gulshan-fb

After doing some more investigation, I'm suspecting you're running this on Ubuntu 16.04, and not 14.04. Is this correct?

HHVM doesn't provide a 16.04 package yet in their dl.hhvm.com repo, so what's happening is that the provision script installs the system version of HHVM, which is 3.11. On 14.04, you'll get the correct version which is 3.13.

If you just want to try it out, I'd recommend using the provided instructions for Vagrant. Everything should work with that VM, and if it doesn't please let me know.

Regarding your actual issue, how did you actually run the provision script, and on what type of server (i.e VM or physical machine)?

> btw, I wonder if greater integration with lets encrypt is possible perhaps with a flag?

That's a great idea. I can't say when or whether we'll get to it, but I've created a tracking issue: https://github.com/facebook/fbctf/issues/24

You can read a short summary about what a CTF is here (https://ctftime.org/ctf-wtf/), but the best thing to do is to go out and start playing CTFs. https://ctftime.org/ is a great site that lists all upcoming CTFs. Note that a lot of these CTFs are meant for industry professionals, so don't feel discouraged if you find the problems tough. There are also some high school level and college level CTFs you can participate it.