Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.
A protocol for transferring files between client and server. Basic FTP encrypts neither the connection nor credentials. FTPS adds TLS; SFTP is a separate protocol associated with SSH. These names are not interchangeable.
Definition and sourcesPrinciples for managing systems through declared, versioned state and automatic reconciliation. A repository stores desired state while controllers detect drift.
Definition and sourcesA platform for visualising and analysing observability data from multiple sources. Dashboards help interpretation but require correct data and alerting rules.
Definition and sourcesStorage using rotating magnetic platters. Mechanical access affects latency; capacity, reliability and performance depend on the specific model.
Definition and sourcesDesigning a service to limit disruption despite component failures. Redundancy needs tested failover and removal of single points of failure; it does not eliminate risk.
Definition and sourcesProviding resources needed to operate a website or application. Hosting involves more than storage: computing, networking and maintenance matter. Selection depends on project requirements and the provider's responsibilities.
Definition and sourcesAn Apache configuration file affecting a directory when the server permits overrides. It can control redirects and access. It is not universal to every hosting server; Nginx does not read it like Apache.
Definition and sourcesAn application protocol using requests and responses, including for websites and APIs. It defines methods, headers and statuses. Protocol statelessness does not prevent applications from implementing sessions.
Definition and sourcesAn HTTP status indicating a resource has moved permanently. The server normally provides the new address in Location. It is a redirect, not an error, and does not guarantee preserved search rankings.
Definition and sourcesAn HTTP status indicating a temporary redirect while the original address remains the reference. It is not an error. Indexing effects depend on context rather than a blanket rule that 302 never affects search.
Definition and sourcesAn HTTP status indicating that the server refuses the request, possibly because of permissions or access rules. A TLS certificate failure is not a 403 response. Resolve permissions with the administrator instead of bypassing protections.
Definition and sourcesAn HTTP status indicating that a resource was not found or its existence is not disclosed. Check addresses and links. DNS failure happens at a different stage and is not itself an HTTP 404 response.
Definition and sourcesA general HTTP status signalling an unexpected server-side problem. It does not identify a specific cause. Diagnosis requires safe inspection of logs and configuration; updating PHP at random is not a universal fix.
Definition and sourcesAn HTTP status indicating that the server does not support, or refuses to support, the major protocol version used in the request. It concerns HTTP, not the browser version or a general network outage.
Definition and sourcesHTTP carried over a TLS-protected connection. It protects transmission confidentiality and integrity and supports server authentication. A padlock does not establish the owner's honesty or protect against every application defect.
Definition and sourcesAn architecture combining private or on-premises environments with public cloud. Integration, management and data flow matter, not merely having two providers.
Definition and sourcesA backup protected against changes or deletion for a defined retention period and policy. Immutability does not replace permission separation or restoration tests.
Definition and sourcesA service model supplying infrastructure such as virtual machines, networks and storage. Customers typically remain responsible for operating systems and applications.
Definition and sourcesDescribing infrastructure in versioned files rather than only manual configuration. It supports repeatability and review; secrets and state require separate protection.
Definition and sourcesA tool automating application installation and management on hosting. Automated setup does not remove responsibility for updates, configuration and backups.
Definition and sourcesProtocols for addressing and forwarding packets between networks, notably IPv4 and IPv6. IP itself guarantees neither delivery nor ordering nor encryption.
Definition and sourcesTools and activities for processing, storing and communicating information. Business IT includes applications, devices, networks and their maintenance. It extends beyond programming.
Definition and sourcesAn analysis and visualisation interface in the Elastic ecosystem. It provides index exploration and dashboards; permissions should restrict sensitive-log access.
Definition and sourcesA container-application orchestration system managing declared state. It automates operations but needs infrastructure expertise and is not necessary for every project.
Definition and sources