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Glossary

Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.

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DServers / Websites

DDoS (Distributed Denial of Service)

An attack using traffic from multiple sources to exhaust resources and disrupt legitimate access. Defence may require upstream filtering and distributed infrastructure. An application firewall alone cannot handle every kind of DDoS.

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DServers

Debian

A community-developed operating-system distribution. It provides packages and updates; release-branch choice affects stability, available versions and support.

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DServers

DirectAdmin

A hosting administration panel for domains, email and accounts. Available functionality depends on permissions and server configuration.

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DDomains / Servers

DNS (Domain Name System)

A hierarchical, distributed naming system. DNS records can identify IP addresses, mail servers and other information. A domain need not correspond to one website or server; DNS answers are also cached.

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DServers

Docker

A platform for building and running application containers. Containers usually share the host kernel; they are not automatically full virtual machines or absolute isolation boundaries.

Definition and sources