TMS zl Management and Configuration Guide ST.1.1.100430

B-9
Glossary
DMZ Demilitarized Zone. A zone that is logically between the INTERNAL and
EXTERNAL zones; it usually contains public Internet services.
DN Distinguished Name. The ASN.1 name that is associated with a certificate.
DNS Domain Name System. A protocol that translates between a human-readable
address (www.example.com) and an IP address (10.1.2.15). Translation is
performed in both directions.
domain name A unique, human-readable name that is assigned to a device, such as ns1.pro-
curveu.edu.
domain name
address object
An address object that contains between one and 10 URLs or FQDNs.
domain name
system
See DNS.
DoS Denial of Service. A type of attack that monopolizes a system's resources so
that other users cannot access it.
DR Designated Router. The only router in an OSPF area that floods LSAs to other
routers in the area.
DR priority The priority of a router during DR election.
drop out-of
sequence packets
An attack check performed by the TMS zl Module that drops packets that are
received out of order.
DSA Digital Signature Algorithm. A published standard used to create digital
signatures.
DSCP Differentiated Services Code Point. A field in an IP header that provides a
degree of QoS.
Dynamic Host
Configuration
Protocol
See DHCP.
dynamic routing As opposed to static routing, the creation of routes through frequently updated
messages that routers send to each other.