one of their columns, an
-- object which can be set to a value of 2 to delete that
-- row of the table. If a read operation is performed on this
-- object, a value of 1 is returned to indicate a valid row in the
-- table.
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-- groups in the dns mib
dnsGenConfig OBJECT IDENTIFIER ::= { dns 1 }
dnsResConfig OBJECT IDENTIFIER ::= { dns 2 }
dnsServerConfig OBJECT IDENTIFIER ::= { dns 3 }
dnsResCounters OBJECT IDENTIFIER ::= { dns 4 }
dnsServerCounters OBJECT IDENTIFIER ::= { dns 5 }
dnsRecords OBJECT IDENTIFIER ::= { dns 6 }
dnsResCache OBJECT IDENTIFIER ::= { dns 7 }
dnsResNCache OBJECT IDENTIFIER ::= { dns 8 }
dnsResStats OBJECT IDENTIFIER ::= { dns 9 }
dnsServerManagement OBJECT IDENTIFIER ::= { dns 10 }
-- General Configuration Group
-- The implementation of the General Configuration group is
-- mandatory for all systems.
dnsGenConfigDnsUse OBJECT-TYPE
SYNTAX INTEGER {
primary (1),
not_primary (2),
not_used (3)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"A value of 1 indicates that the DNS is used as the
primary mechanism for name resolution on this system.
A 2 indicates that some other mechanism is used as the
primary mechanism for name resolution and that the DNS
is used as a back-up. A value of 3 indicates that DNS
is not used for name resolution."
::= { dnsGenConfig 1 }
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-- Resolver Configuration Group
-- The implementation of the Resolver Configuration group is
-- mandatory for all systems which implement any resolver software
-- functions.
dnsResConfigId OBJECT-TYPE
SYNTAX DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Name and version identification of DNS resolver software "
::= { dnsResConfig 1 }
dnsResConfigService OBJECT-TYPE
SYNTAX INTEGER {
recursive-only (1),
iterative-only (2),
recursive-and-iterative (3)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Kind of DNS resolution service provided.
RECURSIVE-ONLY is a stub resolver.
ITERATIVE-ONLY is a normal full service resolver.
RECURSIVE-AND-ITERATIVE is a full service resolver which
performs a mix of recursive and iterative queries."
::= { dnsResConfig 2 }
dnsResConfigMaxCnames OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-write
STATUS mandatory
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."
::= { dnsResConfig 3 }
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dnsResConfigSeatBeltTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResSeatBeltEntry
ACCESS read-write
STATUS mandatory
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."
::= { dnsResConfig 4 }
dnsResSealtBeltEntry OBJECT-TYPE
SYNTAX DnsResSeatBeltEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the resolver's seatbelt table."
INDEX { dnsResSeatBeltAddr,
dnsResSeatBeltSubTree,
dnsResSeatBeltClass }
::= { dnsResSeatBeltTable 1 }
DnsResSeatBeltEntry ::=
SEQUENCE {
dnsResSeatBeltAddr
IpAddress,
dnsResSeatBeltName
DnsName,
dnsResSeatBeltTOS
INTEGER,
dnsResSeatBeltPref
INTEGER,
dnsResSeatBeltSubTree
DnsName,
dnsResSeatBeltClass
DnsClass,
dnsResSeatBeltFile
OCTET STRING,
dnsResSeatBeltDate
DnsDate,
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dnsResSeatBeltValid
DnsValid
}
dnsResSeatBeltAddr OBJECT-TYPE
SYNTAX IpAddress
ACCESS read-only
STATUS mandatory
DESCRIPTION
"IP address of a SeatBelt name server."
::= { dnsResSeatBeltEntry 1 }
dnsResSeatBeltName OBJECT-TYPE
SYNTAX DnsName -- OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS name of a SeatBelt nameserver, if known, otherwise
it is null."
::= { dnsResSeatBeltEntry 2 }
dnsResSeatBeltTOS OBJECT-TYPE
SYNTAX INTEGER {
iterative (1),
recursive (2)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Type-Of-Service resolver expects from seatbelt
nameserver. ITERATIVE indicates that resolver will be
directing iterative queries to this name server (RD
bit turned off), while RECURSIVE indicates that
resolver will be directing recursive queries to this
name server (RD bit turned on)."
::= { dnsResSeatBeltEntry 3 }
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dnsResSeatBeltPref OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This value identifies the preference for the server
identified in this row of the table. The lower the
value, the higher the preference for the particular
server."
::= { dnsResSeatBeltEntry 4 }
dnsResSeatBeltSubTree OBJECT-TYPE
SYNTAX DnsName -- OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The DNS sub tree name for queries sent to the name
server identified by dnsResSeatBeltName."
::= { dnsResSeatBeltEntry 5 }
dnsResSeatBeltClass OBJECT-TYPE
SYNTAX DnsClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The class of DNS queries that will be sent to the
server identified by dnsResSeatBeltName."
::= { dnsResSeatBeltEntry 6 }
dnsResSeatBeltFile OBJECT-TYPE
SYNTAX DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The name of the source file which contains information
read by the resolver at initialization."
::= { dnsResSeatBeltEntry 7 }
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dnsResSeatBeltDate OBJECT-TYPE
SYNTAX DnsDate -- DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This is the date information found in
dnsResSeatBeltFile was last changed."
::= { dnsResSeatBeltEntry 8 }
dnsResSeatBeltValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Setting this variable to CLEAR deletes this SeatBelt
server."
::= { dnsResSeatBeltEntry 9 }
-- Server Configuration Group
-- The implementation of the Server Configuration Group is
-- mandatory for all systems which implement DNS server software
-- functions.
dnsServerImplementIdent OBJECT-TYPE
SYNTAX DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The implementation identification string for the DNS
software in use on the system, for example; FNS2.1"
::= { dnsServerConfig 1 }
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dnsServerConfigRecurs OBJECT-TYPE
SYNTAX INTEGER {
available (1),
restricted (2),
unavailable (3)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This represents the recursion status of requests made
to this server. The possible values are: available -
performs recursion on requests from clients.
Restricted - recursion is performed on requests from
clients which are on an access control list.
Unavailable - recursion is not available."
::= { dnsServerConfig 2 }
-- Resolver Counters Group
-- The implementation of the Resolver Counters Group is mandatory for
-- all systems which implement resolver functions
dnsResCounterUpTime OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"If the resolver has a persistent state, e.g., a
process; this value will be the time elapsed since it
started. For software that does not have persistence,
this value will be 0."
::= { dnsResCounter 1 }
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dnsResCounterResetTime OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Elapsed time since cache was reloaded."
::= { dnsResCounter 2 }
dnsResCounterUPktsIn OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of UDP packets received by the resolver
process(s)."
::= { dnsResCounter 3 }
dnsResCounterUPktsOut OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of UDP packets sent by the resolver
process(s)."
::= { dnsResCounter 4 }
dnsResCounterTCPInitiated OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of attempts to initiate TCP connections with
servers."
::= { dnsResCounter 5 }
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dnsResCounterTCPMesgsIn OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of received DNS messages over TCP by the
resolver process."
::= { dnsResCounter 6 }
dnsResCounterTCPMesgsOut OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of out bound DNS messages sent over TCP by the
resolver."
::= { dnsResCounter 7 }
dnsResCounterTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResCounterTableEntry
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Table of the current count of resolver queries and
answers."
::= { dnsResCounter 8 }
dnsResCounterTableEntry OBJECT-TYPE
SYNTAX DnsResCounterTableEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entry in the resolver counter table. Entries are
indexed by dns opcode."
INDEX { dnsResCounterOpCode }
::= { dnsResCounterTable 1 }
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DnsResCounterTableEntry ::=
SEQUENCE {
dnsResCounterOpCode
INTEGER,
dnsResCounterQueries
Counter,
dnsResCounterResponses
Counter
}
dnsResCounterOpCode OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The index to this table. The opcodes that have
already been defined are found in RFC1035."
::= { dnsResCounterTableEntry 1 }
dnsResCounterQueries
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The total number of queries that have sent out by the
resolver since initialization for the opcode which is
index to this row of the table."
::= { dnsResCounterTableEntry 2 }
dnsResCounterResponses
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The 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."
::= { dnsResCounterTableEntry 3 }
-- Additional DNS Resolver Counter Objects
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dnsResCounterNonAuthData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests made by the resolver for which a
non-authoritative answer (cached data) was made by the
local server."
::= { dnsResCounter 9 }
dnsResCounterNonAuthNoData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests made by the resolver for which a
non-authoritative answer - no such data response was
made (empty answer) by the local server."
::= { dnsResCounter 10 }
dnsResCounterMartians OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses received which were received from
servers that the resolver does not think it asked."
::= { dnsResCounter 11 }
dnsResCounterResponsesRecd OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses received to all queries."
::= { dnsResCounter 12 }
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dnsResCounterDuplicates OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses received which were duplicates and
ignored by the resolver."
::= { dnsResCounter 13 }
dnsResCounterUnparse OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses received which were unparseable."
::= { dnsResCounter 14 }
dnsResCounterServerFail OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses received which were server failed
responses."
::= { dnsResCounter 15 }
dnsResCounterOtherFail OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses received which where for all other
bad responses."
::= { dnsResCounter 16 }
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dnsResCounterTCPAttempts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of attempts over TCP made by the resolver
to connect with root servers."
::= { dnsResCounter 17 }
dnsResCounterUDPAttempts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of out bound UDP packets sent by the resolver
resolver to root servers."
::= { dnsResCounter 18 }
dnsResCounterNoLocalData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries that have been sent because
they could not be answered with local information by
the resolver."
::= { dnsResCounter 19 }
dnsResCounterReferals OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses which were received from
servers redirecting query to another server."
::= { dnsResCounter 20 }
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dnsResCounterRetrans OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number requests retransmitted for all reasons."
::= { dnsResCounter 21 }
dnsResCounterNoResponse OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries that were retransmitted because of
no response."
::= { dnsResCounter 22 }
dnsResCounterRootRetrans OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries that were retransmitted that were to
root servers."
::= { dnsResCounter 23 }
dnsResCounterLateRetrans OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries that were retransmitted as a result
of late responses."
::= { dnsResCounter 24 }
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dnsReSCounterLocalTrunc OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of truncated responses due to local truncation
for forwarded queries."
::= { dnsResCounter 25 }
dnsResSCounterTruncRemote OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of truncated responses from remote servers for
forwarded queries."
::= { dnsResCounter 26 }
dnsResCounterInternal OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests internally generated by the
resolver."
::= { dnsResCounter 27 }
dnsResCounterInternalTimeOut OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests internally generated which timed
out."
::= { dnsResCounter 28 }
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-- Server Counter Group
-- The implementation of the Server Counter Group is mandatory for
-- all systems which offer either recursive or non recursive server
-- software functions.
-- Several of the objects in this group make distinctions between
-- queries which originate with the local host, within the same
-- zone as the local host or come from outside the zone of the
-- server. 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 the query came from a friend,
-- that is; within the local zone. What constitutes an 'access
-- list' is implementation dependent and could be as simple as all
-- hosts on the same IP network as the DNS server are classed as in
-- the local zone and are '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'.
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dnsServCounterUTime OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"If the server has a persistent state, e.g., a
process; this value will be the time elapsed since it
started. For software that does not have persistence,
this value will be 0." "
::= { dnsServCounter 1 }
dnsServCounterResetTime OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Elapsed time since cache was last reloaded for any
reason."
::= { dnsServCounter 2 }
dnsServCounterUPktsIn OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of UDP packets received by the server
process(s)."
::= { dnsServCounter 3 }
dnsServCounterUPktsOut OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of UDP packets sent by the server process(s)."
::= { dnsServCounter 4 }
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dnsServCounterTCPConns OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of TCP connections received by the server
processes(s)."
::= { dnsServCounter 5 }
dnsServCounterTCPInitiated OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of attempt to initiate TCP connections with
other servers."
::= { dnsServCounter 6 }
dnsServCounterTCPMesgsIn OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of received DNS messages over TCP by the server
process."
::= { dnsServCounter 7 }
dnsServCounterTCPMesgsOut OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of out bound DNS messages over TCP sent by the
server."
::= { dnsServCounter 8 }
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dnsServCounterOpCodeTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsServCounterOpCodeTableEntry
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Table of the current count of queries answered by the
server."
::= { dnsServCounter 9 }
dnsServCounterOpCodeTableEntry OBJECT-TYPE
SYNTAX DnsServCounterOpCodeTableEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entry in the server counter OpCode table. Entries
are indexed by dns opcode."
INDEX { dnsServCounterOpCode }
::= { dnsServCounterOpCodeTable 1 }
DnsServCounterOpCodeTableEntry ::=
SEQUENCE {
dnsServCounterOpCode
INTEGER,
dnsServCounterQueries
Counter,
dnsServCounterResponses
Counter
}
dnsServCounterOpCode OBJECT-TYPE
SYNTAX INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The index to this table. Opcodes that have
already been defined are found in RFC1035."
::= { dnsServCounterOpCodeTableEntry 1 }
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dnsServCounterQueries OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries that have been received
since initialization for the type of query
identified on this row of the table."
::= { dnsServCounterOpCodeTableEntry 2 }
dnsServCounterResponses OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of responses made by the server since
initialization for the type of query identified
on this row of the table."
::= { dnsServCounterOpCodeTableEntry 3 }
-- Additional DNS Server Counter Objects
dnsServCounterSelfAuth OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests the server has processed with
authoritative data which originated from a resolver
on the same host."
::= { dnsServCounter 10 }
Document Expiration Date - January 5, 1993 - Saperia 25
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dnsServCounterSelfAuthNoName OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
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
(NXDOMAIN) given."
::= { dnsServCounter 11 }
dnsServCounterSelfAuthNoData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
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."
::= { dnsServCounter 12 }
dnsServCounterSelfNonAuthData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
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."
::= { dnsServCounter 13 }
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dnsServCounterSelfNonAuthNoData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests the server has processed which
originated from a resolver on the same host for which
a non-authoritative answer - no such data response was
made (empty answer)."
::= { dnsServCounter 14 }
dnsServCounterSelfCAny OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests the server has processed which
originated from a resolver on the same host which
were answers to C_ANY queries."
::= { dnsServCounter 15 }
dnsServCounterSelfIAns OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of inverse queries the server has processed which
originated from a resolver on the same host which
were answered with local information."
::= { dnsServCounter 16 }
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dnsServCounterSelfNonRecurs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of non recursive queries the server has
processed which originated from a resolver on the
same host and were referred to other servers."
::= { dnsServCounter 17 }
dnsServCounterSelfErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests the server has processed which
originated from a resolver on the same host which
have been answered with error responses (e.g.,
malformed query)."
::= { dnsServCounter 18 }
dnsServCounterSelfRelNames OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests received for relative names the
server has processed which originated from a resolver
on the same host."
::= { dnsServCounter 19 }
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dnsServCounterFriendsAuth OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from friends which
were authoritatively answered. The definition of
friends is a locally defined matter."
::= { dnsServCounter 20 }
dnsServCounterFriendsNoSuch OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from friends, for
which authoritative no such name (NXDOMAIN) responses
were made. The definition of friends is a locally
defined matter."
::= { dnsServCounter 21 }
dnsServCounterFriendsZoneNoData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
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."
::= { dnsServCounter 22 }
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dnsServCounterFriendsCached OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from friends which
were non-authoritatively answered (cached data).
The definition of friends is a locally defined matter."
::= { dnsServCounter 23 }
dnsServCounterFriendsCachedNoSuch OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from friends for
were non-authoritatively answered with no such data
(empty answer)."
::= { dnsServCounter 24 }
dnsServCounterFriendsCAny OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of answers to C_ANY queries which originated
from friends. The definition of friends is a locally
defined matter."
::= { dnsServCounter 25 }
dnsServCounterFriendsInverse OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of answers to inverse queries which originated
from friends. The definition of friends is a locally
defined matter."
::= { dnsServCounter 26 }
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dnsServCounterFriendsForwards OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests which originated from friends
that were forwarded to other servers. The definition
of friends is a locally defined matter."
::= { dnsServCounter 27 }
dnsServCounterFriendsRecurs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of non recursive queries which originated
from friends which have been referred to other
servers. The definition of friends is a locally
defined matter."
::= { dnsServCounter 28 }
dnsServCounterFriendsErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries which originated from friends
which were answered with error responses. The
definition of friends is a locally defined matter."
::= { dnsServCounter 29 }
dnsServCounterFriendsRel OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests received for relative names from
friends."
::= { dnsServCounter 30 }
Document Expiration Date - January 5, 1993 - Saperia 31
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dnsServCounterRemoteAuth OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from systems which have
not been defined as friends, which were
authoritatively answered."
::= { dnsServCounter 31 }
dnsServCounterRemoteNoSuch OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from systems which
have not been defined as friends, for which
authoritative no such name (NXDOMAIN) responses
were made."
::= { dnsServCounter 32 }
dnsServCounterRemoteNoData OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from systems which
have not been defined as friends, for which
authoritative no such data (empty answer)
responses were made."
::= { dnsServCounter 33 }
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dnsServCounterRemoteCached OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from systems which
have not been defined as friends, which were
non-authoritatively answered (cached data)."
::= { dnsServCounter 34 }
dnsServCounterRemoteCachedNoSuch OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries originating from systems which
have not been defined as friends, which were
non-authoritatively answered with no such data
(empty answer)."
::= { dnsServCounter 35 }
dnsServCounterRemoteAny OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of answers to C_ANY queries which originated
from systems which have not been defined as friends."
::= { dnsServCounter 36 }
dnsServCounterRemoteInverse OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of answers to inverse queries which originated
from systems which have not been defined as friends."
::= { dnsServCounter 37 }
Document Expiration Date - January 5, 1993 - Saperia 33
Internet Draft - DNS MIB - June 15, 1992
dnsServCounterRemoteForwards OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests which originated from systems which
have not been defined as friends that were forwarded to
other servers."
::= { dnsServCounter 38 }
dnsServCounterRemoteRecurs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of non recursive queries which originated
from systems which have not been defined as friends
that have been referred other servers."
::= { dnsServCounter 39 }
dnsServCounterRemoteErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries which originated from systems which
have not been defined as friends that were answered
with error responses."
::= { dnsServCounter 40 }
dnsServCounterReqRef OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of DNS requests refused by the local server
process."
::= { dnsServCounter 41 }
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dnsServCounterReqUnparse OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests received which were unparseable."
::= { dnsServCounter 42 }
dnsServCounterLocalErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests which were aborted for other
(local) server errors."
::= { dnsServCounter 43 }
dnsServCounterDuplicates OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of duplicate requests which were received and
not forwarded."
::= { dnsServCounter 44 }
dnsServCounterTruncLocal OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of truncated responses due to local truncation
for local queries."
::= { dnsServCounter 45 }
Document Expiration Date - January 5, 1993 - Saperia 35
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dnsServCounterRelRemote OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of requests received for relative names form
hosts outside of the server zone."
::= { dnsServCounter 46 }
-- DNS Server Counter Table
dnsCounterTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsCounterEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Counter information based on DNS class and
record type."
::= { dnsServCounter 47 }
dnsServCounterEntry OBJECT-TYPE
SYNTAX dnsServCounterEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"This table contains count information for each DNS
record and class type 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 or A record queries over UDP which came to this
server from a specific IP address."
INDEX { dnsServCounterClass, dnsServCounterQueryType,
dnsServCounterQuerySource, dnsServCounterTransport }
::= { dnsServCounterTable 1 }
36 Document Expiration Date - January 5, 1993 - Saperia
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DnsServCounterEntry ::=
SEQUENCE {
dnsServCounterClass
DnsClass,
dnsServCounterQueryType
DnsType,
dnsServCounterQuerySource
INTEGER,
dnsServCounterTransport
INTEGER,
dnsServCounterNumber
Counter
}
dnsServCounterClass OBJECT-TYPE
SYNTAX DnsClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The class of the record type being counted in
this row the table. For classes defined in RFC 1035,
the values are the same.
::= { dnsServCounterEntry 1 }
dnsServCounterQueryType OBJECT-TYPE
SYNTAX DnsType -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The type of record which is being counted in this row
in the table. For types defined in RFC 1035, the
values are the same as those specified in the RFC."
::= { dnsServCounterEntry 2 }
Document Expiration Date - January 5, 1993 - Saperia 37
Internet Draft - DNS MIB - June 15, 1992
dnsServCounterQuerySource OBJECT-TYPE
SYNTAX INTEGER {
self (1),
friend (2),
remote (3)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The source of the queries being counted in this row of
the table. A value of 1 indicates that the queries reported
on this row came from a resolver which resides on the same
system as the server. A value of 2 indicates the
queries originated from fiends of the server - the
definition of friends is a locally defined matter. A
value of 3 indicates that the queries counted on this
row of the table came from systems which have not been
defined as friends.."
::= { dnsServCounterEntry 3 }
dnsServCounterTransport OBJECT-TYPE
SYNTAX INTEGER {
udp (1),
tcp (2),
other (3)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"A value of 1 indicates that the queries reported on
this row were sent using UDP. A value of 2 indicates
that TCP was used. 3 is for any transport other than
TCP or UDP."
::= { dnsServCounterEntry 4 }
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dnsServCounterNumber OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of queries that have been recorded in this row
of the table."
::= { dnsServCounterEntry 5 }
-- Records Group
-- The implementation of the Records Group is mandatory for all
-- systems which implement DNS server software functions.
-- Records Table
-- The records default table contains information about records
-- that the DNS software reads at initialization.
dnsRecDefaultTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsRecDefaultEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Configuration information about all RR records for the
DNS software."
::= { dnsRecord 1 }
dnsRecDefaultEntry OBJECT-TYPE
SYNTAX DnsRecDefaultEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"This table contains Resource Record configuration
information."
INDEX { dnsRecDefaultIndex }
::= { dnsRecDefaultTable 1 }
Document Expiration Date - January 5, 1993 - Saperia 39
Internet Draft - DNS MIB - June 15, 1992
DnsRecDefaultEntry ::=
SEQUENCE {
dnsRecDefaultIndex
INTEGER,
dnsRecDefaultDomain
OCTET STRING,
dnsRecDefaultClass
DnsClass,
dnsRecDefaultType
DnsType,
dnsRecDefaultTTL
INTEGER,
dnsRecDefaultLength
INTEGER,
dnsRecDefaultData
OCTET STRING
}
dnsRecDefaultIndex OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"A unique index value which identifies each entry in
this table."
::= { dnsRecDefaultEntry 1 }
dnsRecDefaultDomain OBJECT-TYPE
SYNTAX DnsName -- OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The DNS domain to which this entry belongs."
::= { dnsRecDefaultEntry 2 }
40 Document Expiration Date - January 5, 1993 - Saperia
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dnsRecDefaultClass OBJECT-TYPE
SYNTAX DnsClasss -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The class of the record contained in this row. For
classes defined in RFC 1035, the values are the same."
::= { dnsRecDefaultEntry 3 }
dnsRecDefaultType OBJECT-TYPE
SYNTAX DnsType -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The type of the record contained in this row. For
types defined in RFC 1035, the values are the same."
::= { dnsRecDefaultEntry 3 }
dnsRecDefaultTTL OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The default Time to Live value for this record which
is read in on initialization."
::= { dnsRecDefaultEntry 4 }
dnsRecDefaultLength OBJECT-TYPE
SYNTAX INTEGER (1..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The length in octets of the data in dnsRecDefaultData."
::= { dnsRecDefaultEntry 5 }
Document Expiration Date - January 5, 1993 - Saperia 41
Internet Draft - DNS MIB - June 15, 1992
dnsRecDefaultData OBJECT-TYPE
SYNTAX OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Variable length of octets. The length is defined in
dnsRecDefaultLength. The Type and Class information
provided in this row of the table along with this data
tell the management station how to interpret the date.
For information on the details of DNS Resource Records
and their formats, see RFC1035."
::= { dnsRecDefaultEntry 6 }
-- Resolver Cache Group
-- The implementation of the Resolver Cache Group is mandatory for
-- all systems which implement a cache.
dnsResCacheTablednsResCacheStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled (1),
disabled (2)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Status of the resolver's cache.
ENABLED means that the use of the cache is allowed.
DISABLED means that the cache is not being used."
::= { dnsResCache 1 }
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dnsResCacheValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Setting this to CLEAR deletes the resolver's entire
cache."
::= { dnsResCache 2 }
dnsResCacheMaxTTL OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-write
STATUS mandatory
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 hexadecimal FFFFFFFF." "
::= { dnsResCache 3 }
-- Resolver Cache Table
-- The Resolver Cache Table contains information about Resource
-- Records currently in the resolver's cache.
OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResCacheEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The entire contents of the resolver's cache."
::= { dnsResCache 4 }
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dnsResCacheEntry OBJECT-TYPE
SYNTAX DnsResCacheEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"A single entry in the resolvers's cache."
INDEX { dnsResCacheIndex,
dnsResCacheRRName,
dnsResCacheRRClass,
dnsResCacheRRType }
::= { dnsResCacheTable 1 }
DnsResCacheEntry ::=
SEQUENCE {
dnsResCacheIndex,
INTEGER,
dnsResCacheRRName
DnsName,
dnsResCacheRRClass
DnsClass,
dnsResCacheRRType
DnsType,
dnsResCacheRRTTL
DnsTime,
dnsResCacheRRElapsedTTL
DnsTime,
dnsResCacheRRSource
IpAddress,
dnsResCacheRRRData
OCTET STRING,
dnsResCacheRRValid
DnsValid
}
dnsResCacheRRIndex OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
44 Document Expiration Date - January 5, 1993 - Saperia
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"A unique index value which indentifies each entry in
this table."
::= { dnsResCacheEntry 1 }
dnsResCacheRRName OBJECT-TYPE
SYNTAX DnsName -- OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Owner name of the Resource Record in the cache which
is identified in this row of the table. As described
in RFC1034, the owner of the record is the domain name
were the RR is found."
::= { dnsResCacheEntry 2 }
dnsResCacheRRClass OBJECT-TYPE
SYNTAX DnsClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS class of the Resource Record in the cache which
is identified in this row of the table."
::= { dnsResCacheEntry 3 }
dnsResCacheRRType OBJECT-TYPE
SYNTAX DnsType -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS type of the Resource Record in the cache which
is identified in this row of the table."
::= { dnsResCacheEntry 4 }
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dnsResCacheRRTTL OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
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."
::= { dnsResCacheEntry 5 }
dnsResCacheRRElapsedTTL OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Elapsed seconds since RR was received."
::= { dnsResCacheEntry 6 }
dnsResCacheRRSource OBJECT-TYPE
SYNTAX IpAddress
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Host from which RR was received, 0.0.0.0 if unknown."
::= { dnsResCacheEntry 7 }
dnsResCacheRRRData OBJECT-TYPE
SYNTAX OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"RDATA portion of a cached RR."
::= { dnsResCacheEntry 8 }
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dnsResCacheRRValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Set to CLEAR to delete this RR entry from the
cache table."
::= { dnsResCacheEntry 9 }
-- Resolver Negative Cache Group
-- The implementation of the Resolver Negative Cache group is
-- mandatory for all systems which implement negative a negative
-- cache function.
dnsResNCacheStatus OBJECT-TYPE
SYNTAX INTEGER {
enabled (1),
disabled (2)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Status of the resolver's negative cache.
ENABLED means that the use of the negative cache is
allowed.
DISABLED means that the negative caching is not being
used."
::= { dnsNResCache 1 }
Document Expiration Date - January 5, 1993 - Saperia 47
Internet Draft - DNS MIB - June 15, 1992
dnsResNCacheValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Setting this to CLEAR deletes the resolver's entire
negative response cache."
::= { dnsNResCache 2 }
dnsResNCacheMaxTTL OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-write
STATUS mandatory
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 hexadecimal FFFFFFFF."
::= { dnsNResCache 3 }
-- Resolver Negative Cache Table
-- The Resolver Negative Cache Table contains information about
-- Resource Records currently in the resolver's cache.
dnsResNCacheTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResNCacheEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"The resolver's negative response cache."
::= { dnsResNCache 4 }
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dnsResNCacheEntry OBJECT-TYPE
SYNTAX DnsResNCacheEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the resolver's negative response cache."
INDEX { dnsResNCacheIndex,
dnsResNCacheErrQName,
dnsResNCacheErrQClass,
dnsResNCacheErrQType }
::= { dnsResNCacheTable 1 }
DnsResNCacheEntry ::=
SEQUENCE {
dnsResNCacheIndex,
INTEGER,
dnsResNCacheErrQName
DnsName,
dnsResNCacheErrQClass
DnsQClass,
dnsResNCacheErrQType
DnsQType,
dnsResNCacheErrTTL
DnsTime,
dnsResNCacheErrElapsedTTL
DnsTime,
dnsResNCacheErrSource
IpAddress,
dnsResNCacheErrCode
INTEGER,
dnsResNCacheErrValid
DnsValid
}
dnsResNCacheIndex OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-only
STATUS mandatory
DESCRIPTION
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"A unique index value which indentifies each entry in
the Negative Cache table."
::= { dnsResNCacheEntry 1 }
dnsResNCacheErrQName OBJECT-TYPE
SYNTAX DnsName -- OCTET STRING
ACCESS read-only
STATUS mandatory
DESCRIPTION
"QNAME associated with a cached authoritative error."
::= { dnsResNCacheEntry 2 }
dnsResNCacheErrQClass OBJECT-TYPE
SYNTAX DnsQClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS QCLASS associated with a cached authoritative error."
::= { dnsResNCacheEntry 3 }
dnsResNCacheErrQType OBJECT-TYPE
SYNTAX DnsQType -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS QTYPE associated with a cached authoritative error."
::= { dnsResNCacheEntry 4 }
dnsResNCacheErrTTL OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Time-To-Live of a cached authoritative error.
This should be the TTL as copied from the MINIMUM
field of the SOA that accompanied the authoritative
error."
::= { dnsResNCacheEntry 5 }
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dnsResNCacheErrElapsedTTL OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Elapsed seconds since authoritative error was received."
::= { dnsResNCacheEntry 6 }
dnsResNCacheErrSource OBJECT-TYPE
SYNTAX IpAddress
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Host which sent the authoritative error, 0.0.0.0 if
unknown."
::= { dnsResNCacheEntry 7 }
dnsResNCacheErrCode OBJECT-TYPE
SYNTAX INTEGER {
nonexistantName (1),
noData (2),
other (3)
}
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The authoritative error that has been cached.
NonexistantName indicates a cached authoritative name
error. NoData indicates a cached authoritative
response with no error and no relevant data."
::= { dnsResNCacheEntry 8 }
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dnsResNCacheErrValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Set to CLEAR to delete this cached error."
::= { dnsResNCacheEntry 9 }
-- Resolver Statistics Group
-- The implementation of the Resolver Statistics Group is
-- mandatory for all systems which implement resolver functions.
dnsResStatGoodCaches OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of RRs the resolver has cached successfully."
::= { dnsResStats 1 }
dnsResStatBadCaches OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of RRs the resolver has refused to cache
because they appear to be dangerous or irrelevant.
Eg, RRs with suspiciously high TTLs, unsolicited root
information, or that just don't appear to be relevant
to the question the resolver asked."
::= { dnsResStats 2 }
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dnsResStatGoodNCaches OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Number of authoritative errors the resolver has cached
successfully."
::= { dnsResStats 3 }
dnsResStatBadNCaches OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
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."
::= { dnsResStats 4 }
-- Lame Delegation Table
dnsResLameDelegationTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsResLameDelegationEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Table of name servers returning lame delegations."
::= { dnsResStats 5 }
dnsResLameDelegationEntry OBJECT-TYPE
SYNTAX DnsResLameDelegationEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Entry in lame delegation table."
INDEX { dnsResLameDelegationSource,
dnsResLameDelegationName,
dnsResLameDelegationClass }
::= { dnsResLameDelegationTable 1 }
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DnsResLameDelegationEntry ::=
SEQUENCE {
dnsResLameDelegationSource
IpAddress,
dnsResLameDelegationName
DnsName,
dnsResLameDelegationClass
DnsClass,
dnsResLameDelegationCount
Counter,
dnsResLameDelegationValid
DnsValid
}
dnsResLameDelegationSource OBJECT-TYPE
SYNTAX IpAddress
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Source of lame delegation."
::= { dnsResLameDelegationEntry 1 }
dnsResLameDelegationName OBJECT-TYPE
SYNTAX DnsName
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS name for which lame delegation was received."
::= { dnsResLameDelegationEntry 2 }
dnsResLameDelegationClass OBJECT-TYPE
SYNTAX DnsClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS class of received lame delegation."
::= { dnsResLameDelegationEntry 3 }
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dnsResLameDelegationCount OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"How many times this lame delegation has been received."
::= { dnsResLameDelegationEntry 4 }
dnsResLameDelegationValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"Set to CLEAR to delete this lame delegation entry."
::= { dnsResLameDelegationEntry 5 }
-- Server Management Group
-- The implementation of the Server Management Group is mandatory
-- for all systems which implement DNS server software functions.
dnsMgmtVersion OBJECT-TYPE
SYNTAX DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Name and version information for name server software."
::= { dnsMgmt 1 }
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dnsMgmtReload OBJECT-TYPE
SYNTAX INTEGER {
reload (1),
other (2)
}
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This read-write variable is used to force a database
reload with a restart of the name server process
When set to the values above, the following actions
are taken: reload - Reload and restart name server
process(s). Other is returned when a read operation
is performed on this object."
::= { dnsMgmt 2 }
-- DNS Managment Zone Configuration Table
dnsMgmtZoneTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsNsZoneEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Table of zones for which this name server is
configured. If name server doesn't load any zones,
this table is empty."
::= { dnsMgmt 3 }
dnsMgmtZoneEntry OBJECT-TYPE
SYNTAX DnsMgmtZoneEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the name server zone table."
INDEX { dnsMgmtZoneName,
dnsMgmtZoneClass }
::= { dnsMgmtZoneTable 1 }
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DnsMgmtZoneEntry ::=
SEQUENCE {
dnsMgmtZoneName
DnsName,
dnsMgmtZoneLoad
DisplayString,
dnsMgmtZoneDate
DnsDate,
dnsMgmtZoneClass
DnsClass,
dnsMgmtZoneLastReload
DnsTime,
dnsMgmtZoneLastReloadAttempt
DnsTime,
dnsMgmtZoneLastSource
IpAddress,
dnsMgmtZoneSerial
INTEGER,
dnsMgmtZoneRefresh
DnsTime
dnsMgmtZoneRetry
DnsTime,
dnsMgmtZoneExpire
DnsTime,
dnsMgmtZoneMin,
INTEGER,
dnsMgmtZoneValid
DnsValid
}
dnsMgmtZoneName OBJECT-TYPE
SYNTAX DnsName
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS name of SOA RR defining top of this zone."
::= { dnsMgmtZoneEntry 1 }
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dnsMgmtZoneLoad OBJECT-TYPE
SYNTAX DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This is the name of the file that is read in for the
initial load of zone information on startup."
::= { dnsMgmtZoneEntry 2 }
dnsMgmtZoneDate OBJECT-TYPE
SYNTAX DnsDate -- DisplayString
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This is the date that the information found in
dnsMgmtZoneLoad was last changed."
::= { dnsMgmtZoneEntry 3 }
dnsMgmtZoneClass OBJECT-TYPE
SYNTAX DnsClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS class of the RRs in this zone."
::= { dnsMgmtZoneEntry 4 }
dnsMgmtZoneLastReload OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Elapsed seconds since last successful reload of
this zone."
::= { dnsMgmtZoneEntry 5 }
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dnsMgmtZoneLastReloadAttempt OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"Elapsed seconds since last attempted reload of
this zone."
::= { dnsMgmtZoneEntry 6 }
dnsMgmtZoneLastSource OBJECT-TYPE
SYNTAX IpAddress
ACCESS read-only
STATUS mandatory
DESCRIPTION
"IP address of host from which most recent reload of
this zone was received. If unknown or irrelevant,
value should be 0.0.0.0."
::= { dnsMgmtZoneEntry 7 }
dnsMgmtSerial OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-write
STATUS mandatory
DESCRIPTION
"The current serial number of the SOA record in the
file specified by dnsServMgmtBootLoad."
::= { dnsMgmtZoneEntry 8 }
dnsMgmtZoneRefresh OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"REFRESH interval for zone. This is the REFRESH field
of the zone's SOA RR, if known, otherwise whatever
value the name server is using in place of the SOA
REFRESH value."
::= { dnsMgmtZoneEntry 9 }
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dnsMgmtZoneRetry OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"RETRY interval for zone. This is the RETRY field of
the zone's SOA RR, if known, otherwise whatever value
the name server is using in place of the SOA RETRY
value."
::= { dnsMgmtZoneEntry 10 }
dnsMgmtZoneExpire OBJECT-TYPE
SYNTAX DnsTime
ACCESS read-only
STATUS mandatory
DESCRIPTION
"EXPIRE interval for zone. This is the EXPIRE field of
the zone's SOA RR, if known, otherwise whatever value
the name server is using in place of the SOA EXPIRE
value."
::= { dnsMgmtZoneEntry 11 }
dnsMgmtZoneMin OBJECT-TYPE
SYNTAX INTEGER
ACCESS read-write
STATUS mandatory
DESCRIPTION
"This value is the TTL field which will be exported
with any RR from this zone and is specified in the SOA
record identified by dnsServMgmtBootLoad."
::= { dnsServMgmtBootEntry 12 }
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dnsMgmtZoneValid OBJECT-TYPE
SYNTAX DnsValid {
valid (1),
clear (2)
}
ACCESS write-only
STATUS mandatory
DESCRIPTION
"Set to CLEAR to delete this zone entry."
::= { dnsMgmtZoneEntry 13 }
-- DNS Management Server Table
dnsMgmtServTable OBJECT-TYPE
SYNTAX SEQUENCE OF DnsMgmtServEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Table of IP addresses of name server hosts from which
this name server might obtain particular zones.
Typically this indicates the addresses of the primary
name servers of zones for which the SNMP agent's host
is a secondary name server."
::= { dnsMgmt 4 }
dnsMgmtServEntry OBJECT-TYPE
SYNTAX DnsMgmtServEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the name server server (sic) table."
INDEX { dnsMgmtServName,
dnsMgmtServClass,
dnsMgmtServAddr }
::= { dnsMgmtServTable 1 }
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DnsMgmtServEntry ::=
SEQUENCE {
dnsMgmtServName
DnsName,
dnsMgmtServClass
DnsClass,
dnsMgmtServAddr
IpAddress
}
dnsMgmtServName OBJECT-TYPE
SYNTAX DnsName
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS name of the zone to which this entry applies."
::= { dnsMgmtServ 1 }
dnsMgmtServClass OBJECT-TYPE
SYNTAX DnsClass -- INTEGER (0..65535)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"DNS class of zone to which this entry applies."
::= { dnsMgmtServ 2 }
dnsMgmtServAddr OBJECT-TYPE
SYNTAX IpAddress
ACCESS read-only
STATUS mandatory
DESCRIPTION
"IP address of name server host from which this zone
might be obtainable."
::= { dnsMgmtServ 3 }
END
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5 Acknowledgements
This document is the result of work undertaken the by DNS work-
ing group. Special thanks are due to Rob Austein of Epilogue
Technology for the major contributions he has made in the orga-
nization of the MIB as well as authoring many of the objects.
In addition, the contributions and comments of the following
members are also specially acknowledged:
Win Treese, Digital Equipment Corporation
Philip Almquist, Computer Communication consultant
Joe Peck, Digital Equipment Corporation
6 References
J. Reynolds and J. Postel, Assigned Numbers. Internet Working
Group Request for Comments 1010. Network Information Center, SRI
International, Menlo Park, California, (May, 1987).
M. Stahl, Domain Administrators Guide. Internet Working Group
Request for Comments 1032. Network Information Center, SRI
International, Menlo Park, California, (November, 1987).
M. Lottor, Domain Administrators Operations Guide, Internet
Working Group Request for Comments 1033. Network Information
Center, SRI International, Menlo Park, California, (November,
1987).
P. Mockapetris, Domain Names - Concepts and Facilities, Internet
Working Group Request for Comments 1034. Network Information
Center, SRI International, Menlo Park, California, (November,
1987).
P. Mockapetris, Domain Names - Implementation and Specifica-
tion, Internet Working Group Request for Comments 1035. Network
Information Center, SRI International, Menlo Park, California,
(November, 1987).
Document Expiration Date - January 5, 1993 - Saperia 63
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V. Cerf, IAB Recommendations for the Development of Internet
Network Management Standards. Internet Working Group Request for
Comments 1052. Network Information Center, SRI International,
Menlo Park, California, (April, 1988).
R. Braden (editor) Requirements for Internet Hosts-Application
and Support, Internet Working Group Request for Comments 1123.
Network Information Center, SRI International,Menlo Park, Cali-
fornia, (October, 1989).
M.T. Rose and K. McCloghrie, Structure and Identification of
Management Information for TCP/IP-based internets, Internet
Working Group Request for Comments 1155. Network Information
Center, SRI International, Menlo Park, California, (May, 1990).
K. McCloghrie and M.T. Rose, Management Information Base for
Network Management of TCP/IP-based internets, Internet Working
Group Request for Comments 1156, Network Information Center, SRI
International, Menlo Park, California, (May, 1990).
J.D. Case, M.S. Fedor, M.L. Schoffstall, and J.R. Davin, Simple
Network Management Protocol, Internet Working Group Request for
Comments 1157. Network Information Center, SRI International,
Menlo Park, California, (May, 1990).
M.T. Rose, The Open Book, A Practical Perspective on OSI. Pren-
tice Hall, Englewood Cliffs, New Jersey, (1990).
M.T. Rose and K. McCloghrie (editors) Concise MIB Definitions,
Internet Working Group Request for Comments 1212, Network In-
formation Center, SRI International, Menlo Park, California,
(March, 1991).
K. McCloghrie and M.T. Rose (editors), Management Information
Base for Network Management of TCP/IP-based internets: MIB-
II, Internet Working Group Request for Comments 1213. Network
Information Center, SRI International, Menlo Park, California,
(March, 1991).
64 Document Expiration Date - January 5, 1993 - Saperia