JungleDisk is unreliable: what should I replace my server backups with?

I've used JungleDisk (https://www.jungledisk.com/) Server Edition to back up my home server and a dedicated server (both Linux) for 3 years. It's never been totally reliable and the daemon will silently fail while continuing to run in the background - or its HTTP endpoint will drop. What would you recommend I replace it with? I've heard of many backup scripts and services, but most are less polished and leave room for user error (me) to cock things up. JungleDisk is a single binary you install and then configure via a client. My backups need to be versioned and I'd like the backup solution to tell me when it doesn't run or otherwise fails, rather than doing so silently.