Backup with rsnapshot: Difference between revisions

From Andreida
Line 48: Line 48:
* make sure the remote system has the needed hostkeys
* make sure the remote system has the needed hostkeys
ssh-keygen -A
ssh-keygen -A
* give absolute full paths for "IdentityFile" in your config
* there is no need to give "-F /home/backup/.ssh/config" or "-F /root/.ssh/config", it will be used automatically


=== check ===
=== check ===

Revision as of 08:44, 15 March 2016

install

apt-get install rsnapshot

setup

  • edit /etc/rsnapshot.conf
  • enable cmd_cp
  • enable cmd_du
cmd_du /usr/bin/du
  • enable the schedule
interval    hourly  6
interval    daily   7
interval    weekly  4
interval    monthly 3
  • add directories to backup
backup  /etc/       localhost/
backup  /var/www/home/  localhost/
  • add script to use to generate files which you want to backup
backup_script   /root/bin/backup_my_db localhost/dbbackup/
  • create the db-backup script, in this case /root/bin/backup_my_db
#!/bin/bash
mysqldump -u<USER> -p'<PASSWORD>' --all-databases   > mysql_backup.sql

cronjobs

  • enable the cronjobs
0 */4 * * * /usr/bin/rsnapshot hourly
50 23 * * * /usr/bin/rsnapshot daily
40 23 * * 6 /usr/bin/rsnapshot weekly
30 23 1 * * /usr/bin/rsnapshot monthly

edit, tabs instead of spaces

  • use tabs where the other lines indicate they use tab, spaces will not work
  • if you use vim to edit rsnapshot.conf, put the following into your .exrc
:autocmd BufRead rsnapshot.conf set noexpandtab

or use

set list
set noexpandtab

and then use "tab" instead of "space" where you see tabs (^I).

ssh backup of remote sites

  • enable ssh at all
cmd_ssh /usr/bin/ssh
  • set the parameters if you really need to, prefer ~/.ssh/config
ssh_args -o BatchMode=yes -p 22
  • create an entry for the backup like
 backup  root@your-remote-host-in-config-via-ssh-key:/etc/    your-remote-host/
  • install rsync at the remote host
apt-get install rsync
  • make sure the remote system has the needed hostkeys
ssh-keygen -A
  • give absolute full paths for "IdentityFile" in your config
  • there is no need to give "-F /home/backup/.ssh/config" or "-F /root/.ssh/config", it will be used automatically

check

  • check the config from the shell
rsnapshot configtest