Hairpin NAT
A network mechanism used to route, encapsulate, filter, or make IP traffic resilient.
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IT Dictionary
Clear, technical definitions to understand IT terminology.
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Hardened Repository
A strengthened backup repository against malicious deletion or modification.
View →Hardware Virtualization
A virtualization mechanism used to present or manage virtual-machine or cluster resources.
View →Hashing
A one-way function that transforms a data into a fixed size print.
View →HEAD Method HTTP
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →Health Check SD-WAN
A probe that measures availability, latency, loss and gigue of a link WAN.
View →Helm
A package manager for Kubernetes based on configurable charts.
View →Hierarchical Escalation
An ITSM or monitoring concept used to organize support, changes, and service quality.
View →High Availability
An ITSM or monitoring concept used to organize support, changes, and service quality.
View →High-Watermark Vector
Active Directory replication metadata that records the highest USN already received from a partner for a given partition.
View →HOTP
A one-time code based on a shared counter rather than time.
View →HSRP
A red-Dandon bridge protocol.
View →HSTS
HSTS requires the browser to use HTTPS for a specified time.
View →HTTP
The protocol used to exchange resources between a web client and a server.
View →HTTP Cache
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Header
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Keep-Alive
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Method
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Persistent Connection
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Range Request
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Request
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Response
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP Status Code
A Web mechanism used in HTTP exchanges, application security, or TLS validation.
View →HTTP/3
HTTP/3 is a version of HTTP using QUIC in place of TCP.
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