Linux BackUp Tools

If you’ve ever lost data due to a system crash, you know how crucial backing up important files can be. Here are 5 Linux Backup Solutions you should check out. I recommend you implement at least one of these Linux Backup Solutions before it’s too late.

rsync

There are tons of Linux users and administrators out there who have customized rsync scripts to handle incremental backups automatically on a daily, weekly, or monthly schedule. From the manual, rsync is described as a program that behaves in much the same way that rcp does, but has many more options and uses the rsync remote-update protocol to greatly speed up file transfers when the destination file is being updated. The rsync remote-update protocol allows rsync to transfer just the differences between two sets of files across the network connection, using an efficient checksum-search algorithm described in the technical report that accompanies this package.

In centos

yum -y install rsync xinetd

Add xinetd service to system

# chkconfig --add xinetd

Make sure xinetd running on init 3 and 5

# chkconfig --list xinetd

Enable rsync

# vi /etc/xinetd.d/rsync

Change disable = yes into disable = no

Create username and password for rsync client to use

# vi /etc/rsyncd.secrets

root:hispassword

Create configuration and shares for rsync daemon

# vi /etc/rsyncd.conf

———————-

max connections = 2

log file = /var/log/rsync.log

timeout = 300

[shares]

comment = shared data stored here

path = /home/adminname/shares

read only = false

list = yes

uid = root

gid = root

auth users = root

secrets file = /etc/rsyncd.secrets

hosts allow = mac1.hostname.com mac2.hostname.com mac3.hostname.com

———————-

Secure /etc/rsyncd.*

# chown root.root /etc/rsyncd.*

# chmod 600 /etc/rsyncd.*

Restart xinetd

# service xinetd restart

Make sure rsync now running

# chkconfig --list

testing

rsync -a -e ssh /www/backup.tar.gz root@mac2.hostname.com:/home/backup

mondorescue

Mondorescue backs up your GNU/Linux server or workstation to tape, CD-R, CD-RW, DVD-R[W], DVD+R[W], NFS or hard disk partition. In the event of catastrophic data loss, you will be able to restore all of your data [or as much as you want], from bare metal if necessary. Personally, I like using Mondorescue to create DVD disk images of my system periodically. Upon initial installation and configuration of my Linux or Windows machine, I create a DVD disk image with Mondo so that if anything ever gets screwed up, I can pop in the DVD disk and restore back to my original configuration. The mondorescue team is great and the lead developers of the project are very active on the public mailing list offering help to normal users whenever needed.

For CentOS Downloads

http://mondorescue.muskokamug.org/rhel/5/

rpm -ivh afio

rpm -ivh buffer

yum install mkisofs

rpm -ivh mindi-busybox

rpm -ivh mindi

rpm –ivh mondo

After Installation

Rum commands mondoarchive

Amanda

AMANDA, the Advanced Maryland Automatic Network Disk Archiver, is a backup system that allows the administrator to set up a single master backup server to back up multiple hosts over network to tape drives/changers or disks or optical media. Amanda uses native dump and/or GNU tar facilities and can back up a large number of workstations running multiple versions of Unix. Amanda uses Samba or Cygwin to back up Microsoft Windows desktops and servers.

For CentOS

Step 1:

yum -y install amanda*

Step 2:

after install Modify

/etc/xinetd.d/amanda

/etc/xinetd.d/amandaidx

/etc/xinetd.d/amidxtape

Change Disable = yes to Disable = no.

Step 3:

cp -r /etc/amanda/DailySet1 /etc/amanda/intra

Step 4:

Edit Your Amanda.conf file

/etc/amanda/intra/amanda.conf

Step 5:

Edit /etc/amanda/intra/disklist

Step 6:

Edit hosts file: /etc/hosts

Step 7:

Create backup directory

mkdir -p -m 770 /backup/intra/slots

chown -R amanda:disk /backup

Step 8:

Create tape File

touch /etc/amanda/intra/tapelist

Step 9:

Create slots

su - amanda

cd /backup/intra/slots

for ((i=1; $i<=15; i++)); do mkdir slot$i; done

ln -s slot1 data

Step 10:

Test virtual tapes:

/usr/sbin/ammt -f file:/backup/intra/slots status

Step 11:

Edit .amandahosts to allow communications from clients:

/var/lib/amanda/.amandahosts

Step 12:

Start service

service xinetd start

chkconfig --list