MySQL Replication
I found myself with some spare time the other day and decided that my current mysql backup strategy is not the best in the world. The mysql server is a virtual machine in a Brisbane datacenter and it's backed up via a script that calls mysqldump on each installed database and dumps the content to (compressed) files. These files then get sucked down to Melbourne via rdiff-backup.
This is fine in principle, but does mean it's possible for me to lose 24 hours worth of data due to an accidental 'DROP table' query.