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How to make changes to Mac /etc/hosts permanent?

I have a Mac Air that my little brother uses. Unfortunately, he likes to waste his time on computer games :(

To prevent him from doing that, I added a line akin to the following to my /etc/hosts/ file:

127.0.0.1 somereallyaddictinggamesite.com

However, my /etc/hosts file always refreshes every time I reboot my Mac, so this line goes away every time I turn on my Mac.

How do I make permanent changes to my /etc/hosts file?

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marked as duplicate by Daniel Beck Dec 29 '12 at 18:13

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Maybe your little brother found out that this line in /etc/hosts is disturbing the access to his game site and thus he removed it? –  ott-- Dec 29 '12 at 17:48
    
That's impossible :) He doesn't know my admin password, and su permissions are required to edit /etc/hosts. –  David Faux Dec 29 '12 at 20:09

1 Answer 1

up vote 1 down vote accepted

The hosts file doesn't normally get reset in OS X. Are you using the Cisco AnyConnect VPN client on your computer? It'll reset the file based on /etc/hosts.ac, so if you're using it you need to make customizations both places. See this previous question and the Mac OS X Hints article that answered it.

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