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| Russian | English |
| резервный сервер | shadow server (то же, что backup server – "In a three-server network, the two servers not chosen to be the master are the shadow servers. If the master server goes down, the shadow server listed next in the license file automatically assumes the role of master. (A shadow server is also known as a backup server.)" Aiduza) |
| резервный сервер домена | backup domain controller (Yeldar Azanbayev) |