M
- m4
- A suite of macro-processing utilities for simplifying administration
of system files that are different on different hosts (such as
/etc/printcap).
- MAC
- See Media Access Control (MAC).
- mail
- A message to one or more users or groups sent over the computer.
Mail can include other documents as attachments. Mail can traverse
multiple machines and networks. See also
attachment, Multipurpose
Internet Mail Extensions (MIME), NeXTMail,
Simple Mail Transfer Protocol (SMTP).
- mail address
- An RFC 822
compliant address in one of the following forms:
- Firstname Lastname <user@site.domain.name>
- user@site.domain.name (Firstname Lastname)
See also RFC.
- mail alias
- An alias used for electronic mail. See alias.
- Maker Interchange Format (MIF)
- An all-ASCII representation of a document
for FrameMaker. It is possible for scripts to generate MIF format files
for importing into FrameMaker. In addition, the MIF format allows
documents to be moved to previous versions of the program or to different
platforms.
- MAN
- See Metropolitan Area Network (MAN).
- managed node
- An object that represents a machine; a managed machine interface that
is generic across all platforms.
- managed resource
- A specific instance of a resource type that has a default policy
defined in the policy region.
- Management Information Base (MIB)
- A collection of data objects that can be accessed via a network
management protocol such as Simple Network
Management Protocol (SNMP). General information can be found
in RFC 1156.
- map
- A system database, such as the password or hosts maps, in the
Network Information Service (NIS).
- MARS
- See Multicast Address Resolution Server (MARS).
- Massachusetts Institute of Technology (MIT)
- The source of a number of widely-used computer programs, including
Kerberos and the X Window System.
- master
- The primary NetInfo server in a domain or subdomain. See
NetInfo.
- The primary NIS server in a domain. See
Network Information Service (NIS).
- maximum transfer unit (MTU)
- The largest packet size that a network
interface is configured to accept.
- MBONE
- The multicast network overlaid atop the
global Internet.
- MDist
- See Multiplexed Distribution (MDist).
- Media Access Control (MAC)
- The six-byte address of network either the Ethernet or the
ATM hardware (interface board). Typically
written as six colon-separated hexadecimal numbers.
- metadevice
- A logical device that encompasses one or more physical devices.
See also Disk Suite.
- metamirror
- See mirror.
- method
- Code that is executed to perform some service; an implementation-specific
procedure which carries out some function; for example, a program,
operating system command or shell script. The method performs some work
and returns any results or status to the originator of the request.
- Metropolitan Area Network (MAN)
- A collection of local area networks (LANs) that would otherwise be a
wide area network (WAN), but which is local to a single metropolitan area
(for example, between five different buldings in London). See also
Local Area Network (LAN),
Wide Area Network (WAN).
- MIB
- See Management Information Base (MIB).
- MIF
- See Maker Interchange Format (MIF).
- MIME
- See Multipurpose Internet Mail Extensions (MIME).
- mirror
- A collection of one to three submirrors
which, when modified, causes the modification to be applied to each of its
submirrors. A technique of duplicating data on multiple logical disk
partitions to reduce the risk of data loss in the event of a hardware
failure. See also Disk Suite.
- MIT
- See Massachusetts Institute of Technology (MIT).
- MOSPF
- See Multicast Open Shortest Path First (MOSPF).
- Motif
- A windowing environment for the X Window System.
- mrouter
- A multicast router. See
router.
- MS-DOS
- See Disk Operating System (DOS).
- MTU
- See maximum transmission unit (MTU).
- multicast
- One host multicasts when it wants multiple machines (typically
on a WAN) to receive the packet or information. See also
anycast,
broadcast,
unicast.
- Multicast Address Resolution Server (MARS)
- Tracks the multicast-capable hosts and any existing groups for
adding and removing multicast routers from a conference.
- Multicast Open Shortest Path First (MOSPF)
- A multicast version of the Open Shortest
Path First (OSPF) routing protocol. This multicast routing
protocol scales much better than DVMRP.
- multiplex, demultiplex
- To combine multiple signals from possibly disparate sources, in
order to transmit them over a single path. At the destination, the
data stream is demultiplexed (or demuxed) back into
its separate channels.
- Multiplexed Distribution (MDist)
- A central service that is built on top of the TMP that distributes
large amounts of data, such as the distribution of configuration data
in Tivoli's profile-based applications and the distribution of
Tivoli/Courier file packages.
- Multipurpose Internet Mail Extensions (MIME)
- An open-ended
standard for including attachments in electronic mail
messages. See also attachment, mail, NeXTMail.
- mux
- See multiplex.
- MX record
- See DNS record types, MX record.