How does Linux use tools to encrypt data?

The security of data is undoubtedly very important. Imagine what would happen if the data in a computer system on a bank was leaked or modified. Even if ordinary people use computers, they should pay attention to data protection. This article will introduce how Linux systems use tools to encrypt data.

For all users, file backup is a very necessary thing, so many users have not taken enough measures to protect their data so far. Whether a computer is working in a cooperative environment or for private use, the machine's hard drive may hang without any warning. In addition, some data loss can be caused by human error. If you don't do regular backups, the data may inevitably be lost, even if you have a professional data recovery company to help.

This article will go six re-encryption backup tools briefly.

1.Attic

Attic is a compressed backup program that can be used for deduplication, encryption, and verification integrity. It is written in Python. Attic's main goal is to provide an efficient and secure way to back up data. The data deduplication technology used by Attic makes it suitable for daily backups because only the changed data is stored.

Features:

Easy to use

Efficient use of storage space, by checking redundant data, deduplication of variable block size can reduce storage Space

Optional data encryption using a 256-bit AES encryption algorithm. Data integrity and reliability are verified using HMAC-SHA256

Offline backup using SDSH

Backup can be mounted as a file system

Website: attic- Backup.org

2.Borg

Borg

is a branch of Attic. It is a secure open source backup program designed to efficiently store new or modified data.

The main goal of Borg is to provide an efficient and secure way to store data. The data deduplication technology used by Borg makes it suitable for daily backups because only the changed data is stored. Authentication encryption makes it suitable for storage in locations that are not completely trusted.

Borg is written in Python. Borg was created in May 2015 to address the difficulty of bringing new code or major changes to Attic.

Features include:

Easy to use

Efficient use of storage space, by checking redundant data, deduplication of variable block size is used to reduce storage Space used

Optional data encryption using a 256-bit AES encryption algorithm. Data integrity and reliability are verified using HMAC-SHA256

Offline backup using SDSH

Backup can be mounted as a file system

Borg and Attic are not compatible.

Website: borgbackup.github.io/borgbackup

3.Obnam

Obnam (OBligatory NAMe) is an easy-to-use, secure Python-based backup program. Backups can be stored on a local hard drive or stored online via the SSH SFTP protocol. If you use a backup server, it does not require any special software, just use SSH.

Obnam achieves the purpose of deduplication by dividing the data into blocks and storing them separately. Each time an incremental backup is used to generate a backup, each backup is generated as a new snapshot, but the facts On top is a true incremental backup. Obnam was developed by Lars Wirzenius.

Features:

Easy to use

Snapshot backup

Data deduplication, cross file, and then generate backup

Can be used GnuPG to encrypt backups

Back up data for multiple clients in a single repository

Backup checkpoints (create a savepoint to every 100MB or other capacity)

Contains multiple options to tune performance, including tuning lru-size or upload-queue-size

Support MD5 validation algorithm to identify duplicate data blocks

Store backups to a server via SFTP Up

Support both push (that is, running on the client) and pull (that is, running on the server)

Website: obnam.org Previous12Next Total 2 Pages