Monday, October 12, 2009

Leopard Mac Hosts File - How to Edit

How to edit the hosts file in Mac OS X – Leopard

Step 1 – Open the

Either by start typing Terminal on the Spotlight, or by going into Applications -> Utilities -> Terminal.

Step 2 – Open the hosts file

Open the hosts by typing on the Terminal that you have just opened:
view source

1.$ sudo nano /private/etc/hosts

Type your user password when prompted.

Step 3 – Edit the hosts file

The hosts file contains some comments (lines starting with the # symbol), as well as some default hostname mappings (e.g. – localhost). Append your new mappings underneath the default ones. Or edit one of the default values

You can navigate the file using the arrow keys.

Step 4 – Save the hosts file

When done editing the hosts file, press control-o to save the file. Press enter on the filename prompt, and control-x to exit the editor.

Step 5 – Flush the DNS cache

On Leopard you can issue a simple Terminal command to flush the DNS cache, and have your host file changes to take immediate effect: view source print?

1.$ dscacheutil -flushcache

You can now test your new mapping on the browser!

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