[tor-relays] Port not rechable

[tor]

_Something_ is blocking port 80.

  $ nmap -sT 81.10.248.112 -p 80 -Pn

  Starting Nmap 7.01 ( https://nmap.org ) at 2018-03-02 11:38 PST
  Nmap scan report for cm248-112.liwest.at (81.10.248.112)
  Host is up.
  PORT   STATE    SERVICE
  80/tcp filtered http

  Nmap done: 1 IP address (1 host up) scanned in 3.56 seconds

If you're behind a router doing NAT, you'll need to forward the DirPort and ORPort ports.