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--- efficient_backups_with_rsnapshot [2010/07/06 12:25] – tkbletsc
+++ efficient_backups_with_rsnapshot [2026/02/21 08:58] (current) – tkbletsc
@@ Line 1: / Line 1: @@
 ====== Efficient backups with rsnapshot ======
-(I need to write a full article here, but I don't have time now.  Basically: stick rsnapshot on a Linux box, set up SSH keys to get into hosts you want to back up, deploy a secure rsync wrapper when you configure the host SSH key for backup access, then set up a cron job to run the thing.)
+Basically, do this: [[https://documentation.ubuntu.com/server/how-to/backups/install-rsnapshot/|https://documentation.ubuntu.com/server/how-to/backups/install-rsnapshot/]]
-reminder: on debian/ubuntu, you need to "sudo apt-get install liblchown-perl" so rsnapshot can set symlink ownership.
+Reminder: on debian/ubuntu, you may need to "sudo apt-get install liblchown-perl" so rsnapshot can set symlink ownership.
-===== Backing up Windows hosts =====
+To restrict the ability of the client to access or even change files on the server being backed up, use [[https://github.com/tkbletsc/rrsync|my rrsync.py]], or perhaps the one from the rsync project.
-Normally, all you'd need to do to make the server back up Windows hosts is to install Cygwin with SSH and rsync and set up SSH keys as normal.  Unfortunately, there's a bug in cygwin that causes rsync over SSH to hang on certain directory trees, and this bug hasn't been solved in years (way to go, open source!).
-So we'll set up **rsyncd**, the dedicated rsync service.
-First, install Cygwin with rsync and anything else you might like.
-Second, set up rsyncd as a service:
-  $ cygrunsrv --install "rsyncd" --path /usr/bin/rsync --args "--daemon --no-detach" --desc "Starts a rsync daemon for accepting incoming rsync connections" --disp "Rsync Daemon" --type auto
-Third, set up ''/etc/rsyncd.conf'' file:
-<file>
-uid = nobody
-gid = nobody
-use chroot = no
-max connections = 4
-syslog facility = local5
-pid file = /var/run/rsyncd.pid
-read only = true
-hosts allow = <BACKUP_SERVER_IP>
-[root]
-	path = /
-	auth users = <USERNAME>
-	secrets file = /etc/rsyncd.secrets
-</file>
-Populate the user list ''/etc/rsyncd.secrets'':
-<file>
-<USERNAME>:<PASSWORD>
-</file>
-Then, on the backup server, create a file ''/root/cron/<WINDOWS_HOST>-rsync-password'':
-<file>
-<PASSWORD>
-</file>
-Now you can add backup lines to your rsnapshot.conf as follows:
-  backup	rsync://<USERNAME>@<WINDOWS_HOST>/root/<PATH>	<WINDOWS_HOST>/	rsync_long_args=--password-file=/root/cron/<WINDOWS_HOST>-rsync-password --no-numeric-ids --delete --relative --delete-excluded
-The <PATH> looks is a cygwin path, so it looks like "''/cygdrive/<DRIVE_LETTER>/<PATH>''" (e.g. "''/cygdrive/c/My Documents/''").  If you've changed the drive path to "''/''" as mentioned in [[Cygwin SSH Server for Windows]], then omit the "''/cygdrive''" part.
-If you want to back up something like your Firefox profile that will have certain files locked, exclude those files.  For example:
-  backup	rsync://<USERNAME>@<WINDOWS_HOST>/root/c/Users/<USERNAME>/Application Data/Mozilla	<WINDOWS_HOST>/	rsync_long_args=--password-file=/root/cron/<WINDOWS_HOST>-rsync-password --no-numeric-ids --delete --relative --delete-excluded --exclude cookies.sqlite-journal --exclude parent.lock --exclude places.sqlite-journal
-Remember that you don't need to escape spaces, since fields in this line are tab-separated.