124 lines
2.5 KiB
Text
124 lines
2.5 KiB
Text
====== Server & desktop backup solutions ======
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===== rsync =====
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Follow our [[en:server:services:rsync|rsync]] tutorial first.
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The snapshots are stored locally and remotely via rsync daemon.
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<alert type="danger" icon="fa fa-warning">This backup solution is only recommended for an internal network. Use an encrypted backup method with [[en:backup:server#borg|borg]] instead.</alert>
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==== Dependencies ====
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The script needs ''inetutils'' for ''hostname'' command.
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<code>
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pacman -S inetutils
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</code>
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==== Credentials ====
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<code>
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echo "$password" > /etc/rsyncd.password
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chmod 400 /etc/rsyncd.password
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</code>
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==== Script ====
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Add your details for ''DAEMONUSER=""'' and ''DAEMONHOST=""''.
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<code>
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nano /root/rsnapbackup.sh
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</code>
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<code>
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#!/bin/sh
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## Based on:
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## my own rsync-based snapshot-style backup procedure
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## (cc) marcio rps AT gmail.com
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# config vars
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SRC="/"
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SNAP="/root/backup/"
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OPTS="--rltogiPhv --stats --delay-updates --delete --chmod=a-w"
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EXCL="--exclude-from=/root/backup-filter.rule"
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DAEMONUSER=""
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DAEMONHOST=""
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HOSTNAME=$(hostname)
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MINCHANGES=1
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# run this process with real low priority
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ionice -c 3 -p $$
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renice +12 -p $$
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# List and save installed packages
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pacman -Qn | awk '{ print $1 }' > /root/pkglist
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# sync
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rsync $OPTS $EXCL $SRC $SNAP/latest >> $SNAP/rsync.log
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# check if enough has changed and if so
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# make a hardlinked copy named as the date
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COUNT=$( wc -l $SNAP/rsync.log|cut -d" " -f1 )
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if [ $COUNT -gt $MINCHANGES ] ; then
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DATETAG=$(date +%Y-%m-%d-%H:%M)
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if [ ! -e $SNAP/$DATETAG ] ; then
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cp -al $SNAP/latest $SNAP/$DATETAG
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chmod u+w $SNAP/$DATETAG
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mv $SNAP/rsync.log $SNAP/$DATETAG
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chmod u-w $SNAP/$DATETAG
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fi
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fi
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rsync -avAXHP --delete --password-file=/etc/rsyncd.password $SNAP rsync://$DAEMONUSER@$DAEMONHOST/archive/backup/$HOSTNAME
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</code>
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<code>
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chmod +x /root/rsnapbackup.sh
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</code>
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== Exclude folder and files ==
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This is an example. Add anything you don't need to backup. And change home ''$USER''.
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<code>
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nano /root/backup-filter.rule
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</code>
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<code>
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/dev/*
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/proc/*
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/sys/*
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/tmp/*
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/run/*
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/mnt/*
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/media/*
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/lost+found
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# root user
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/root/backup/*
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/root/.cache/*
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# Home user
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/home/$USER/.cache/*
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</code>
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==== Crontab ====
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Follow our [[en:server:services:crontab|crontab]] tutorial first and add the following for your root user:
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<code>
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@daily /root/rsnapbackup.sh
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</code>
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* ''@yearly''
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* ''@annually''
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* ''@monthly''
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* ''@weekly''
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* ''@daily''
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* ''@hourly''
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* ''@reboot''
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