Question
Opening a port to an application accessible outside of localhost?
- Posted on April 9, 2016
- Linux Basics
Asked by andershokinson
I’ve seen this question asked a million times before, but I’ve never seen a satisfactory answer. “All ports are open by default.” is not helpful.
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
lsof -i :5000 yields
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
python 11824 root 3u IPv4 10213572 0t0 TCP localhost:5000 (LISTEN)
But it doesn’t work. I have this working on localhost, but it just won’t work over the internet.
http://www.yougetsignal.com/tools/open-ports/ shows that the port is closed.
Does anyone have any advice?
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Your program is listening on
127.0.0.1, the loopback interface, which mean that it’s only accessible from the Droplet itself. In order to be able to access it externally, you will need to configure it to bind to0.0.0.0instead.