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linux:rsnapshot

rsnapshot



Homepage

The Official HowTo:
rsnapshot-howto.en.pdf

Where to get

General:

wget http://rsnapshot.org/downloads/rsnapshot-1.3.1.tar.gz
cd rsnapshot-1.3.1

On CentOS:

yum install rnsapshot

Installation

./configure --sysconfdir=/etc
./make test
./make install

The rsnapshot.conf

After the installation edit your rsnapshot.conf:

cp /etc/rsnapshot.conf.defuault /etc/rsnapshot.conf
vi /etc/rsnapshot.conf

The File is well documented. If you want more information just visit the official homepage.
Here is my rsnapshot.conf:

#################################################
# rsnapshot.conf - rsnapshot configuration file #
#################################################
#                                               #
# PLEASE BE AWARE OF THE FOLLOWING RULES:       #
#                                               #
# This file requires tabs between elements      #
#                                               #
# Directories require a trailing slash:         #
#   right: /home/                               #
#   wrong: /home                                #
#                                               #
#################################################
 
#######################
# CONFIG FILE VERSION #
#######################
 
config_version	1.2
 
###########################
# SNAPSHOT ROOT DIRECTORY #
###########################
 
# All snapshots will be stored under this root directory.
#
snapshot_root	/backup/
 
# If no_create_root is enabled, rsnapshot will not automatically create the
# snapshot_root directory. This is particularly useful if you are backing
# up to removable media, such as a FireWire or USB drive.
#
no_create_root	1
 
#################################
# EXTERNAL PROGRAM DEPENDENCIES #
#################################
 
# LINUX USERS:   Be sure to uncomment "cmd_cp". This gives you extra features.
# EVERYONE ELSE: Leave "cmd_cp" commented out for compatibility.
#
# See the README file or the man page for more details.
#
cmd_cp		/bin/cp
 
# uncomment this to use the rm program instead of the built-in perl routine.
#
cmd_rm		/bin/rm
 
# rsync must be enabled for anything to work. This is the only command that
# must be enabled.
#
cmd_rsync	/usr/bin/rsync
 
# Uncomment this to enable remote ssh backups over rsync.
#
#cmd_ssh	/usr/bin/ssh
 
# Comment this out to disable syslog support.
#
cmd_logger	/usr/bin/logger
 
# Uncomment this to specify the path to "du" for disk usage checks.
# If you have an older version of "du", you may also want to check the
# "du_args" parameter below.
#
cmd_du		/usr/bin/du
 
# Uncomment this to specify the path to rsnapshot-diff.
#
#cmd_rsnapshot_diff	/usr/local/bin/rsnapshot-diff
 
# Specify the path to a script (and any optional arguments) to run right
# before rsnapshot syncs files
#
#cmd_preexec	/path/to/preexec/script
 
# Specify the path to a script (and any optional arguments) to run right
# after rsnapshot syncs files
#
#cmd_postexec	/path/to/postexec/script
 
#########################################
#           BACKUP INTERVALS            #
# Must be unique and in ascending order #
# i.e. hourly, daily, weekly, etc.      #
#########################################
 
interval	hourly	6
interval	daily	7
interval	weekly	4
#interval	monthly	3
 
############################################
#              GLOBAL OPTIONS              #
# All are optional, with sensible defaults #
############################################
 
# Verbose level, 1 through 5.
# 1     Quiet           Print fatal errors only
# 2     Default         Print errors and warnings only
# 3     Verbose         Show equivalent shell commands being executed
# 4     Extra Verbose   Show extra verbose information
# 5     Debug mode      Everything
#
verbose		4	
 
# Same as "verbose" above, but controls the amount of data sent to the
# logfile, if one is being used. The default is 3.
#
loglevel	3
 
# If you enable this, data will be written to the file you specify. The
# amount of data written is controlled by the "loglevel" parameter.
#
logfile	/var/log/rsnapshot
 
# If enabled, rsnapshot will write a lockfile to prevent two instances
# from running simultaneously (and messing up the snapshot_root).
# If you enable this, make sure the lockfile directory is not world
# writable. Otherwise anyone can prevent the program from running.
#
lockfile	/var/run/rsnapshot.pid
 
# Default rsync args. All rsync commands have at least these options set.
#
#rsync_short_args	-a
#rsync_long_args	--delete --numeric-ids --relative --delete-excluded
 
# ssh has no args passed by default, but you can specify some here.
#
#ssh_args	-p 22
 
# Default arguments for the "du" program (for disk space reporting).
# The GNU version of "du" is preferred. See the man page for more details.
# If your version of "du" doesn't support the -h flag, try -k flag instead.
#
#du_args	-csh
 
# If this is enabled, rsync won't span filesystem partitions within a
# backup point. This essentially passes the -x option to rsync.
# The default is 0 (off).
#
#one_fs		0
 
# The include and exclude parameters, if enabled, simply get passed directly
# to rsync. If you have multiple include/exclude patterns, put each one on a
# separate line. Please look up the --include and --exclude options in the
# rsync man page for more details on how to specify file name patterns. 
# 
#include	???
#include	???
#exclude	???
#exclude	???
 
# The include_file and exclude_file parameters, if enabled, simply get
# passed directly to rsync. Please look up the --include-from and
# --exclude-from options in the rsync man page for more details.
#
#include_file	/path/to/include/file
#exclude_file	/path/to/exclude/file
 
# If your version of rsync supports --link-dest, consider enable this.
# This is the best way to support special files (FIFOs, etc) cross-platform.
# The default is 0 (off).
#
#link_dest	0
 
# When sync_first is enabled, it changes the default behaviour of rsnapshot.
# Normally, when rsnapshot is called with its lowest interval
# (i.e.: "rsnapshot hourly"), it will sync files AND rotate the lowest
# intervals. With sync_first enabled, "rsnapshot sync" handles the file sync,
# and all interval calls simply rotate files. See the man page for more
# details. The default is 0 (off).
#
#sync_first	0
 
# If enabled, rsnapshot will move the oldest directory for each interval
# to [interval_name].delete, then it will remove the lockfile and delete
# that directory just before it exits. The default is 0 (off).
#
#use_lazy_deletes	0
 
###############################
### BACKUP POINTS / SCRIPTS ###
###############################
 
# LOCALHOST
backup	/inetpub/	localhost/
# backup	/etc/		localhost/
# backup	/usr/local/	localhost/
#backup	/var/log/rsnapshot		localhost/
#backup	/etc/passwd	localhost/
#backup	/home/foo/My Documents/		localhost/
#backup	/foo/bar/	localhost/	one_fs=1, rsync_short_args=-urltvpog
#backup_script		/usr/local/bin/backup_pgsql.sh	localhost/postgres/
 
# EXAMPLE.COM
#backup_script   /bin/date "+ backup of example.com started at %c"   unused1
#backup	root@example.com:/home/	example.com/	+rsync_long_args=--bwlimit=16,exclude=core
#backup	root@example.com:/etc/	example.com/	exclude=mtab,exclude=core
#backup_script	ssh root@example.com "mysqldump -A > /var/db/dump/mysql.sql"
#backup	root@example.com:/var/db/dump/	example.com/	
#backup_script   /bin/date "+ backup of example.com ended at %c"   unused2
 
# CVS.SOURCEFORGE.NET
#backup_script	/usr/local/bin/backup_rsnapshot_cvsroot.sh	rsnapshot.cvs.sourceforge.net/
 
# RSYNC.SAMBA.ORG
#backup	rsync://rsync.samba.org/rsyncftp/	rsync.samba.org/rsyncftp/

Configuration Test

To test the configuration:

rsnapshot configtest

Cronjobs

A good idea is to automate the backup jobs with cronjobs.
Edit your crontab to your needs:

crontab -e

Here is a good example:

# */5 0-1,2-23 * * * /usr/bin/fetchmail -a -v --invisible >/dev/null 2>&1
@hourly                                 /inetpub/data/scripts/rsnapshot_hourly
0       3       *       *       *       /inetpub/scripts/rsnapshot_daily
0       4       *       *       5       /inetpub/scripts/rsnapshot_weekly
0       5       1       *       *       /inetpub/scripts/rsnapshot_monthly

The cronjobs triggers some Scripts.
Here is an Example of my hourly script.
It prints the time it starts, the verbose information of the backup job, the time it stops and finally it sends me a mail.

# //inetpub/data/scripts/rsnapshot_hourly
# based on a Script written by Chrigi Hartmann
# http://www.calandacomp.ch
date > /var/log/snapshot.log
#/bin/mount /dev/sdc1 /mnt/exthd -- Example how to mount an external drive
/usr/bin/rsnapshot -v hourly >> /var/log/snapshot.log
/usr/bin/rsnapshot du >> /var/log/rsnapshot.log
#/bin/umount -l /dev/sdc1 --dont forget tu umount it!
date >> /var/log/snapshot.log
mutt -s "Rsnapshot Hourly" admin@darktemple.ch < /var/log/rsnapshot.log

Copying the Backup

Rsnapshot is using hardlinks. That means you cannot use normal “cp” and “rsync” command withouth the appropirate switches.
To Copy your Backup use:

rsync -axH /mnt/exthd /data/backup
linux/rsnapshot.txt · Last modified: 2016/05/30 21:49 by skull@darktemple.ch