real estate linux back up solution [closed]

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I did a lot of research..but I couldnt find what I exactly want. Can anyone have any/some knowledge regarding how a real estate company backup strategy should be. I mean, there are different backup types such as full, incremental and differential backups.

Which solution(s) a real estate company should use to backup its resources and how frequently (daily, weekly, etc)?

assume that they have 开发者_如何学Golinux servers...

many thanks..

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This belongs to serverfault, However you need to provide more details.

You should run incremental daily backups and a weekly fully backup.

• for MySQL databases check : http://dev.mysql.com/doc/refman/5.1/en/backup-methods.html
• for other files you can use rsync with hard copies.
• Check this TLDPhowto and LJ article
• Concider using encryption on the backup drive, either full disk using dmcrypt or if you use tar/cpio pipe it to openssl (ex : tar -xf - path1 path2 | openssl enc -aes-128-cbc -salt > backup.$(date --iso).tgz.aes

Example daily rsync backup script:

#!/bin/sh
BACKUP_DIR=/mnt/backups/
BACKUP_PATHES="/var /home"

cd ${BACKUP_DIR}
rm -rf backup.5 backup.5.log.bz2 &>/dev/null

recycle() {
    i=$1; y=$(($i+1))
    b=${2-backup}
    mv "${b}.$i" "${b}.$y" &>/dev/null
    mv "${b}.$i.log.bz2" "${b}.$y.log.bz2" &>/dev/null
}

recycle 4
recycle 3
recycle 2
recycle 1
recycle 0

OPTS="--numeric-ids --delete --delete-after --delete-excluded"
nice -n20 ionice -c2 -n2 rsync -axlHh -v --link-dest=../backup.1 ${OPTS} ${BACKUP_PATHES} backup.0/ --exclude-from=/root/.rsync-exclude 2>&1 | bzip2 -9 > backup.0.log.bz2
cd /root &>/dev/null