Varnish Cache
An HTTP caching reverse proxy and accelerator. Cookie, authentication and private-content rules need care to prevent cross-user data exposure.
Definition and sourcesKNOWLEDGE / FROM A TO Z
Glossary
Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.
Terms 5 / 685
Clear filtersVirtualisation
Creating logical environments on shared physical resources. Isolation and guaranteed resources depend on technology and configuration rather than the VPS label alone.
Definition and sourcesVolumetric attack
An attack overwhelming connectivity or infrastructure with traffic volume. Mitigation generally needs filtering upstream of the overloaded resource, not just application-server rules.
Definition and sourcesVPN (Virtual Private Network)
A virtual private network connecting devices or networks through other infrastructure. Common implementations encrypt traffic to the VPN endpoint. It provides neither complete anonymity nor phishing protection; tunnel scope and provider trust matter.
Definition and sourcesVPS (Virtual Private Server)
A virtual server with its own operating environment on shared physical infrastructure. Guaranteed resources depend on the offer. The label alone determines neither cost nor performance; administration, backups and monitoring also matter.
Definition and sources