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Let shared internet users web browse without Apache
Authored by: ptwithy on Nov 11, '05 01:14:34PM

I open the following ports in my firewall when I am sharing my internet connection. I have a single rule called 'Internet Sharing' that lists all these ports:

22, 25, 43, 53, 80, 143, 443, 993, 5190

These are, respectively: ssh, smtp, whois, dns, http, imap, https, imaps, aol (ichat).

Since I am not running any of these servers on my mac (except ssh, which I have secured to only permit public-key logins), there is really not an issue with having these ports open.

I only share on occasion, such as sharing a hotel DSL line over my wireless connection so the rest of the folks in the room can be on line, so http, mail, and ichat are usually sufficient. If the people sharing need other services, you can add them to the list.

If you run Little Snitch, it can be a handy way of noticing when someone tries to access another service and discovering what port you would need to open.



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