AFP Out Of Date In OS X Lion

Found a workaround to enable (and disable) DHCAST128 in Lion, by default Apple disables support for the “DHCAST128″, which is commonly used by NAS boxes. This is because it is thought is it insufficiently secure. So all the Vendors must work with Apple for Lion compatibility.

To turn on “DHCAST128″ support please do the following on your Mac running Mac OS X 10.7 Lion:

1)  Launch /Applications/Utilities/Terminal and do:
sudo chmod o+w /Library/Preferences
Then:
defaults write /Library/Preferences/com.apple.AppleShareClient afp_host_prefs_version -int 1
Now Quit from Terminal and restart your computer.

From Finder, select an AFP server, or use “Connect To…”.  This will cause the AFP Client to create the full preferences file

3)  Launch Terminal again and do:
sudo defaults write /Library/Preferences/com.apple.AppleShareClient afp_disabled_uams -array “Cleartxt Passwrd” “MS2.0″ “2-Way Randnum exchange”
Then:
sudo chmod o-w /Library/Preferences
Now Quit from Terminal and restart your computer.

Note:  To add a “DHCAST128″ to the disable list, use
sudo defaults write /Library/Preferences/com.apple.AppleShareClient afp_disabled_uams -array-add “DHCAST128″

This has been tested on my OS X Lion 10.7 GM Installation and works like a dream.