Restricting SSH authentication methods based on IP

From: mapa3m (mapa3m_at_earthlink.net)
Date: 10/29/04 

Date: Fri, 29 Oct 2004 02:45:45 GMT

Ladies and Gentlemen,

The problem is as as follows:

I have a server, which is running ssh, and allows both password and key-based
authentication to anyone connecting to it. I need a way to restrict
connection coming in from a certain IP address to be able to authenticate
only as a specific user and only using the key provided, no password auth.

i.e.

The world : connecting from any IP address : any user : any auth method
The dude : connecting from 1.2.3.4 : user thedude : key only

Any and all advice will be greatly appreciated.

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