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## Operational notes
* Backups capture MyTonCtrl data, validator config, and keyring files. Always store backup archives securely (they contain private keys).
* Restoration overwrites existing configuration. Ensure the donor node is offline before restoring its backup to avoid data divergence.
* Both scripts expect `sudo` or equivalent privileges when manipulating system files. Use the `-u` flag to match the original install user if necessary.
## create\_backup
**Purpose:** Generate a compressed archive containing MyTonCtrl configuration, keyring, and validator data.
**Syntax**
```mytonctrl theme={null}
create_backup [filename] [-u ]
```
**Behavior**
* Exports the validator keyring via `exportallprivatekeys`, captures the current `config.json`, and stages them in a temporary directory.
* Invokes `scripts/create_backup.sh` with:
* `-m` pointing to the MyTonCtrl working directory (usually `/var/ton-work`).
* `-t` referencing the temporary snapshot directory.
* Optional `-d ` when you supply `filename`; otherwise the script chooses its own name.
* Optional `-u ` to run the backup script as a specific system user (defaults to the effective user).
* Removes the temporary directory afterwards and prints `create_backup - OK` or `... - Error` based on the script’s exit code.
**Examples**
```mytonctrl theme={null}
create_backup
create_backup mynode-backup-2024-05-01.tar -u validator
```
## restore\_backup
**Purpose:** Restore a previously created backup archive into the current node environment.
**Syntax**
```mytonctrl theme={null}
restore_backup [-y] [--skip-create-backup] [-u ]
```
**Behavior**
* Requires the backup archive filename. Optional flags:
* `-y` skips the interactive confirmation prompt.
* `--skip-create-backup` prevents MyTonCtrl from making a safety backup of the current state before restoring.
* `-u ` runs the restore script as the specified system user (defaults to the current user).
* Without `--skip-create-backup`, first calls `create_backup` with default arguments so you can roll back if needed.
* Resolves the node’s IP address, then runs `scripts/restore_backup.sh` with `-m `, `-n `, `-i ` (converted to integer form).
* If restoration succeeds and validator mode is active, reinitializes BTC Teleport to ensure the service still matches the restored state.
* Exits MyTonCtrl after a successful restore so you can restart with the new configuration.
**Examples**
```mytonctrl theme={null}
restore_backup mynode-backup-2024-05-01.tar
restore_backup mynode-backup-2024-05-01.tar -y --skip-create-backup -u validator
```