METHOD AND DEVICE FOR A REACTION-FREE AND INTEGRITY-PROTECTED SYNCHRONIZATION OF LOG DATA

摘要

The invention relates to a method and a device for a reaction-free and integrity-protected synchronization of log data between at least one first network (NW1) and a second network (NW2). The log data is copied by means of a monitoring device (5) upon being transmitted from devices (C) to a first log server (LS1) in the first network (NW1). Metadata of the log data is additionally generated in a first managing unit (A1), said metadata comprising time information, integrity information, origin information, and/or completeness information. The copied log data and the corresponding metadata are transmitted to the second network (NW2) via a unidirectional coupling unit (2) in a reaction-free manner. The lot data is checked and ordered chronologically in the second network using the metadata. Thus, a synchronized copy of the log data from the first network (NW1) is promptly provided in the second network (NW2). In the process, the synchronization process is independent of the system times of individual devices (C) or of the network times of different networks.