User-Dependent Identity File

[John Bowman]

Hi,
	In SSH, there is a way of telling ssh to look for identification
files in a user-dependent location other than in default directory, $HOME/.ssh,
without creating a separate ~/.ssh/config entry for each user.
For example, in sshd_config one can specify
       UserConfigDirectory             "/etc/ssh2/auth/%U"
where %U stands for the incoming $USER.

This is required for security if user home directories are NFS mounted.
Has such a facility been implemented in OpenSSH? If so, can anyone tell me
what the syntax is? I can't find anything in the man pages or FAQ.

-- John Bowman
University of Alberta
http://www.math.ualberta.ca/~bowman