I am planning to get a cheap vps as a backup vps.. I have read that doing rsync would be the best method...

How do you do it?

I am planning to get a cheap vps as a backup vps.. I have read that doing rsync would be the best method...

How do you do it?

This depends on the contents you need to backup. Use "man rsync" to understand the options. You can then configure the backups accordingly.

Google rsnapshot once you feel comfortable using rsync and it's various cmd line options

Yes, probably rsync is the simplest way to do that.

Google rsnapshot once you feel comfortable using rsync and it's various cmd line options

I usually suggest using Rdiff-backup instead. Rsnapshot uses an inefficient method of creating the snapshot, which takes up extra time, puts a lot of load on the storage system, and complicates filesystem maintenance.