Rendszervisszaersítés

Rendszervisszaersítés is a technical procedure used in information technology to restore a computer or network system to a prior state, usually preceding a configuration change, software update, or security incident. The term derives from the Hungarian words for "system" (rendszer) and "revert" (visszaérés), indicating its purpose of reverting changes. Unlike a general system backup, which stores data at a given point, a rendszervisszaersítés specifically targets the integrity of system configuration, operating system settings, and installed applications. In practice, it may involve rolling back registry entries, replacing hypermined files, or restoring system images captured by snapshot tools.

The main scenarios in which rendszervisszaersítés is applied include regression following a buggy patch, failure of a new deployment, or compromise during a security breach. Specific tools such as Windows System Restore, Linux snapshot utilities, and corporate backup suites can automate the process, while some organizations maintain dedicated rollback environments such as immutable containers or hardened recovery servers. Because the operation can affect application logic and integration, it is usually executed under controlled conditions, often during scheduled maintenance windows.

Comparatively, rendszervisszaersítés differs from data restoration, which targets user files, and from disaster recovery, which covers wider infrastructure. The procedure also shares similarities with forensic rollback, used by incident responders to preserve evidence. In many enterprises, a formal rollback policy is documented to mitigate downtime and ensure compliance with audit requirements.