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I have a node server running on port 8080. This is for some personal development and I'm accessing my web server using localhost in my chrome browser. I'm sitting in a coffeeshop and I don't want outside users to have access to my files on my webserver.

So how do I prevent all users that are not localhost from accessing this web server? is it a node.js setting or a system setting (I'm using a mac). Thanks.

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  • Do you want "localhost-only" all the time or only when outside your home network? – Steven Jun 25 '15 at 18:43
  • only outside my apartment. in my apartment I want to be able to access this from mobile devices. so only in the coffeeshop i want to restrict to localhost. – foreyez Jun 25 '15 at 18:44
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Instead of blocking everything from a firewall, why not just have it bind to 127.0.0.1? Nothing, but things on the local machine, would be able to access it then.

This can be done with express by doing:

app.listen(8080, '127.0.0.1');

or with http:

http.createServer(onRequest).listen(8080, '127.0.0.1');
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I did this by going into

System Preferences -> Security Preferences -> Firewall -> Firewall Options -> Block all incoming connections

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