My friend and I have had issues submitting flags on this box when we owned it. I had to wait nearly 20 minutes and wait for the flag to regenerate before the site would take it last night. Haven’t had the issue on the other ones. Friend had the same issue tonight when he did it. I’m running on a VIP instance and he was on the free server - both had the same issue.
Pretty good box though. Root was pretty trivial but the initial foothold took a little searching for the correct exploit.