====== Server & desktop backup solutions ======


===== rsync =====

Follow our [[en:server:services:rsync|rsync]] tutorial first.

The snapshots are stored locally and remotely via rsync daemon. 

<alert type="danger" icon="fa fa-warning">This backup solution is only recommended for an internal network.</alert>

==== Credentials ====

<code>
echo "$password" > /etc/rsyncd.password
chmod 400 /etc/rsyncd.password
</code>


=== Server ===


== Script ==

Add your details for ''DAEMONUSER=""'' and ''DAEMONHOST=""''.

<code>
#!/bin/sh

## Based on:
## my own rsync-based snapshot-style backup procedure
## (cc) marcio rps AT gmail.com

# config vars

SRC="/"
SNAP="/root/backup/"
OPTS="--rltogiPhv --stats --delay-updates --delete --chmod=a-w"
EXCL="--exclude-from=/root/backup-filter.rule"
DAEMONUSER=""
DAEMONHOST=""
MINCHANGES=1

# run this process with real low priority

ionice -c 3 -p $$
renice +12  -p $$

# List and save installed packages
pacman -Qn | awk '{ print $1 }' > /root/pkglist

# sync

rsync $OPTS $EXCL $SRC $SNAP/latest >> $SNAP/rsync.log

# check if enough has changed and if so
# make a hardlinked copy named as the date

COUNT=$( wc -l $SNAP/rsync.log|cut -d" " -f1 )
if [ $COUNT -gt $MINCHANGES ] ; then
        DATETAG=$(date +%Y-%m-%d-%H:%M)
        if [ ! -e $SNAP/$DATETAG ] ; then
                cp -al $SNAP/latest $SNAP/$DATETAG
                chmod u+w $SNAP/$DATETAG
                mv $SNAP/rsync.log $SNAP/$DATETAG
               chmod u-w $SNAP/$DATETAG
         fi
fi


rsync -avAXHP --delete --password-file=/etc/rsyncd.password $SNAP rsync://$DAEMONUSER@$DAEMONHOST/archive/backup/server/root
</code>


== Exclude folder and files ==

This is an example and widely used as a starting point for a server. Add anything you don't need to backup.

<code>
backup-filter.rule
</code>
<code>
/dev/*
/proc/*
/sys/*
/tmp/*
/run/*
/mnt/*
/media/*
/home/*
/root/backup/*
/lost+found
</code>

=== Desktop (home) ===


== Script ==

Add your details for ''DAEMONUSER=""'' and ''DAEMONHOST=""''.

<code>
#!/bin/sh

## Based on:
## my own rsync-based snapshot-style backup procedure
## (cc) marcio rps AT gmail.com

# config vars

real_user=$SUDO_USER

SRC="/home/$real_user/"
SNAP="/home/$real_user/backup/"
OPTS="-rltgoiP --delay-updates --delete --chmod=a-w"
EXCL="--exclude-from=/home/$real_user/backup-filter.rule"
DAEMONUSER=""
DAEMONHOST=""
MINCHANGES=1

# run this process with real low priority

ionice -c 3 -p $$
renice +12  -p $$

# sync

rsync $OPTS $EXCL $SRC $SNAP/latest >> $SNAP/rsync.log

# check if enough has changed and if so
# make a hardlinked copy named as the date

COUNT=$( wc -l $SNAP/rsync.log|cut -d" " -f1 )
if [ $COUNT -gt $MINCHANGES ] ; then
        DATETAG=$(date +%Y-%m-%d-%H:%M)
        if [ ! -e $SNAP/$DATETAG ] ; then
                cp -al $SNAP/latest $SNAP/$DATETAG
                chmod u+w $SNAP/$DATETAG
                mv $SNAP/rsync.log $SNAP/$DATETAG
               chmod u-w $SNAP/$DATETAG
         fi
fi


rsync -avAXHP --delete --password-file=/etc/rsyncd.password $SNAP rsync://$DAEMONUSER@$DAEMONHOST/archive/backup/server/$real_user
</code>


== Exclude folder and files ==

This is an example. Add anything you don't need to backup.

<code>
backup-filter.rule
</code>
<code>
backup/
.cache/
</code>