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Full Discussion: monitoring SSH authorized_keys
Top Forums UNIX for Advanced & Expert Users monitoring SSH authorized_keys Post 302128194 by sysgate on Monday 23rd of July 2007 10:16:26 AM
Old 07-23-2007
I guess this is not such an easy task, but you can use TCL/Expect to achieve this. A while ago I've posted a suggestion how-to do this with expect, certainly, you are free to modify this little example per your needs.
So the logic would be as follows :
Use the expect part, as if you were simulating ssh sessions.
If the login is successful, just add entry to a log file, like :
Code:
If $? eq 0; then echo "Login to server $x OK, `date`" 
    else mail -s "Login to server $x failed" your@mail.com

This should be done for all of the 200 servers.
 

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LEARN ABOUT DEBIAN

ssh-askpass-fullscreen

SSH-ASKPASS-FULLSCREEN(1)				      General Commands Manual					 SSH-ASKPASS-FULLSCREEN(1)

NAME

       ssh-askpass-fullscreen - A simple replacement for ssh-askpass written with gtk2

SYNOPSIS

       ssh-askpass-fullscreen

DESCRIPTION

       This manual page was written for the Debian distribution because the original program does not have a manual page.

       gnome-ssh-askpass  is  a  GNOME-based passphrase dialog for use with OpenSSH. It is intended to be called by the ssh-add(1) program and not
       invoked directly.  It allows ssh-add(1) to obtain a passphrase from a user, even if not connected to a terminal (assuming that an X display
       is available).  This happens auto-matically in the case where ssh-add is invoked from one's ~/.xsession or as one of the GNOME startup pro-
       grams, for example.

       In order to be called automatically by ssh-add, ssh-askpass-fullscreen should be installed as /usr/bin/ssh-askpass

       ssh-askpass-fullscreen is a program that...

ENVIRONMENT VARIABLES

       The following environment variables are recognized:

       GNOME_SSH_ASKPASS_GRAB_SERVER
			    Causes gnome-ssh-askpass to grab the X server before asking for a passphrase.

       GNOME_SSH_ASKPASS_GRAB_POINTER
			    Causes gnome-ssh-askpass to grab the mouse pointer will be grabbed too.

       These  may have some benefit to security if you don't trust your X server. Keyboard is always grabbed.

       SEE ALSO
	      ssh-add(1), ssh-askpass(1).

AUTHOR

       This manual page was written by Marco Presi (Zufus) <zufus@debian.org>, for the Debian GNU/Linux system (but may be used by others) and	it
       is based on that for x11-ssh-askpass by Philip Hands and the one for gnome-ssh-askpass by Colin Watson <cjwatson@debian.org>

								   May 8 , 2004 					 SSH-ASKPASS-FULLSCREEN(1)
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