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IT Dictionary

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

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

DHCP

DHCP automatically assigns IP addresses and other network settings to client devices, usually for a defined lease period.

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DEFINITION

DHCP Failover

DHCP failover enables cooperating DHCP servers to maintain IPv4 lease availability if one server becomes unavailable.

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DEFINITION

DHCPv6

The DHCP version used to distribute parameters and optionally addresses on IPv6 networks.

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DEFINITION

DKIM

A cryptographic signature added to the emails to verify their integrity and origin declared.

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DEFINITION

DMARC

A policy DNS which combines SPF and DKIM to combat the usurpation of email domains.

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