restic

After some searching arround i found restic as a solution.

It does file based backups has some sort of versioning, encrypts backups and restores permissions and ownership of data.

Following is how i set stuff up.

oh but dont forget ... RTFM

Szenario:

• I do use a server for $stuff
• I have a local Drive for Backups
• I Drive is mounted to the local computer reachable via the internet (in my case a pi, lol)

Setup:

1. init repo: done on mashine to backup. basicly test if everything works on mashine storing the backup and init versioning/repo

   1.1 init command

   restic -r sftp://<USER>@<URL/IP>:<PORT>//media/HDD1/backups init
   

   1.2 enter repo password: (you know notnote thatit down yada yada)

   1.3 enter ssh key (i am using pubkey auth with encrypted ssh key)

   1.4 if done correct you should see a success message ala created restic repository <ID>

2. (optional) alter ssh config for longer timeouts

   2.1 open ~/.ssh/config

   2.2 enter or alter

   ServerAliveInterval 60
   ServerAliveCountMax 240
   

3. setup to back up file

   3.1 create file ala include_from.txt

   3.2 specify folders to backup, for me following works:

   /etc/**
   /var/**
   /home/**
   /root/**
   

   3.3 create file ala exclude_from.txt

   3.4 specify folders to exclude, for me worked following

   .cache
   _cacache
   

Backup:

1. Prepare Machine where backups are stored:

   1.1 plug drive in

   1.2 mount drive

   sudo mount /dev/sda1 /media/HDD1/
   

2. Run Backup (run as root!)

   2.1 run command

   restic -r sftp://<USER>@<URL/IP>:<PORT>//media/HDD1/backups backup --files-from /root/include_from.txt
   

   2.2 enter ssh password

   2.3 enter repo password