PKP/Backups
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Contents
Create the backup folder
mkdir /var/backup
Rsync
Enable "rsync" in the /etc/default folder
nano /etc/default/rsync
Then create an rsync config file.
nano /etc/rsyncd.conf
[backup] path = /var/backup [home] path = /home [www] path = /var/www [ojs] path = /var/ojs [ocs] path = /var/ocs
Start rsync
/etc/init.d/rsync restart
Do a listing check
rsync localhost::www
Backup Script
Create a backup script
nano /usr/local/bin/backup.sh
Copy and paste the following.
Change the %hostname% variable.
#!/bin/bash
## Setup the backup variables ##
LOCAL_SERVER="%hostname%"
LOCAL_FOLDER="/var/backup"
BACKUP_LOGFILE="/var/log/backup.log"
# Day Of the Week
DOW=`date +%a`
TIME=`date`
{
## Timestamp the beginning of the backup ##
echo "Backup for $LOCAL_SERVER started: $TIME"
## Check that we have a backup folder ##
if [ ! -d $LOCAL_FOLDER ]; then
mkdir -p $LOCAL_FOLDER
echo "New backup folder created"
else
echo "Backup started: $TIME"
fi
## Make sure we're in / since backups are relative to that ##
cd /
## Get a list of the installed software ##
dpkg --get-selections > $LOCAL_FOLDER/installed-software.$DOW
# Backup MySQL database (Check for a root .my.cnf file)
which -a mysql
if [ $? == 0 ] ; then
echo "SQL dump of MySQL database"
mysqldump -A > $LOCAL_FOLDER/mysql-db-$DOW.sql
fi
## Backup the server config files ##
echo "Archive '/etc' folder"
tar czf $LOCAL_FOLDER/etc.tgz.$DOW etc/
## Backup the '/root' folder ##
echo "Archive '/root' folder"
tar czf $LOCAL_FOLDER/root.tgz root/
## Backup the '/usr/local' folder which houses customised software ##
echo "Archive '/usr/local' folder"
tar czf $LOCAL_FOLDER/usr-local.tgz usr/local/
## View the backup folder ##
ls -lhS $LOCAL_FOLDER
## Timestamp the end of the backup ##
TIME=`date`
echo "Backup for $LOCAL_SERVER ended: $TIME"
} > $BACKUP_LOGFILE
## Make a daily copy of the backup log file ##
cp $BACKUP_LOGFILE $BACKUP_LOGFILE.$DOW
## Email the backup logfile to the root user ##
cat $BACKUP_LOGFILE.$DOW | mail -s "Daily backup log from $HOSTNAME" root
### EOF ###
Make the script executeable
chmod 0755 /usr/local/bin/backup.sh
Crontab
Here is a sample script to use for backups. It backups each day at midnight for a week only. A cron job entry is added to the root crontab to run the script at midnight each day. To add the script to the root crontab type the following as the root user:
crontab -e
@midnight /usr/local/bin/backup.sh
Save and exit the crontab editor.
Invoke Local Manual Backup
After you have completed the above, you can start a backup anytime by typing the following as the root user:
/usr/local/bin/backup.sh
Then check the files in the backup folder by typing the following:
ls -lh /var/backup
