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Comment by ww520 | Hacker News Reader

Port 79 doesn't work. What port is that?

Port 79: Finger

Maybe you can thank rtm for this port being banned

  grep '\b79' /etc/services
  finger		79/tcp

You may prefer: grep -w 79 /etc/services

    getent services 79

(Advantage is that getent will follow your nsswitch.conf configuration to find your actual service database).