Принцип двух регионов и двух серверов Periodic Region Rotation Region 1 live Test & Region 2 Training (T&T) Site A P Site C Asynchronous remote copy P Synchronous remote copy S S Site B Site D Hot backup
Усиление процесса аутентификации пользователя �Mobile TAN ( message sent to a mobile phone client is used in Austria, Bulgaria, Greece , Germany , the Netherlands, Poland, Russia, Ukraine , Hungary , Switzerland, New Zealand, Australia ) �- ITAN (indexed TAN), �- Classic TAN - Bank gives customers a pre- printed list of numbers for a single use, �- Si. TAN - chip TAN. Used by most banks in Germany. The generation is done via chip card �- Token. TAN or foto. TAN. They work by using QR - codes.