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IT Dictionary

Clear, practical definitions to understand network, security, systems and IT vocabulary.

Filter by topic 63 topics
58matching definitions · 1,058 in the dictionary Clear filters
DEFINITION

Replication

Replication maintains a secondary copy of data, storage volumes or virtual machines, synchronously or asynchronously, to support availability and disa...

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DEFINITION

Reverse DNS

Reverse DNS is a concept or mechanism used in network & dns to resolve an IP address to a name via DNS Inverse.

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DEFINITION

RFC 2833

RFC 2833, updated by RFC 4733, describes RTP telephone-event payloads for sending DTMF digits.

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DEFINITION

RID Master

The RID Master allocates pools of relative identifiers used to create unique Active Directory security principals.

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DEFINITION

RIP

Routing Information Protocol is a distance-vector routing protocol using hop count as its metric, with a maximum usable distance of 15 hops.

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DEFINITION

Rootkit

A rootkit hides malicious activity or maintains privileged access by modifying operating system components.

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