Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I know how to edit my hosts file on osx, how can I block the range What do I put in the hosts file?

share|improve this question

You cannot.

/etc/hosts is not for blocking – it is for translating domain names to addresses (when other methods are unavailable) – more specifically, an exact name to a single address. If a program tries to access the address directly, the system won't even touch /etc/hosts, because there will be nothing to look up.

Use a proper firewall, such as ipfw.

share|improve this answer

A simple way to null a range of ip is:

route add lo

Use the routing table to do it :)

share|improve this answer
how can I access the routing table? – John Dec 6 '11 at 13:22
You can just try the command I posted if you are using GNU/Linux :) – Felix Yan Dec 6 '11 at 14:48

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .