B
- back door
- A usually hidden or secret means for an external user to break into
your host, network, application, or data. See also
virus.
- backup
- A copy of disk files stored on tape or on another physical disk to
prevent permanent data loss. The act of copying disk files to tape or
other distinct physical media to prevent permanent data loss.
- Backup Domain Controller (BDC)
- The server that contains a backup copy of the account database from the
Primary Domain Controller (PDC). Used for
authentication purposes.
- Backward Explicit Congestion Notification (BECN)
- A bit in the Frame Relay header that is set
when the network router detects congestion from the source direction (or
"backward," from the packet's point of view). See also
Forward Explicit Congestion Notification (FECN).
- Basic Object Adapter (BOA)
- Invokes the performance of a request and returns any results to the
client. Also called simply adapter.
- B-channel
- The Integrated Services Digital Network (ISDN)
channel that carries voice and user data.
- BDC
- See Backup Domain Controller (BDC).
- bearer channel
- See B-channel.
- BECN
- See Backward Explicit Congestion Notification (BECN).
- Berkeley Internet Name Daemon (BIND)
- An implementation of the DNS protocol.
Internet name service software, originally written at the University
of California at Berkeley and now maintained by the Internet Software
Consortium. Distribution includes /usr/sbin/named and sample
configuration files.
- BGP
- See Border Gateway Protocol (BGP).
- big six
- The top level domains
(TLD) other than .int.
- BIND
- See Berkeley Internet Name Daemon (BIND).
- binding
- A logical connection between a client process and a server process.
- block
- A unit of disk space containing one or more frags.
See frag.
- BOA
- See Basic Object Adapter (BOA).
- Boot Protocol (BOOTP)
- The protocol that defines how a diskless workstation obtains its
network address from another host. NeXT workstations also use BOOTP
when booted to determine their NetInfo information. Defined in
RFC 951 and
extended by RFC
2132. See also Dynamic Host Configuration
Protocol (DHCP).
- BOOTP
- See Boot Protocol (BOOTP).
- Border Gateway Protocol (BGP)
- A protocol, defined in RFC 1163 and
later refined in RFC
1771, that allows the exchange of packets between networks,
such as a company intranet and the Internet.
- bridge
- Networking hardware that connects two network segments into one
logical segment.
- broadcast
- One host broadcasts when it wants every machine (typically on a LAN)
to receive the packet or information. See also
anycast,
multicast,
unicast.