Sep 232012
 

From tarbackup

In a nutshell, the tarbackup service is more or less a free private SFTP server for people to put their encrypted backups on. If you have a crash or fire, you can download your backup, decrypt it, and restore it.

Go to http://tarbackup.com and create an account for free.

Backup your system

mkdir /backups
tar -cvpzf /backups/fullbackup.tar.gz --directory=/ --exclude=proc --exclude=sys --exclude=dev/pts --exclude=backups .

  
Encrypt the tar file
To encrypt your backup, you need a secret key. You need to keep this key safe on a usb drive or in your email. You can’t restore your files without the key!
 
 
Create your secret encryption key

echo mysupersecretkey > /backups/key

 
 
Encrypt your backup with openssl

openssl enc -aes-256-cbc -salt -in fullbackup.tar.gz -out fullbackup.tar.gz.enc -pass file:/backups/key

 
 
Upload your backup to tarbackup.com

cd /backups
sftp [email protected]:/storage/
put fullbackup.tar.gz.enc
quit

 
 

Restoring your data

 
 
Download your data from tarbackup via sftp

mkdir /restores
cd /restores
sftp [email protected]:/storage/
ls
get fullbackup.tar.gz.enc
quit

 
 
Decrypt the file

openssl enc -d -aes-256-cbc -in fullbackup.tar.gz.enc -out fullbackup.tar.gz -pass file:/path/to/secret/password.txt

 
 
Extract your data

tar -xvzf fullbackup.tar.gz -C /

 
 
From tarbackup

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