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In cases when backing up and restoring is performed on different servers, the mapping mechanism is used for associating various entities between the backed up server and the one being restored. The example of this is mapping of IP addresses: the set of available IP addresses at the restored server may differ from the like set at the backed up server, some of the IP addresses could be used on domains at the backed up server. In order to have such domains restored properly and functional, one needs to "map" the corresponding IP addresses so that when Plesk is restored, the appropriate IP addresses are substituted in place of the ones, used at the backed up server. The Plesk Restore utility allows mapping of IP addresses, domains and client accounts.
The most important aspects of mapping IP addresses are:
The type and belonging to a specific client's IP pool are significant. This must be taken into account when mapping IP addresses
Each separate IP address should only be mapped to a separate IP address per a single run of restore.exe
The types (shared or exclusive) of the source IP address and destination IP address must coincide. If the destination IP does not exist, a new one is created with required type.
This may come useful when restoring at a non-clean Plesk installation. It may happen so that the domains you are trying to restore already exist at the Plesk server. Situations like this can be resolved either by mapping domain name or by ignoring the colliding domain names.
You must map IP addresses when restoring domains with hosting configured.
This may come useful when restoring at a non-clean Plesk installation. It may happen so that the client accounts you are trying to restore already exist at the Plesk server. Situations like this can be resolved either by mapping client accounts or by ignoring the colliding client accounts.
If a client account in the backup file and a client account that already exists at the server, where the restore is executed, have the same login name and personal name, the two such accounts are considered the same and the data are merged.