Complete, incremental or differential

kenkendk · February 10, 2018, 9:54pm

You can set the --upload-verification-file option to have it upload a JSON file which lists all the expected files and their hash values. There is a script here that can read this file and verify that it is all fine:

github.com

duplicati/duplicati/blob/master/Tools/Verification/DuplicatiVerify.py

#!/usr/bin/env python

"""
This file is a standalone python script that is tested with python 2.7 & 
python 3.8
If Duplicati is producing a backup with the option --upload-verification-file,
it will produce a *-verification.json file on the backend, which can be verified
by this script. Simply run this script with the path to the backup
folder as input, and it will verify all *-verification.json files in the folder.
"""

from __future__ import print_function
import sys
import os
import string
import json
import base64
import codecs
from hashlib import sha256
import argparse

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This is not possible (at least not on an encrypted copy) as that would allow the remote server to read your data. If the backup is not encrypted, you can read the dlist files and extract the file-listing from that.

Alternatively, you need to install Duplicati on the server.