Scenario : –
1) Take daily backup of linux server to local backup disk/secondary drive
2) Copy the backup drive to the remote server.
( Using this method we can keep our data in 3 different places )
Setup Local Backup
1) create a folder /backup
2) rsync the necessary files to /backup
rsync -avzub /boot/ /backup/boot
rsync -avzub /usr/local/scripts/ /backup/User_local_scripts
rsync -avpuzb –exclude ‘logs’ –copy-links –exclude ‘logs’ –exclude ‘*.tar’ –exclude ‘*.gz’ –exclude ‘*.zip’ –exclude ‘*.sql’ –exclude ‘log’ /usr/local/apache/htdocs /backup/apache_htdocs
Copy the local backup to Remote server
Now all the necessary files are copied to /backup. We need to copy this to a remote backup server for data redundancy .
I found Rdiff is a nice backup tool for copying folders overs a network.
Rdiff-backup:- is a very nice backup tool.We can copy one directory to another ,possibly over a network.The target directory ends up a copy of the source directory, but extra reverse diffs are stored in a special subdirectory of that target directory, so you can still recover files lost some time ago. The idea is to combine the best features of a mirror and an incremental backup. rdiff-backup also preserves subdirectories, hard links, dev files, permissions, uid/gid ownership, modification times, extended attributes, acls, and resource forks. Also, rdiff-backup can operate in a bandwidth efficient manner over a pipe, like rsync. Thus you can use rdiff-backup and ssh to securely back a hard drive up to a remote location, and only the differences will be transmitted. Finally, rdiff-backup is easy to use
1) Download rdiff and install rdiff
yum install rdiff-backup ( easiest method )
Or you can download the tar and Install
2) tar –zxf rdiff-backup-1.2.8.tar.gz
3) cd rdiff-backup
6) make install
7) Create a script to copy the directory to remote server.
# hostname adminlogs.info
# this will copy the /backup folder to remoteserver /backup location
rdiff-backup /backup remoteserverIP::/backup/adminlogs > /dev/null 2>&1
8) add this script to cron ( execute the cron at 1:30 am )
30 01 * * * bash rdiff-backupTo-Remote.sh
NB :- You should allow password less login from the local server to remote server.
You can use the following url to create the ssh password less login
That’s it…You have successfully configured your backup script. You can relax , your data is safe and available in 3 disks 😉