Around 2006/2007, I was playing around with NetWare 6.5 at work. We had heaps of it but lots of talk about replacing NetWare/eDir/GroupWise with Windows/AD/Exchange (which I think finally did happen after I left the place). My recollection was it was quite unstable - because, having come from Linux, I was playing with bash and SSH. bash would crash a lot (something that very rarely happens on Linux) but it wouldn’t bring down the whole server (which was a dev/test NetWare server anyway). I don’t remember what exactly I was trying to do: I had some work-related justification, which I forget now - something something identity management - but my real reason was just to explore the system. The instability of it convinced me to not take any ideas I had any further.