DHCPv6
The DHCP version used to distribute parameters and optionally addresses on IPv6 networks.
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IT Dictionary
Clear, technical definitions to understand IT terminology.
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DID
A public number that can be directed directly to an extension or service.
View →Differential Backup
A backup that copies the changes made since the last full backup.
View →Direct-to-Object Backup
A backup or recovery mechanism used to protect data and meet recovery objectives.
View →Disk Encryption Policy Intune
A Microsoft Intune management object used to configure, secure, or target devices and applications.
View →Distribution List
A messaging group that redistributes a message to multiple recipients.
View →DKIM
A cryptographic signature added to the emails to verify their integrity and origin declared.
View →DKIM Selector
A selector DKIM identifies the public key DNS used to verify a signature DKIM.
View →DLP
A set of controls to prevent the leakage of sensitive data.
View →DMARC
A policy DNS which combines SPF and DKIM to combat the usurpation of email domains.
View →DMARC Alignment
Alignment DMARC checks that the domain visible in From corresponds to the domain authenticated by SPF or DKIM.
View →DNAT
A NAT translation that changes the destination address of an incoming packet.
View →dnf
A package manager used in particular on recent Fedora and RHEL.
View →DNS
The directory service that translates domain and host names into IP addresses.
View →DNS Filter FortiGate
A profile that filters requests DNS by category, reputation or domain.
View →DNS over HTTPS (DoH)
A method that encrypts requests DNS in a connection HTTPS.
View →DNS over TLS (DoT)
A method that calculates trade DNS using TLS.
View →DNS sinkhole
DNS sinkhole is a concept or mechanism used in cybersecurity to redirigate some malicious domains to a controlled target.
View →DNS SOA Record
SOA DNS is a concept or mechanism used in network & dns to describe the main parameters of an area DNS.
View →DNS64
A DNS service that synthesizes AAAA answers from A records for use with NAT64.
View →DNSSEC
A mechanism that allows the authenticity of certain answers to be verified cryptographically DNS.
View →Docker Compose
A tool that describes multiple containers, networks, and volumes in a declarative file.
View →Dockerfile
A file containing instructions used to build a container image.
View →Domain Controller
The server that hosts Active Directory and authenticates users and computers of a Windows domain.
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