How to run NodeBB over HTTPS on Apache?

[henrywright]

I set up NodeBB to run over normal HTTP. It's working fine but now I want everything over HTTPS.

So, I've followed the How To Set Up Apache with a Free Signed SSL Certificate on a VPS tutorial on Digital Ocean but when I visit my forum https://example.com, I get a timeout error.

I see this error in my Apache logs:

[Mon Aug 10 18:20:57.401710 2015] [proxy_http:error] [pid 8277:tid 3025124160] (20014)Internal error: [client 89.242.27.52:24026] AH01102: error reading status line from remote server 127.0.0.1:4567, referer: http://example.com/admin/settings/general

Does anyone what I'm missing?

[henrywright]

Of course I hadn't allowed the 443 port on my firewall. Now resolved. Thanks for looking!